Organisationsahrefsocannleea272 ()opensuse-15.6-5.3_opam-2.3

opensuse-15.6-5.3_opam-2.3

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2025-07-13 09:56.44: New job: test ahrefs/ocannl https://github.com/ahrefs/ocannl.git#refs/heads/master (eea2724e17749cfdc7c10490e25b2b21feb873f9) (linux-x86_64:opensuse-15.6-5.3_opam-2.3)
Base: ocaml/opam:opensuse-15.6-ocaml-5.3@sha256:0fac28c677868b193e3ca172de36d8b2356d0c39cbebc3c975d914e94c5d6b19
Opam project build


To reproduce locally:


git clone --recursive "https://github.com/ahrefs/ocannl.git" -b "master" && cd "ocannl" && git reset --hard eea2724e
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:opensuse-15.6-ocaml-5.3@sha256:0fac28c677868b193e3ca172de36d8b2356d0c39cbebc3c975d914e94c5d6b19
# opensuse-15.6-5.3_opam-2.3
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam
RUN opam init --reinit -ni
RUN uname -rs && opam exec -- ocaml -version && opam --version
WORKDIR /src
RUN sudo chown opam /src
RUN cd ~/opam-repository && (git cat-file -e 64169c3d1d6774ef4ce0fcc471269bb09cd215f5 || git fetch origin master) && git reset -q --hard 64169c3d1d6774ef4ce0fcc471269bb09cd215f5 && git log --no-decorate -n1 --oneline && opam update -u
COPY --chown=1000:1000 neural_nets_lib.opam arrayjit.opam ./
RUN opam pin add -yn neural_nets_lib.dev './' && \
opam pin add -yn arrayjit.dev './'
RUN echo '(lang dune 3.0)' > './dune-project'
ENV DEPS="angstrom.0.16.1 astring.0.8.5 backoff.0.1.1 base.v0.17.3 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigarray-compat.1.1.0 bigstringaf.0.10.0 camlp-streams.5.0.1 camlzip.1.13 cmdliner.1.3.0 conf-libcurl.2 conf-libffi.2.0.0 conf-pkg-config.4 conf-zlib.1 cppo.1.8.0 csexp.1.5.2 csv.2.4 ctypes.0.23.0 ctypes-foreign.0.23.0 curl.0.10.0 dune.3.19.1 dune-configurator.3.19.1 fieldslib.v0.17.0 fmt.0.10.0 integers.0.7.0 jane-street-headers.v0.17.0 jst-config.v0.17.0 logs.0.9.0 mdx.2.5.0 mtime.2.1.0 multicore-magic.2.3.1 num.1.6 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.1 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 parsexp.v0.17.0 pprint.20230830 ppx_assert.v0.17.0 ppx_base.v0.17.0 ppx_cold.v0.17.0 ppx_compare.v0.17.0 ppx_derivers.1.2.1 ppx_deriving.6.1.0 ppx_enumerate.v0.17.0 ppx_expect.v0.17.3 ppx_fields_conv.v0.17.0 ppx_globalize.v0.17.2 ppx_hash.v0.17.0 ppx_here.v0.17.0 ppx_inline_test.v0.17.1 ppx_minidebug.2.3.0 ppx_optcomp.v0.17.1 ppx_sexp_conv.v0.17.1 ppx_string.v0.17.0 ppx_variants_conv.v0.17.1 ppxlib.0.36.0 ppxlib_jane.v0.17.4 printbox.0.12 printbox-ext-plot.0.12 printbox-html.0.12 printbox-md.0.12 printbox-text.0.12 ptime.1.2.0 re.1.13.2 result.1.5 saturn_lockfree.0.5.0 seq.base sexplib.v0.17.0 sexplib0.v0.17.0 stdio.v0.17.0 stdlib-shims.0.3.0 thread-local-storage.0.2 time_now.v0.17.0 topkg.1.0.8 tyxml.4.6.0 uucp.16.0.0 uutf.1.0.4 variantslib.v0.17.0"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.3 --depext-only -y neural_nets_lib.dev arrayjit.dev $DEPS
RUN opam install $DEPS
COPY --chown=1000:1000 . /src
RUN opam exec -- dune build @install @check @runtest && rm -rf _build


END-OF-DOCKERFILE
docker build .
END-REPRO-BLOCK


2025-07-13 09:56.44: Using cache hint "ahrefs/ocannl-ocaml/opam:opensuse-15.6-ocaml-5.3@sha256:0fac28c677868b193e3ca172de36d8b2356d0c39cbebc3c975d914e94c5d6b19-opensuse-15.6-5.3_opam-2.3-ee06dfbb3e21290708c2c8a6224283e3"
2025-07-13 09:56.44: Using OBuilder spec:
((from ocaml/opam:opensuse-15.6-ocaml-5.3@sha256:0fac28c677868b193e3ca172de36d8b2356d0c39cbebc3c975d914e94c5d6b19)
(comment opensuse-15.6-5.3_opam-2.3)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(workdir /src)
(run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam"))
(run (shell "opam init --reinit -ni"))
(run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
(workdir /src)
(run (shell "sudo chown opam /src"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 64169c3d1d6774ef4ce0fcc471269bb09cd215f5 || git fetch origin master) && git reset -q --hard 64169c3d1d6774ef4ce0fcc471269bb09cd215f5 && git log --no-decorate -n1 --oneline && opam update -u"))
(copy (src neural_nets_lib.opam arrayjit.opam) (dst ./))
(run (network host)
(shell  "opam pin add -yn neural_nets_lib.dev './' && \
\nopam pin add -yn arrayjit.dev './'"))
(run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
(env DEPS "angstrom.0.16.1 astring.0.8.5 backoff.0.1.1 base.v0.17.3 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigarray-compat.1.1.0 bigstringaf.0.10.0 camlp-streams.5.0.1 camlzip.1.13 cmdliner.1.3.0 conf-libcurl.2 conf-libffi.2.0.0 conf-pkg-config.4 conf-zlib.1 cppo.1.8.0 csexp.1.5.2 csv.2.4 ctypes.0.23.0 ctypes-foreign.0.23.0 curl.0.10.0 dune.3.19.1 dune-configurator.3.19.1 fieldslib.v0.17.0 fmt.0.10.0 integers.0.7.0 jane-street-headers.v0.17.0 jst-config.v0.17.0 logs.0.9.0 mdx.2.5.0 mtime.2.1.0 multicore-magic.2.3.1 num.1.6 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.1 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 parsexp.v0.17.0 pprint.20230830 ppx_assert.v0.17.0 ppx_base.v0.17.0 ppx_cold.v0.17.0 ppx_compare.v0.17.0 ppx_derivers.1.2.1 ppx_deriving.6.1.0 ppx_enumerate.v0.17.0 ppx_expect.v0.17.3 ppx_fields_conv.v0.17.0 ppx_globalize.v0.17.2 ppx_hash.v0.17.0 ppx_here.v0.17.0 ppx_inline_test.v0.17.1 ppx_minidebug.2.3.0 ppx_optcomp.v0.17.1 ppx_sexp_conv.v0.17.1 ppx_string.v0.17.0 ppx_variants_conv.v0.17.1 ppxlib.0.36.0 ppxlib_jane.v0.17.4 printbox.0.12 printbox-ext-plot.0.12 printbox-html.0.12 printbox-md.0.12 printbox-text.0.12 ptime.1.2.0 re.1.13.2 result.1.5 saturn_lockfree.0.5.0 seq.base sexplib.v0.17.0 sexplib0.v0.17.0 stdio.v0.17.0 stdlib-shims.0.3.0 thread-local-storage.0.2 time_now.v0.17.0 topkg.1.0.8 tyxml.4.6.0 uucp.16.0.0 uutf.1.0.4 variantslib.v0.17.0")
(env CI true)
(env OCAMLCI true)
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam update --depexts && opam install --cli=2.3 --depext-only -y neural_nets_lib.dev arrayjit.dev $DEPS"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
(copy (src .) (dst /src))
(run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
)


2025-07-13 09:56.44: Waiting for resource in pool OCluster
2025-07-13 09:56.44: Waiting for worker…
2025-07-13 09:56.45: Got resource from pool OCluster
Building on odawa.caelum.ci.dev
All commits already cached
HEAD is now at eea2724e Remove printing range_of_shape tensors in tests (they are virtual now by default).


(from ocaml/opam:opensuse-15.6-ocaml-5.3@sha256:0fac28c677868b193e3ca172de36d8b2356d0c39cbebc3c975d914e94c5d6b19)
2025-07-13 09:56.45 ---> using "af134770f26c4dbbccdbf242b3fd60adcbadedaa16c898f81c412f84622b0d07" from cache


/: (comment opensuse-15.6-5.3_opam-2.3)


/: (user (uid 1000) (gid 1000))


/: (env CLICOLOR_FORCE 1)


/: (env OPAMCOLOR always)


/: (workdir /src)


/src: (run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam"))
2025-07-13 09:56.45 ---> using "9a178abce306547f43d7329fc8f11ed15bcef579687926d74e02c51639869868" from cache


/src: (run (shell "opam init --reinit -ni"))
Configuring from /home/opam/.opamrc and then from built-in defaults.
Checking for available remotes: rsync and local, git.
- you won't be able to use mercurial repositories unless you install the hg command on your system.
- you won't be able to use darcs repositories unless you install the darcs command on your system.


This development version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.2, which can't be reverted.
You may want to back it up before going further.


Continue? [y/n] y
Format upgrade done.


<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2025-07-13 09:56.45 ---> using "90df1f73e18a7ea5b88ec6dfe73dd4450a9e32b9b83c57b0678af91b00010b4d" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-60-generic
The OCaml toplevel, version 5.3.0
2.3.0
2025-07-13 09:56.45 ---> using "470775936aec4077ad543a503cbf844ba2c378b1b0a828c1a60c50d4d95ea58d" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2025-07-13 09:56.45 ---> using "c1397b40f74f7ea07c0987210968c83571f80d39f7fd9828ac7a495cb4cf4694" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 64169c3d1d6774ef4ce0fcc471269bb09cd215f5 || git fetch origin master) && git reset -q --hard 64169c3d1d6774ef4ce0fcc471269bb09cd215f5 && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
6dea2f9390..0094db1438  master     -> origin/master
64169c3d1d Merge pull request #28149 from dbuenzli/b0-publish-logs.0.9.0


<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] synchronised from git+file:///home/opam/opam-repository


Everything as up-to-date as possible (run with --verbose to show unavailable upgrades).
However, you may "opam upgrade" these packages explicitly, which will ask permission to downgrade or uninstall the conflicting packages.
Nothing to do.
# To update the current shell environment, run: eval $(opam env)
2025-07-13 09:56.45 ---> using "a3e762f12d185094678b06a240f4889cf89240ca38625df9485a2f60bd1d34b7" from cache


/src: (copy (src neural_nets_lib.opam arrayjit.opam) (dst ./))
2025-07-13 09:56.45 ---> using "45e9026503284a51d5759c886cd14a755f813a93959738a21222fbb472f8ec92" from cache


/src: (run (network host)
(shell  "opam pin add -yn neural_nets_lib.dev './' && \
\nopam pin add -yn arrayjit.dev './'"))
[neural_nets_lib.dev] synchronised (file:///src)
neural_nets_lib is now pinned to file:///src (version dev)
[arrayjit.dev] synchronised (file:///src)
arrayjit is now pinned to file:///src (version dev)
2025-07-13 09:56.45 ---> using "b07c406aba0559dd81a9cbd131426a4b8658654f728b7aef356f6f7791790ec7" from cache


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2025-07-13 09:56.45 ---> using "fb684cb5f88dc011a342191b66dbc7f9f85088eebe89bc7c611ce618a0094c27" from cache


/src: (env DEPS "angstrom.0.16.1 astring.0.8.5 backoff.0.1.1 base.v0.17.3 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigarray-compat.1.1.0 bigstringaf.0.10.0 camlp-streams.5.0.1 camlzip.1.13 cmdliner.1.3.0 conf-libcurl.2 conf-libffi.2.0.0 conf-pkg-config.4 conf-zlib.1 cppo.1.8.0 csexp.1.5.2 csv.2.4 ctypes.0.23.0 ctypes-foreign.0.23.0 curl.0.10.0 dune.3.19.1 dune-configurator.3.19.1 fieldslib.v0.17.0 fmt.0.10.0 integers.0.7.0 jane-street-headers.v0.17.0 jst-config.v0.17.0 logs.0.9.0 mdx.2.5.0 mtime.2.1.0 multicore-magic.2.3.1 num.1.6 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.1 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 parsexp.v0.17.0 pprint.20230830 ppx_assert.v0.17.0 ppx_base.v0.17.0 ppx_cold.v0.17.0 ppx_compare.v0.17.0 ppx_derivers.1.2.1 ppx_deriving.6.1.0 ppx_enumerate.v0.17.0 ppx_expect.v0.17.3 ppx_fields_conv.v0.17.0 ppx_globalize.v0.17.2 ppx_hash.v0.17.0 ppx_here.v0.17.0 ppx_inline_test.v0.17.1 ppx_minidebug.2.3.0 ppx_optcomp.v0.17.1 ppx_sexp_conv.v0.17.1 ppx_string.v0.17.0 ppx_variants_conv.v0.17.1 ppxlib.0.36.0 ppxlib_jane.v0.17.4 printbox.0.12 printbox-ext-plot.0.12 printbox-html.0.12 printbox-md.0.12 printbox-text.0.12 ptime.1.2.0 re.1.13.2 result.1.5 saturn_lockfree.0.5.0 seq.base sexplib.v0.17.0 sexplib0.v0.17.0 stdio.v0.17.0 stdlib-shims.0.3.0 thread-local-storage.0.2 time_now.v0.17.0 topkg.1.0.8 tyxml.4.6.0 uucp.16.0.0 uutf.1.0.4 variantslib.v0.17.0")


/src: (env CI true)


/src: (env OCAMLCI true)


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam update --depexts && opam install --cli=2.3 --depext-only -y neural_nets_lib.dev arrayjit.dev $DEPS"))
+ /usr/bin/sudo "zypper" "--non-interactive" "refresh"
- Retrieving repository 'Update repository of openSUSE Backports' metadata [.
- .
- Looking for gpg keys in repository Update repository of openSUSE Backports.
-   gpgkey=http://download.opensuse.org/update/leap/15.6/backports/repodata/repomd.xml.key
- .....
- ...done]
- Building repository 'Update repository of openSUSE Backports' cache [....done]
- Retrieving repository 'Update repository with updates from SUSE Linux Enterprise 15' metadata [.
- .
- Looking for gpg keys in repository Update repository with updates from SUSE Linux Enterprise 15.
-   gpgkey=http://download.opensuse.org/update/leap/15.6/sle/repodata/repomd.xml.key
- ......
- ..........
- ..........
- ..........
- ..........
- ..........
- .........
- ..........
- ..........
- ..........
- .........
- ..........
- ..........
- .........
- ..........
- .........
- .........done]
- Building repository 'Update repository with updates from SUSE Linux Enterprise 15' cache [..
- ..done]
- Repository 'Main Update Repository' is up to date.
- Repository 'Update Repository (Non-Oss)' is up to date.
- Repository 'Non-OSS Repository' is up to date.
- Repository 'Main Repository' is up to date.
- All repositories have been refreshed.


<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[arrayjit.dev] synchronised (file:///src)
[neural_nets_lib.dev] synchronised (file:///src)


[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).
[NOTE] Package ocaml-config is already installed (current version is 3).
[NOTE] Package ocaml-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml is already installed (current version is 5.3.0).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-nnp is already installed (current version is base).
[NOTE] Package base-effects is already installed (current version is base).
[NOTE] Package base-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).


The following system packages will first need to be installed:
libcurl-devel libffi-devel


<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>


+ /usr/bin/sudo "zypper" "--non-interactive" "install" "libcurl-devel" "libffi-devel"
- Loading repository data...
- Reading installed packages...
- Resolving package dependencies...
- 
- The following 2 NEW packages are going to be installed:
-   libcurl-devel libffi-devel
- 
- 2 new packages to install.
- 
- Package download size:   920.3 KiB
- 
- Package install size change:
-               |     856.2 KiB  required by packages that will be installed
-    856.2 KiB  |  -      0 B    released by packages that will be removed
- 
- Backend:  classic_rpmtrans
- Continue? [y/n/v/...? shows all options] (y): y
- Retrieving: libffi-devel-3.2.1.git259-10.8.x86_64 (Main Repository) (1/2),  26.7 KiB
- Retrieving: libffi-devel-3.2.1.git259-10.8.x86_64.rpm [.done]
- Retrieving: libcurl-devel-8.6.0-150600.4.21.1.x86_64 (Update repository with updates from SUSE Linux Enterprise 15) (2/2), 893.5 KiB
- Retrieving: libcurl-devel-8.6.0-150600.4.21.1.x86_64.rpm [...done (185.2 KiB/s)]
- 
- Checking for file conflicts: [..done]
- (1/2) Installing: libffi-devel-3.2.1.git259-10.8.x86_64 [..done]
- (2/2) Installing: libcurl-devel-8.6.0-150600.4.21.1.x86_64 [..
- done]
2025-07-13 09:56.45 ---> using "e778d64b93c0c08fd496792e1d698f23d680942c7e823845faa54962af05a301" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).
[NOTE] Package ocaml-config is already installed (current version is 3).
[NOTE] Package ocaml-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml is already installed (current version is 5.3.0).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-nnp is already installed (current version is base).
[NOTE] Package base-effects is already installed (current version is base).
[NOTE] Package base-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).
The following actions will be performed:
=== install 81 packages
- install angstrom                0.16.1
- install astring                 0.8.5
- install backoff                 0.1.1
- install base                    v0.17.3
- install base-bytes              base
- install bigarray-compat         1.1.0
- install bigstringaf             0.10.0
- install camlp-streams           5.0.1
- install camlzip                 1.13
- install cmdliner                1.3.0
- install conf-libcurl            2
- install conf-libffi             2.0.0
- install conf-pkg-config         4
- install conf-zlib               1
- install cppo                    1.8.0
- install csexp                   1.5.2
- install csv                     2.4
- install ctypes                  0.23.0
- install ctypes-foreign          0.23.0
- install curl                    0.10.0
- install dune                    3.19.1
- install dune-configurator       3.19.1
- install fieldslib               v0.17.0
- install fmt                     0.10.0
- install integers                0.7.0
- install jane-street-headers     v0.17.0
- install jst-config              v0.17.0
- install logs                    0.9.0
- install mdx                     2.5.0
- install mtime                   2.1.0
- install multicore-magic         2.3.1
- install num                     1.6
- install ocaml-compiler-libs     v0.17.0
- install ocaml-syntax-shims      1.0.0
- install ocaml-version           4.0.1
- install ocaml_intrinsics_kernel v0.17.1
- install ocamlbuild              0.16.1
- install ocamlfind               1.9.8
- install parsexp                 v0.17.0
- install pprint                  20230830
- install ppx_assert              v0.17.0
- install ppx_base                v0.17.0
- install ppx_cold                v0.17.0
- install ppx_compare             v0.17.0
- install ppx_derivers            1.2.1
- install ppx_deriving            6.1.0
- install ppx_enumerate           v0.17.0
- install ppx_expect              v0.17.3
- install ppx_fields_conv         v0.17.0
- install ppx_globalize           v0.17.2
- install ppx_hash                v0.17.0
- install ppx_here                v0.17.0
- install ppx_inline_test         v0.17.1
- install ppx_minidebug           2.3.0
- install ppx_optcomp             v0.17.1
- install ppx_sexp_conv           v0.17.1
- install ppx_string              v0.17.0
- install ppx_variants_conv       v0.17.1
- install ppxlib                  0.36.0
- install ppxlib_jane             v0.17.4
- install printbox                0.12
- install printbox-ext-plot       0.12
- install printbox-html           0.12
- install printbox-md             0.12
- install printbox-text           0.12
- install ptime                   1.2.0
- install re                      1.13.2
- install result                  1.5
- install saturn_lockfree         0.5.0
- install seq                     base
- install sexplib                 v0.17.0
- install sexplib0                v0.17.0
- install stdio                   v0.17.0
- install stdlib-shims            0.3.0
- install thread-local-storage    0.2
- install time_now                v0.17.0
- install topkg                   1.0.8
- install tyxml                   4.6.0
- install uucp                    16.0.0
- install uutf                    1.0.4
- install variantslib             v0.17.0


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved backoff.0.1.1  (cached)
-> retrieved astring.0.8.5  (cached)
-> retrieved angstrom.0.16.1  (cached)
-> retrieved base.v0.17.3  (cached)
-> retrieved bigarray-compat.1.1.0  (cached)
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved camlp-streams.5.0.1  (cached)
-> retrieved camlzip.1.13  (cached)
-> retrieved cmdliner.1.3.0  (cached)
-> retrieved cppo.1.8.0  (cached)
-> installed conf-libcurl.2
-> installed conf-pkg-config.4
-> retrieved csexp.1.5.2  (cached)
-> retrieved csv.2.4  (cached)
-> retrieved ctypes.0.23.0, ctypes-foreign.0.23.0  (cached)
-> installed conf-libffi.2.0.0
-> installed conf-zlib.1
-> retrieved curl.0.10.0  (cached)
-> retrieved fieldslib.v0.17.0  (cached)
-> retrieved fmt.0.10.0  (cached)
-> retrieved integers.0.7.0  (cached)
-> retrieved jane-street-headers.v0.17.0  (cached)
-> retrieved jst-config.v0.17.0  (cached)
-> retrieved logs.0.9.0  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved multicore-magic.2.3.1  (cached)
-> retrieved mdx.2.5.0  (cached)
-> retrieved num.1.6  (cached)
-> retrieved ocaml-compiler-libs.v0.17.0  (cached)
-> retrieved ocaml-syntax-shims.1.0.0  (cached)
-> retrieved ocaml-version.4.0.1  (cached)
-> retrieved ocaml_intrinsics_kernel.v0.17.1  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved parsexp.v0.17.0  (cached)
-> retrieved pprint.20230830  (cached)
-> retrieved ppx_assert.v0.17.0  (cached)
-> retrieved ppx_base.v0.17.0  (cached)
-> retrieved ppx_cold.v0.17.0  (cached)
-> retrieved dune.3.19.1, dune-configurator.3.19.1  (cached)
-> retrieved ppx_compare.v0.17.0  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppx_deriving.6.1.0  (cached)
-> retrieved ppx_enumerate.v0.17.0  (cached)
-> retrieved ppx_expect.v0.17.3  (cached)
-> retrieved ppx_fields_conv.v0.17.0  (cached)
-> retrieved ppx_globalize.v0.17.2  (cached)
-> retrieved ppx_hash.v0.17.0  (cached)
-> retrieved ppx_here.v0.17.0  (cached)
-> installed cmdliner.1.3.0
-> installed num.1.6
-> retrieved ppx_inline_test.v0.17.1  (cached)
-> retrieved ppx_minidebug.2.3.0  (cached)
-> retrieved ppx_optcomp.v0.17.1  (cached)
-> retrieved ppx_sexp_conv.v0.17.1  (cached)
-> retrieved ppx_string.v0.17.0  (cached)
-> retrieved ppx_variants_conv.v0.17.1  (cached)
-> retrieved ppxlib_jane.v0.17.4  (cached)
-> retrieved ptime.1.2.0  (cached)
-> retrieved re.1.13.2  (cached)
-> retrieved result.1.5  (cached)
-> retrieved ppxlib.0.36.0  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved printbox.0.12, printbox-ext-plot.0.12, printbox-html.0.12, printbox-md.0.12, printbox-text.0.12  (cached)
-> retrieved saturn_lockfree.0.5.0  (cached)
-> retrieved sexplib.v0.17.0  (cached)
-> retrieved sexplib0.v0.17.0  (cached)
-> retrieved stdio.v0.17.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved thread-local-storage.0.2  (cached)
-> retrieved time_now.v0.17.0  (cached)
-> retrieved topkg.1.0.8  (cached)
-> retrieved tyxml.4.6.0  (cached)
-> retrieved uutf.1.0.4  (cached)
-> retrieved variantslib.v0.17.0  (cached)
-> retrieved uucp.16.0.0  (cached)
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed camlzip.1.13
-> installed ocamlbuild.0.16.1
-> installed topkg.1.0.8
-> installed uutf.1.0.4
-> installed mtime.2.1.0
-> installed fmt.0.10.0
-> installed ptime.1.2.0
-> installed astring.0.8.5
-> installed logs.0.9.0
-> installed dune.3.19.1
-> installed jane-street-headers.v0.17.0
-> installed ppx_derivers.1.2.1
-> installed csexp.1.5.2
-> installed backoff.0.1.1
-> installed bigarray-compat.1.1.0
-> installed camlp-streams.5.0.1
-> installed cppo.1.8.0
-> installed csv.2.4
-> installed multicore-magic.2.3.1
-> installed ocaml-compiler-libs.v0.17.0
-> installed ocaml-syntax-shims.1.0.0
-> installed ocaml-version.4.0.1
-> installed ocaml_intrinsics_kernel.v0.17.1
-> installed pprint.20230830
-> installed printbox.0.12
-> installed re.1.13.2
-> installed result.1.5
-> installed sexplib0.v0.17.0
-> installed stdlib-shims.0.3.0
-> installed thread-local-storage.0.2
-> installed saturn_lockfree.0.5.0
-> installed integers.0.7.0
-> installed parsexp.v0.17.0
-> installed dune-configurator.3.19.1
-> installed bigstringaf.0.10.0
-> installed mdx.2.5.0
-> installed sexplib.v0.17.0
-> installed angstrom.0.16.1
-> installed tyxml.4.6.0
-> installed printbox-html.0.12
-> installed curl.0.10.0
-> installed ctypes.0.23.0
-> installed base.v0.17.3
-> installed fieldslib.v0.17.0
-> installed variantslib.v0.17.0
-> installed stdio.v0.17.0
-> installed ctypes-foreign.0.23.0
-> installed uucp.16.0.0
-> installed printbox-text.0.12
-> installed printbox-md.0.12
-> installed printbox-ext-plot.0.12
-> installed ppxlib.0.36.0
-> installed ppx_optcomp.v0.17.1
-> installed ppxlib_jane.v0.17.4
-> installed ppx_cold.v0.17.0
-> installed ppx_here.v0.17.0
-> installed ppx_variants_conv.v0.17.1
-> installed ppx_fields_conv.v0.17.0
-> installed ppx_globalize.v0.17.2
-> installed ppx_enumerate.v0.17.0
-> installed ppx_deriving.6.1.0
-> installed ppx_compare.v0.17.0
-> installed ppx_sexp_conv.v0.17.1
-> installed ppx_hash.v0.17.0
-> installed ppx_assert.v0.17.0
-> installed ppx_minidebug.2.3.0
-> installed ppx_base.v0.17.0
-> installed jst-config.v0.17.0
-> installed ppx_string.v0.17.0
-> installed time_now.v0.17.0
-> installed ppx_inline_test.v0.17.1
-> installed ppx_expect.v0.17.3
Done.
# To update the current shell environment, run: eval $(opam env)
2025-07-13 09:56.46 ---> using "fe3b35a174009406c0e84c7b6730d426b586f082e33b5c9fa23d410d261a6f3f" from cache


/src: (copy (src .) (dst /src))
2025-07-13 09:56.46 ---> saved as "9c754c685811c1205c8a1d499659edc17c17390a3d5804ae925e63ef817aa122"


/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
File "arrayjit/test/dune", line 6, characters 16-24:
6 |   (pps ppx_here ppx_jane)))
^^^^^^^^
Error: Library "ppx_jane" not found.
-> required by
_build/default/arrayjit/test/.merlin-conf/exe-test_numerical_types
-> required by alias arrayjit/test/check
(cd _build/default/test/operations/config && ../../../arrayjit/bin/read_config.exe --read=backend)


Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test/operations/config/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
Wrote value of 'backend' to ocannl_backend.txt
File "test/ppx/test_ppx_op_expected.ml", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/ppx/test_ppx_op_expected.ml _build/default/test/ppx/test_ppx_op_actual.ml
diff --git a/_build/default/test/ppx/test_ppx_op_expected.ml b/_build/default/test/ppx/test_ppx_op_actual.ml
index a6aa4ae..c971ef0 100644
--- a/_build/default/test/ppx/test_ppx_op_expected.ml
+++ b/_build/default/test/ppx/test_ppx_op_actual.ml
@@ -2,20 +2,20 @@ open Base
open Ocannl
module TDSL = Operation.TDSL
let y0 =
-  let hey1 = TDSL.param ?values:None "hey1" in
+  let hey1 = TDSL.param ?value:None "hey1" in
let open! TDSL.O in
((+) ?label:(Some ["y0"]))
((( *. ) ?label:None) (TDSL.number (Float.of_int 2)) hey1)
(TDSL.number (Float.of_int 3))
let y1 =
-  let hey2 = TDSL.param ?values:None "hey2" in
+  let hey2 = TDSL.param ?value:None "hey2" in
let open! TDSL.O in
fun x ->
((+) ?label:(Some
(List.concat [["y1"]; (x.Tensor.value).Ir.Tnode.label])))
((( * ) ?label:None) hey2 (TDSL.number (Float.of_int 2))) x
let y2 =
-  let hey3 = TDSL.param ?values:None "hey3" in
+  let hey3 = TDSL.param ?value:None "hey3" in
let open! TDSL.O in
fun x1 x2 ->
((+) ?label:(Some
@@ -36,14 +36,14 @@ let b =
~output_dims:[2]
[|(Float.of_int 7);(Float.of_int 8);(Float.of_int 9);(Float.of_int 10)|]
let y =
-  let hey4 = TDSL.param ?values:None "hey4" in
+  let hey4 = TDSL.param ?value:None "hey4" in
let open! TDSL.O in
((+) ?label:(Some ["y"]))
((( * ) ?label:None) hey4 (TDSL.number ?label:None ~axis_label:"q" 2.0))
(TDSL.number ?label:None ~axis_label:"p" 1.0)
let z =
-  let hey5 = TDSL.param ?values:None "hey5"
-  and hey6 = TDSL.param ?values:None "hey6" in
+  let hey5 = TDSL.param ?value:None "hey5"
+  and hey6 = TDSL.param ?value:None "hey6" in
let open! TDSL.O in
((+) ?label:(Some ["z"]))
((( * ) ?label:None) (TDSL.number ?label:None ~axis_label:"q" 2.0) hey5)
@@ -51,8 +51,8 @@ let z =
let stride = 2
and dilation = 3
let z2 =
-  let hey7 = TDSL.param ?values:None "hey7"
-  and hey8 = TDSL.param ?values:None "hey8" in
+  let hey7 = TDSL.param ?value:None "hey7"
+  and hey8 = TDSL.param ?value:None "hey8" in
let open! TDSL.O in
TDSL.einsum ?label:(Some ["z2"])
(String.concat ~sep:""
@@ -61,8 +61,8 @@ let z2 =
let z3 =
let s = 2
and d = 3 in
-  let hey10 = TDSL.param ?values:None "hey10"
-  and hey9 = TDSL.param ?values:None "hey9" in
+  let hey10 = TDSL.param ?value:None "hey10"
+  and hey9 = TDSL.param ?value:None "hey9" in
let open! TDSL.O in
TDSL.einsum ?label:(Some [])
(String.concat ~sep:""
@@ -78,7 +78,7 @@ let mlp_layer =
let b =
(TDSL.param ~more_label:(config.label)) ~output_dims:[config.hid_dim]
"b"
-      and w = (TDSL.param ~more_label:(config.label)) ?values:None "w" in
+      and w = (TDSL.param ~more_label:(config.label)) ?value:None "w" in
fun x ->
(relu
?label:(Some
File "test/einsum/test_print_style.expected", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/einsum/test_print_style.expected _build/default/test/einsum/test_print_style.exe.output
diff --git a/_build/default/test/einsum/test_print_style.expected b/_build/default/test/einsum/test_print_style.exe.output
index e51ab37..80ff444 100644
--- a/_build/default/test/einsum/test_print_style.expected
+++ b/_build/default/test/einsum/test_print_style.exe.output
@@ -1,5 +1,5 @@


-Welcome to OCANNL! Reading configuration defaults from /Users/lukstafi/ocannl/_build/default/test/ocannl_config.
+Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test/einsum/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
Testing print_style functionality:
File "test/einsum/test_conv_syntax.expected", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/einsum/test_conv_syntax.expected _build/default/test/einsum/test_conv_syntax.exe.output
diff --git a/_build/default/test/einsum/test_conv_syntax.expected b/_build/default/test/einsum/test_conv_syntax.exe.output
index 7098c49..02f1b08 100644
--- a/_build/default/test/einsum/test_conv_syntax.expected
+++ b/_build/default/test/einsum/test_conv_syntax.exe.output
@@ -1,5 +1,5 @@


-Welcome to OCANNL! Reading configuration defaults from /Users/lukstafi/ocannl/_build/default/test/einsum/ocannl_config.
+Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test/einsum/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
Testing conv syntax parsing...
(cd _build/default/test/ppx && ./test_ppx_op.exe)


Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test/ppx/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/default/test/ppx && ./test_ppx_op_expected.exe)


Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test/ppx/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations && .operations_tutorials.inline-tests/inline-test-runner.exe inline-test-runner operations_tutorials -partition '' -source-tree-root ../.. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations && .operations_tutorials.inline-tests/inline-test-runner.exe inline-test-runner operations_tutorials -partition 'Retrieving commandline, environment, or config file variable ocannl_log_level' -source-tree-root ../.. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations && .operations_tutorials.inline-tests/inline-test-runner.exe inline-test-runner operations_tutorials -partition 'Found 0, in the config file' -source-tree-root ../.. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations && .operations_tutorials.inline-tests/inline-test-runner.exe inline-test-runner operations_tutorials -partition 'Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/728a9a20206ea0b786fe53cdd16c7ce6/default/test/operations/ocannl_config.' -source-tree-root ../.. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum && .einsum_tutorials.inline-tests/inline-test-runner.exe inline-test-runner einsum_tutorials -partition 'Found 0, in the config file' -source-tree-root ../.. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum && .einsum_tutorials.inline-tests/inline-test-runner.exe inline-test-runner einsum_tutorials -partition '' -source-tree-root ../.. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum && .einsum_tutorials.inline-tests/inline-test-runner.exe inline-test-runner einsum_tutorials -partition 'Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/807e3cf0ac98e58028c2b674928b9be7/default/test/einsum/ocannl_config.' -source-tree-root ../.. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum && .einsum_tutorials.inline-tests/inline-test-runner.exe inline-test-runner einsum_tutorials -partition 'Retrieving commandline, environment, or config file variable ocannl_log_level' -source-tree-root ../.. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
File "test/operations/dune", lines 19-29, characters 0-281:
19 | (rule
20 |  (alias runtest)
21 |  (target
22 |   (dir log_files))
23 |  (action
24 |   (run
25 |    %{dep:micrograd_demo_logging.exe}
26 |    "--ocannl_debug_backend=text"
27 |    "--ocannl_log_file_stem=micrograd_demo_logging"
28 |    "--ocannl_log_main_domain_to_stdout=false"
29 |    "--ocannl_debug_log_to_stream_files=true")))
(cd _build/default/test/operations && ./micrograd_demo_logging.exe --ocannl_debug_backend=text --ocannl_log_file_stem=micrograd_demo_logging --ocannl_log_main_domain_to_stdout=false --ocannl_debug_log_to_stream_files=true)


Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test/operations/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
Retrieving commandline, environment, or config file variable ocannl_backend
Found multicore_cc, in the config file
Retrieving commandline, environment, or config file variable ocannl_limit_constant_fill_size
Not found, using default 256
Retrieving commandline, environment, or config file variable ocannl_cd_ident_style
Not found, using default heuristic
Retrieving commandline, environment, or config file variable ocannl_ll_ident_style
Not found, using default heuristic
Retrieving commandline, environment, or config file variable ocannl_prefer_backend_uniformity
Found true, in the config file
Retrieving commandline, environment, or config file variable ocannl_debug_log_to_stream_files
Found true, commandline --ocannl_debug_log_to_stream_files=true
Retrieving commandline, environment, or config file variable ocannl_cc_backend_optimization_level
Not found, using default 3
Retrieving commandline, environment, or config file variable ocannl_cc_backend_compiler_command
Not found, using default gcc
Retrieving commandline, environment, or config file variable ocannl_cc_backend_verify_codesign
Not found, using default false
Fatal error: exception File "src/printbox-text/PrintBox_text.ml", line 212, characters 6-12: Assertion failed
Raised at PrintBox_text.Output.Make_out.to_buf_aux_ in file "src/printbox-text/PrintBox_text.ml", line 212, characters 6-50
Called from Stdlib__Map.Make.fold in file "map.ml", line 329, characters 19-42
Called from Stdlib__Map.Make.fold in file "map.ml", line 329, characters 26-41
Called from Stdlib__Map.Make.fold in file "map.ml", line 329, characters 26-41
Called from Stdlib__Map.Make.fold in file "map.ml", line 329, characters 26-41
Called from PrintBox_text.Output.Make_out.render in file "src/printbox-text/PrintBox_text.ml", line 242, characters 14-64
Called from PrintBox_text.output in file "src/printbox-text/PrintBox_text.ml", line 851, characters 2-31
Called from Minidebug_runtime.PrintBox.output_box in file "minidebug_runtime.ml", line 1527, characters 19-59
Called from Minidebug_runtime.PrintBox.close_log_impl.close_tree in file "minidebug_runtime.ml", line 1572, characters 6-38
Called from Backends.Add_buffer_retrieval_and_syncing.sync_routine in file "arrayjit/lib/backends.ml", lines 207-235, characters 31-82
Called from Backends.Raise_backend.link in file "arrayjit/lib/backends.ml", lines 539-540, characters 4-92
Re-raised at Backends.Raise_backend.link in file "arrayjit/lib/backends.ml", lines 526-540, characters 23-92
Called from Dune__exe__Micrograd_demo_logging in file "test/operations/micrograd_demo_logging.ml", line 36, characters 13-76
(cd _build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations && .operations_tutorials.inline-tests/inline-test-runner.exe inline-test-runner operations_tutorials -partition zero2hero_1of7.ml -source-tree-root ../.. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations && .operations_tutorials.inline-tests/inline-test-runner.exe inline-test-runner operations_tutorials -partition primitive_ops.ml -source-tree-root ../.. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations && .operations_tutorials.inline-tests/inline-test-runner.exe inline-test-runner operations_tutorials -partition hello_world_op.ml -source-tree-root ../.. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
File "test/einsum/einsum_trivia_exec.expected", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/einsum/einsum_trivia_exec.expected _build/default/test/einsum/einsum_trivia_exec.exe.output
diff --git a/_build/default/test/einsum/einsum_trivia_exec.expected b/_build/default/test/einsum/einsum_trivia_exec.exe.output
index ab456b5..20cb345 100644
--- a/_build/default/test/einsum/einsum_trivia_exec.expected
+++ b/_build/default/test/einsum/einsum_trivia_exec.exe.output
@@ -1,9 +1,8 @@


-Welcome to OCANNL! Reading configuration defaults from /Users/lukstafi/ocannl/_build/default/test/einsum/ocannl_config.
+Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test/einsum/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
HERE: test/einsum/einsum_trivia_exec.ml:31:21
-[0]: r2x4x3 shape 0:2|2:3->1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:32:21
┌───────────────────────────────────────────────────────────────────────────┐
│[1]: =>_ho shape 0:4|2:2->1:3                                              │
│┌──────┬───────────────┬───────────────┬───────────────┬──────────────────┐│
@@ -17,8 +16,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:31:21
└───────────────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:38:21
-[2]: r2x3x6x7x4x5 shape 0:2,1:3|4:4,5:5->2:6,3:7  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:39:21
+HERE: test/einsum/einsum_trivia_exec.ml:37:21
┌────────────────────────────────────────────────────────────────────────────────────────────┐
│[3]: =>_ho2 shape 0:4,1:7|4:2,5:6->2:5,3:3                                                  │
│┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
@@ -125,10 +123,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:38:21
└────────────────────────────────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:44:21
-[4]: r3x2x4 shape 0:3|2:4->1:2  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:45:21
-[5]: r3x4x1 shape 0:3|2:1->1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:46:21
-[5]: r3x4x1 shape 0:3|2:1->1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:47:21
+HERE: test/einsum/einsum_trivia_exec.ml:42:21
┌─────────────────────────────────────────────┐
│[6]: ;=>_c shape 0:3|1:4                     │
│┌──────┬────────────────────────────────────┐│
@@ -141,8 +136,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:44:21
└─────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:66:21
-[0]: r2x4x3 shape 0:2|2:3->1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:67:21
+HERE: test/einsum/einsum_trivia_exec.ml:61:21
┌────────────────────────────────────┐
│[1]: =>_ho shape 0:2|1:3            │
│┌──────┬───────────────────────────┐│
@@ -154,7 +148,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:66:21
└────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:75:21
+HERE: test/einsum/einsum_trivia_exec.ml:69:21
┌────────────────────────────────────────────────────────────────────────────────────┐
│[3]: =>_ho2 shape 0:4|2:2->1:5                                                      │
│┌──────┬──────────────────┬──────────────────┬──────────────────┬──────────────────┐│
@@ -170,9 +164,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:75:21
└────────────────────────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:95:21
-[0]: r2 shape 0:2  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:96:21
-[1]: r3 shape 0:3  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:97:21
+HERE: test/einsum/einsum_trivia_exec.ml:89:21
┌──────────────────────────┐
│[4]: ;=>_c shape 1:2->0:3 │
│┌──────┬────────────┐     │
@@ -185,9 +177,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:95:21
└──────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:102:21
-[5]: r2x4x3 shape 0:2|2:3->1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:103:21
-[6]: r5x7x6 shape 0:5|2:6->1:7  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:104:21
+HERE: test/einsum/einsum_trivia_exec.ml:94:21
┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[7]: ;=>_c shape 0:2,1:5|4:3,5:6->2:4,3:7                                                                                             │
│┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
@@ -337,7 +327,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:102:21
└──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:132:21
+HERE: test/einsum/einsum_trivia_exec.ml:122:21
┌────────────────────────────────────────────────────────────────┐
│[2]: ;=>_a2 shape 0:2|2:3->1:4                                  │
│┌──────┬───────────────────────────┬───────────────────────────┐│
@@ -352,7 +342,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:132:21
└────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:133:21
+HERE: test/einsum/einsum_trivia_exec.ml:123:21
┌────────────────────────────────────────────────────────────────┐
│[3]: ;=>_c shape 0:2|2:3->1:5                                   │
│┌──────┬───────────────────────────┬───────────────────────────┐│
@@ -368,7 +358,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:133:21
└────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:134:21
+HERE: test/einsum/einsum_trivia_exec.ml:124:21
┌────────────────────────────────────────────────────────────────┐
│[4]: ;=>_d shape 0:2,1:2|3:3->2:5                               │
│┌──────┬───────────────────────────┬───────────────────────────┐│
@@ -390,7 +380,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:134:21
└────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:135:21
+HERE: test/einsum/einsum_trivia_exec.ml:125:21
┌────────────────────────────────────┐
│[5]: ;=>_e shape 1:3->0:5           │
│┌──────┬───────────────────────────┐│
@@ -405,7 +395,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:135:21
└────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:136:21
+HERE: test/einsum/einsum_trivia_exec.ml:126:21
┌────────────────────────────────────┐
│[6]: ;=>_f shape 1:3->0:5           │
│┌──────┬───────────────────────────┐│
@@ -420,8 +410,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:136:21
└────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:155:21
-[0]: r2x4x3 shape 0:2|2:3->1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:156:21
+HERE: test/einsum/einsum_trivia_exec.ml:145:21
┌─────────────────────────────────────────────────────────────────────────┐
│[1]: =>_ho shape 0:2|2:4->1:3                                            │
│┌──────┬───────────────────────────┬────────────────────────────────────┐│
@@ -435,7 +424,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:155:21
└─────────────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:159:21
+HERE: test/einsum/einsum_trivia_exec.ml:148:21
┌────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[2]: =>_ho2 shape 0:4|2:3->1:2                                                                                          │
│┌──────┬───────────────────────────┬───────────────────────────┬───────────────────────────┬───────────────────────────┐│
@@ -448,8 +437,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:159:21
└────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:166:21
-[3]: r2x3x6x7x4x5 shape 0:2,1:3|4:4,5:5->2:6,3:7  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:167:21
+HERE: test/einsum/einsum_trivia_exec.ml:155:21
┌────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[4]: =>_ho3 shape 0:2,1:5|4:4,5:7->2:6,3:3                                                                                                                                      │
│┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
@@ -574,7 +562,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:166:21
└────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:171:21
+HERE: test/einsum/einsum_trivia_exec.ml:159:21
┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[5]: =>_ho4 shape 0:5|2:7->1:3                                                                                                                                                                                            │
│┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
@@ -588,8 +576,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:171:21
└──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:174:21
-[0]: r2x4x3 shape 0:2|2:3->1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:175:21
+HERE: test/einsum/einsum_trivia_exec.ml:162:21
┌───────────────────────────────────────┐
│[6]: =>_ho5 shape 0:4                  │
│┌┬────────────────────────────────────┐│
@@ -600,8 +587,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:174:21
└───────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:179:21
-[7]: r3x4 shape 0:3,1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:180:21
+HERE: test/einsum/einsum_trivia_exec.ml:166:21
┌───────────────────────────────────────┐
│[8]: =>_ho6 shape 0:4                  │
│┌┬────────────────────────────────────┐│
@@ -612,8 +598,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:179:21
└───────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:185:21
-[9]: r3x4x2 shape 2:2->0:3,1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:186:21
+HERE: test/einsum/einsum_trivia_exec.ml:171:21
┌─────────────────────────────────────────────┐
│[10]: =>_ho7 shape 0:3,1:2,2:4               │
│┌──────┬────────────────────────────────────┐│
@@ -631,9 +616,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:185:21
└─────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:206:21
-[0]: r3x2x4 shape 0:3|2:4->1:2  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:207:21
-[1]: r3x4x1 shape 0:3|2:1->1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:208:21
+HERE: test/einsum/einsum_trivia_exec.ml:191:21
┌─────────────────────────────────────────────┐
│[2]: ;=>_c shape 0:3|1:4                     │
│┌──────┬────────────────────────────────────┐│
@@ -646,9 +629,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:206:21
└─────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:214:21
-[3]: r3x2 shape 1:2->0:3  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:215:21
-[4]: r3x4 shape 1:4->0:3  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:216:21
+HERE: test/einsum/einsum_trivia_exec.ml:197:21
┌─────────────────────────────────────────────┐
│[5]: ;=>_f shape 0:3,1:2,2:4                 │
│┌──────┬────────────────────────────────────┐│
@@ -666,8 +647,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:214:21
└─────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:235:21
-[0]: r2x4x3 shape 0:2|2:3->1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:236:21
+HERE: test/einsum/einsum_trivia_exec.ml:216:21
┌─────────────────────────────────────────────┐
│[1]: =>_ho shape 0:2|1:4                     │
│┌──────┬────────────────────────────────────┐│
@@ -679,8 +659,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:235:21
└─────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:239:21
-[0]: r2x4x3 shape 0:2|2:3->1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:240:21
+HERE: test/einsum/einsum_trivia_exec.ml:219:21
┌────────────────────────────────────────────────────────────────┐
│[2]: =>_ho2 shape 0:2|2:3->1:1                                  │
│┌──────┬───────────────────────────┬───────────────────────────┐│
@@ -692,8 +671,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:239:21
└────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:245:21
-[3]: r3x2 shape 1:2->0:3  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:246:21
+HERE: test/einsum/einsum_trivia_exec.ml:224:21
┌──────────────────────┐
│[4]: =>_ho3 shape 0:1 │
│┌┬─────────┐          │
@@ -704,7 +682,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:245:21
└──────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:249:21
+HERE: test/einsum/einsum_trivia_exec.ml:227:21
┌──────────────────────────────┐
│[5]: =>_ho4 shape 0:2,1:1,2:3 │
│┌──────┬──────────────────┐   │
@@ -719,9 +697,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:249:21
└──────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:269:21
-[0]: r3x2x4 shape 0:3|2:4->1:2  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:270:21
-[1]: r3x4x1 shape 0:3|2:1->1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:271:21
+HERE: test/einsum/einsum_trivia_exec.ml:247:21
┌─────────────────────────────────────────────┐
│[2]: ;=>_c shape 0:3|1:4                     │
│┌──────┬────────────────────────────────────┐│
@@ -734,179 +710,177 @@ HERE: test/einsum/einsum_trivia_exec.ml:269:21
└─────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:298:21
-┌────────────────────────────────┐
-│[9]: ;=>+ shape 0:4,1:5,2:6,3:3 │
-│┌──────┬──────────────────┐     │
-││0 @ 0 │axis 3            │     │
-│├──────┼──────────────────┤     │
-││0 @ 1 │ 0.00  0.00  0.00 │     │
-││axis 2│ 0.00  0.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 0.00  0.00  4.00 │     │
-││      │ 0.00  0.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││1 @ 1 │ 0.00  1.00  0.00 │     │
-││axis 2│ 0.00  1.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 0.00  1.00  4.00 │     │
-││      │ 0.00  1.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││2 @ 1 │ 0.00  2.00  0.00 │     │
-││axis 2│ 0.00  2.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 0.00  2.00  4.00 │     │
-││      │ 0.00  2.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││3 @ 1 │ 0.00  3.00  0.00 │     │
-││axis 2│ 0.00  3.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 0.00  3.00  4.00 │     │
-││      │ 0.00  3.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││4 @ 1 │ 0.00  4.00  0.00 │     │
-││axis 2│ 0.00  4.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 0.00  4.00  4.00 │     │
-││      │ 0.00  4.00  5.00 │     │
-│└──────┴──────────────────┘     │
-├────────────────────────────────┤
-│┌──────┬──────────────────┐     │
-││1 @ 0 │axis 3            │     │
-│├──────┼──────────────────┤     │
-││0 @ 1 │ 1.00  0.00  0.00 │     │
-││axis 2│ 1.00  0.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 1.00  0.00  4.00 │     │
-││      │ 1.00  0.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││1 @ 1 │ 1.00  1.00  0.00 │     │
-││axis 2│ 1.00  1.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 1.00  1.00  4.00 │     │
-││      │ 1.00  1.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││2 @ 1 │ 1.00  2.00  0.00 │     │
-││axis 2│ 1.00  2.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 1.00  2.00  4.00 │     │
-││      │ 1.00  2.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││3 @ 1 │ 1.00  3.00  0.00 │     │
-││axis 2│ 1.00  3.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 1.00  3.00  4.00 │     │
-││      │ 1.00  3.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││4 @ 1 │ 1.00  4.00  0.00 │     │
-││axis 2│ 1.00  4.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 1.00  4.00  4.00 │     │
-││      │ 1.00  4.00  5.00 │     │
-│└──────┴──────────────────┘     │
-├────────────────────────────────┤
-│┌──────┬──────────────────┐     │
-││2 @ 0 │axis 3            │     │
-│├──────┼──────────────────┤     │
-││0 @ 1 │ 2.00  0.00  0.00 │     │
-││axis 2│ 2.00  0.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 2.00  0.00  4.00 │     │
-││      │ 2.00  0.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││1 @ 1 │ 2.00  1.00  0.00 │     │
-││axis 2│ 2.00  1.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 2.00  1.00  4.00 │     │
-││      │ 2.00  1.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││2 @ 1 │ 2.00  2.00  0.00 │     │
-││axis 2│ 2.00  2.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 2.00  2.00  4.00 │     │
-││      │ 2.00  2.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││3 @ 1 │ 2.00  3.00  0.00 │     │
-││axis 2│ 2.00  3.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 2.00  3.00  4.00 │     │
-││      │ 2.00  3.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││4 @ 1 │ 2.00  4.00  0.00 │     │
-││axis 2│ 2.00  4.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 2.00  4.00  4.00 │     │
-││      │ 2.00  4.00  5.00 │     │
-│└──────┴──────────────────┘     │
-├────────────────────────────────┤
-│┌──────┬──────────────────┐     │
-││3 @ 0 │axis 3            │     │
-│├──────┼──────────────────┤     │
-││0 @ 1 │ 3.00  0.00  0.00 │     │
-││axis 2│ 3.00  0.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 3.00  0.00  4.00 │     │
-││      │ 3.00  0.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││1 @ 1 │ 3.00  1.00  0.00 │     │
-││axis 2│ 3.00  1.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 3.00  1.00  4.00 │     │
-││      │ 3.00  1.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││2 @ 1 │ 3.00  2.00  0.00 │     │
-││axis 2│ 3.00  2.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 3.00  2.00  4.00 │     │
-││      │ 3.00  2.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││3 @ 1 │ 3.00  3.00  0.00 │     │
-││axis 2│ 3.00  3.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 3.00  3.00  4.00 │     │
-││      │ 3.00  3.00  5.00 │     │
-│├──────┼──────────────────┤     │
-││4 @ 1 │ 3.00  4.00  0.00 │     │
-││axis 2│ 3.00  4.00  1.00 │     │
-││      │ ...   ...   ...  │     │
-││      │ 3.00  4.00  4.00 │     │
-││      │ 3.00  4.00  5.00 │     │
-│└──────┴──────────────────┘     │
-└────────────────────────────────┘
+HERE: test/einsum/einsum_trivia_exec.ml:274:21
+┌───────────────────────────────────┐
+│[9]: ;=>+ shape 0:4,1:5,2:6,3:3    │
+│┌──────┬──────────────────────────┐│
+││0 @ 0 │axis 3                    ││
+│├──────┼──────────────────────────┤│
+││0 @ 1 │ 3.99e-32  0.00      0.00 ││
+││axis 2│ 1.99e-32  0.00      1.00 ││
+││      │ ...       ...       ...  ││
+││      │ 1.42e-13  4.51e-41  4.00 ││
+││      │ 1.99e-32  1.42e-13  5.00 ││
+│├──────┼──────────────────────────┤│
+││1 @ 1 │ 1.99e-32  1.00  0.00     ││
+││axis 2│ 0.00      1.00  1.00     ││
+││      │ ...       ...   ...      ││
+││      │ 1.42e-13  1.00  4.00     ││
+││      │ 0.00      1.00  5.00     ││
+│├──────┼──────────────────────────┤│
+││2 @ 1 │ 1.99e-32  2.00  0.00     ││
+││axis 2│ 0.00      2.00  1.00     ││
+││      │ ...       ...   ...      ││
+││      │ 1.42e-13  2.00  4.00     ││
+││      │ 0.00      2.00  5.00     ││
+│├──────┼──────────────────────────┤│
+││3 @ 1 │ 1.99e-32  3.00  0.00     ││
+││axis 2│ 0.00      3.00  1.00     ││
+││      │ ...       ...   ...      ││
+││      │ 1.42e-13  3.00  4.00     ││
+││      │ 0.00      3.00  5.00     ││
+│├──────┼──────────────────────────┤│
+││4 @ 1 │ 2.36e-24  4.00  2.80e-33 ││
+││axis 2│ 2.36e-24  4.00  1.00     ││
+││      │ ...       ...   ...      ││
+││      │ 1.42e-13  4.00  4.00     ││
+││      │ 2.36e-24  4.00  5.00     ││
+│└──────┴──────────────────────────┘│
+├───────────────────────────────────┤
+│┌──────┬──────────────────────┐    │
+││1 @ 0 │axis 3                │    │
+│├──────┼──────────────────────┤    │
+││0 @ 1 │ 1.00  0.00      0.00 │    │
+││axis 2│ 1.00  0.00      1.00 │    │
+││      │ ...   ...       ...  │    │
+││      │ 1.00  4.51e-41  4.00 │    │
+││      │ 1.00  1.42e-13  5.00 │    │
+│├──────┼──────────────────────┤    │
+││1 @ 1 │ 1.00  1.00  0.00     │    │
+││axis 2│ 1.00  1.00  1.00     │    │
+││      │ ...   ...   ...      │    │
+││      │ 1.00  1.00  4.00     │    │
+││      │ 1.00  1.00  5.00     │    │
+│├──────┼──────────────────────┤    │
+││2 @ 1 │ 1.00  2.00  0.00     │    │
+││axis 2│ 1.00  2.00  1.00     │    │
+││      │ ...   ...   ...      │    │
+││      │ 1.00  2.00  4.00     │    │
+││      │ 1.00  2.00  5.00     │    │
+│├──────┼──────────────────────┤    │
+││3 @ 1 │ 1.00  3.00  0.00     │    │
+││axis 2│ 1.00  3.00  1.00     │    │
+││      │ ...   ...   ...      │    │
+││      │ 1.00  3.00  4.00     │    │
+││      │ 1.00  3.00  5.00     │    │
+│├──────┼──────────────────────┤    │
+││4 @ 1 │ 1.00  4.00  2.80e-33 │    │
+││axis 2│ 1.00  4.00  1.00     │    │
+││      │ ...   ...   ...      │    │
+││      │ 1.00  4.00  4.00     │    │
+││      │ 1.00  4.00  5.00     │    │
+│└──────┴──────────────────────┘    │
+├───────────────────────────────────┤
+│┌──────┬──────────────────────┐    │
+││2 @ 0 │axis 3                │    │
+│├──────┼──────────────────────┤    │
+││0 @ 1 │ 2.00  5.60e-45  0.00 │    │
+││axis 2│ 2.00  5.60e-45  1.00 │    │
+││      │ ...   ...       ...  │    │
+││      │ 2.00  4.51e-41  4.00 │    │
+││      │ 2.00  1.42e-13  5.00 │    │
+│├──────┼──────────────────────┤    │
+││1 @ 1 │ 2.00  1.00  0.00     │    │
+││axis 2│ 2.00  1.00  1.00     │    │
+││      │ ...   ...   ...      │    │
+││      │ 2.00  1.00  4.00     │    │
+││      │ 2.00  1.00  5.00     │    │
+│├──────┼──────────────────────┤    │
+││2 @ 1 │ 2.00  2.00  0.00     │    │
+││axis 2│ 2.00  2.00  1.00     │    │
+││      │ ...   ...   ...      │    │
+││      │ 2.00  2.00  4.00     │    │
+││      │ 2.00  2.00  5.00     │    │
+│├──────┼──────────────────────┤    │
+││3 @ 1 │ 2.00  3.00  0.00     │    │
+││axis 2│ 2.00  3.00  1.00     │    │
+││      │ ...   ...   ...      │    │
+││      │ 2.00  3.00  4.00     │    │
+││      │ 2.00  3.00  5.00     │    │
+│├──────┼──────────────────────┤    │
+││4 @ 1 │ 2.00  4.00  2.80e-33 │    │
+││axis 2│ 2.00  4.00  1.00     │    │
+││      │ ...   ...   ...      │    │
+││      │ 2.00  4.00  4.00     │    │
+││      │ 2.00  4.00  5.00     │    │
+│└──────┴──────────────────────┘    │
+├───────────────────────────────────┤
+│┌──────┬──────────────────────┐    │
+││3 @ 0 │axis 3                │    │
+│├──────┼──────────────────────┤    │
+││0 @ 1 │ 3.00  0.00      0.00 │    │
+││axis 2│ 3.00  0.00      1.00 │    │
+││      │ ...   ...       ...  │    │
+││      │ 3.00  4.51e-41  4.00 │    │
+││      │ 3.00  1.42e-13  5.00 │    │
+│├──────┼──────────────────────┤    │
+││1 @ 1 │ 3.00  1.00  0.00     │    │
+││axis 2│ 3.00  1.00  1.00     │    │
+││      │ ...   ...   ...      │    │
+││      │ 3.00  1.00  4.00     │    │
+││      │ 3.00  1.00  5.00     │    │
+│├──────┼──────────────────────┤    │
+││2 @ 1 │ 3.00  2.00  0.00     │    │
+││axis 2│ 3.00  2.00  1.00     │    │
+││      │ ...   ...   ...      │    │
+││      │ 3.00  2.00  4.00     │    │
+││      │ 3.00  2.00  5.00     │    │
+│├──────┼──────────────────────┤    │
+││3 @ 1 │ 3.00  3.00  0.00     │    │
+││axis 2│ 3.00  3.00  1.00     │    │
+││      │ ...   ...   ...      │    │
+││      │ 3.00  3.00  4.00     │    │
+││      │ 3.00  3.00  5.00     │    │
+│├──────┼──────────────────────┤    │
+││4 @ 1 │ 3.00  4.00  2.80e-33 │    │
+││axis 2│ 3.00  4.00  1.00     │    │
+││      │ ...   ...   ...      │    │
+││      │ 3.00  4.00  4.00     │    │
+││      │ 3.00  4.00  5.00     │    │
+│└──────┴──────────────────────┘    │
+└───────────────────────────────────┘
+
+
+HERE: test/einsum/einsum_trivia_exec.ml:275:21
+┌───────────────────────────────┐
+│[1]: =>_ti shape 0:4,1:3       │
+│┌──────┬──────────────────────┐│
+││      │axis 1                ││
+│├──────┼──────────────────────┤│
+││axis 0│ 0.00  0.00      0.00 ││
+││      │ 1.00  0.00      0.00 ││
+││      │ 2.00  5.60e-45  0.00 ││
+││      │ 3.00  0.00      0.00 ││
+│└──────┴──────────────────────┘│
+└───────────────────────────────┘
+
+
+HERE: test/einsum/einsum_trivia_exec.ml:276:21
+┌───────────────────────────────────┐
+│[7]: =>_tk shape 0:6,1:3           │
+│┌──────┬──────────────────────────┐│
+││      │axis 1                    ││
+│├──────┼──────────────────────────┤│
+││axis 0│ 1.99e-32  0.00      0.00 ││
+││      │ 0.00      0.00      1.00 ││
+││      │ ...       ...       ...  ││
+││      │ 1.42e-13  4.51e-41  4.00 ││
+││      │ 0.00      1.42e-13  5.00 ││
+│└──────┴──────────────────────────┘│
+└───────────────────────────────────┘


HERE: test/einsum/einsum_trivia_exec.ml:299:21
-┌───────────────────────────┐
-│[1]: =>_ti shape 0:4,1:3   │
-│┌──────┬──────────────────┐│
-││      │axis 1            ││
-│├──────┼──────────────────┤│
-││axis 0│ 0.00  0.00  0.00 ││
-││      │ 1.00  0.00  0.00 ││
-││      │ 2.00  0.00  0.00 ││
-││      │ 3.00  0.00  0.00 ││
-│└──────┴──────────────────┘│
-└───────────────────────────┘
-
-
-HERE: test/einsum/einsum_trivia_exec.ml:300:21
-┌───────────────────────────┐
-│[7]: =>_tk shape 0:6,1:3   │
-│┌──────┬──────────────────┐│
-││      │axis 1            ││
-│├──────┼──────────────────┤│
-││axis 0│ 0.00  0.00  0.00 ││
-││      │ 0.00  0.00  1.00 ││
-││      │ ...   ...   ...  ││
-││      │ 0.00  0.00  4.00 ││
-││      │ 0.00  0.00  5.00 ││
-│└──────┴──────────────────┘│
-└───────────────────────────┘
-
-
-HERE: test/einsum/einsum_trivia_exec.ml:323:21
-[0]: r3x2x4_a shape 0:3|2:4->1:2  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:324:21
-[1]: r3x4x2x3_b shape 0:3|2:2,3:3->1:4  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:325:21
┌─────────────────────────────────────────────────────────────────┐
│[2]: ;=>_c shape 0:3|1:4,2:2                                     │
│┌──────┬──────────────────┬──────────────────┬──────────────────┐│
@@ -921,9 +895,7 @@ HERE: test/einsum/einsum_trivia_exec.ml:323:21
└─────────────────────────────────────────────────────────────────┘


-HERE: test/einsum/einsum_trivia_exec.ml:344:21
-[0]: r2x2_a shape 1:2->0:2  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:345:21
-[1]: r2x2x3x4_b shape 1:2,2:3,3:4->0:2  <virtual>HERE: test/einsum/einsum_trivia_exec.ml:346:21
+HERE: test/einsum/einsum_trivia_exec.ml:318:21
┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[2]: ;=>_c shape 2:4->0:3,1:2                                                                                          │
│┌──────┬────────────────────────────────────┬────────────────────────────────────┬────────────────────────────────────┐│
File "test/operations/zero2hero_1of7.ml", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/operations/zero2hero_1of7.ml _build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/zero2hero_1of7.ml.corrected
diff --git a/_build/default/test/operations/zero2hero_1of7.ml b/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/zero2hero_1of7.ml.corrected
index 3b7cc00..2e741fa 100644
--- a/_build/default/test/operations/zero2hero_1of7.ml
+++ b/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/zero2hero_1of7.ml.corrected
@@ -30,24 +30,24 @@ let%expect_test "Graph drawing recompile" =
Tensor.print_tree ~with_grad:true ~depth:9 f_nd;
[%expect
{|
-                                 #15 +_f_nd
-                                  6.00e+1
-                                 #16 grad_+_f_nd Virt/30
-                                 <void>
-                            #13 - Virt/152                             │#2 5. Virt/40
-                            <void>                                     │<void>
-                            #14 grad_- Virt/30                         │
-                            <void>                                     │
-           #11 *. Virt/152            │       #4 *. Virt/152           │

-           <void>                     │       <void>                   │
-           #12 grad_*. Virt/30        │       #5 grad_*. Virt/30       │
-           <void>                     │       <void>                   │
-    #10 3. Virt/40│#7 **. Virt/152    │#3 4. Virt/40│#0 x              │
-    <void>        │<void>             │<void>       │ 5.00             │
-                  │#8 grad_**. Virt/30│             │#1 grad_x Local/30│
-                  │<void>             │             │<void>            │
-                  │[0]│ #6 2. Virt/40 │             │                  │
-                  │   │ <void>        │             │                  │
+                          #15 +_f_nd
+                           5.00
+                          #16 grad_+_f_nd Virt/30
+                          <void>
+                     #13 - Virt/152                      │#2 5. Virt/40
+                     <void>                              │<void>
+                     #14 grad_- Virt/30                  │
+                     <void>                              │
+           #11 *. Virt/152            │#4 *. Virt/152    │
+           <void>                     │<void>            │
+           #12 grad_*. Virt/30        │#5 grad_*. Virt/30│
+           <void>                     │<void>            │
+    #10 3. Virt/40│#7 **. Virt/152    │#3 4. Virt/40│[0] │
+    <void>        │<void>             │<void>       │    │
+                  │#8 grad_**. Virt/30│             │    │
+                  │<void>             │             │    │
+                  │[0]│ #6 2. Virt/40 │             │    │
+                  │   │ <void>        │             │    │
|}];
let%op f = (3 *. ("x" [ 5 ] **. 2)) - (4 *. x) + 5 in
Train.every_non_literal_on_host f;
@@ -55,27 +55,7 @@ let%expect_test "Graph drawing recompile" =
let f_bprop = Train.to_routine (module Backend) ctx IDX.empty f_upd in
Train.run f_bprop;
Tensor.print_tree ~with_grad:true ~depth:9 f;
-  [%expect
-    {|
-                                   #32 +_f
-                                    6.00e+1
-                                   #33 grad_+_f
-                                    1.00
-                             #30 -                              │#19 5. Virt/40
-                              5.50e+1                           │<void>
-                             #31 grad_-                         │
-                              1.00                              │
-               #28 *.                 │       #21 *.            │
-                7.50e+1               │        2.00e+1          │
-               #29 grad_*.            │       #22 grad_*.       │
-                1.00                  │        -1.00            │
-    #27 3. Virt/40│   #24 **.         │#20 4. Virt/40│#17 x     │
-    <void>        │    2.50e+1        │<void>        │ 5.00     │
-                  │   #25 grad_**.    │              │#18 grad_x│
-                  │    3.00           │              │ 2.60e+1  │
-                  │[17]│#23 2. Virt/40│              │          │
-                  │    │<void>        │              │          │
-    |}];
+  [%expect.unreachable];
let xs = Array.init 10 ~f:Float.(fun i -> of_int i - 5.) in
let ys =
Array.map xs ~f:(fun v ->
@@ -94,54 +74,21 @@ let%expect_test "Graph drawing recompile" =
[ Scatterplot { points = Array.zip_exn xs ys; content = PrintBox.line "#" } ]
in
PrintBox_text.output Stdio.stdout plot_box;
-  [%expect
-    {|
-    ┌────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 1.00e+2│#                                                                                                   │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │           #                                                                                        │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │f       │                                                                                                    │
-    │(       │                                                                                                    │
-    │x       │                                                                                                    │
-    │)       │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                      #                                                                             │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                   #│
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                 #                                                                  │
-    │        │                                                                                                    │
-    │        │                                                                                        #           │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                            #                                                       │
-    │        │                                                                             #                      │
-    │        │                                                                                                    │
-    │ 4.00   │                                                       #          #                                 │
-    ├────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │        │-5.00                                                                                           4.00│
-    │        │                                                 x                                                  │
-    └────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  ("Utils.User_error(\"The linked context lacks node x\")")
+  Raised at Backends.verify_prior_context.(fun) in file "arrayjit/lib/backends.ml", line 285, characters 11-93
+  Called from Base__Set.Accessors.iter in file "src/set.ml" (inlined), line 1193, characters 18-38
+  Called from Backends.verify_prior_context in file "arrayjit/lib/backends.ml", lines 281-285, characters 2-94
+  Re-raised at Backends.verify_prior_context in file "arrayjit/lib/backends.ml", lines 280-285, characters 37-94
+  Called from Backends.Raise_backend.link in file "arrayjit/lib/backends.ml", lines 527-528, characters 4-49
+  Re-raised at Backends.Raise_backend.link in file "arrayjit/lib/backends.ml", lines 526-540, characters 23-92
+  Called from Operations_tutorials__Zero2hero_1of7.(fun) in file "test/operations/zero2hero_1of7.ml", line 55, characters 16-69
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+  |}]


let%expect_test "Graph drawing fetch" =
Tensor.unsafe_reinitialize ();
@@ -271,96 +218,39 @@ let%expect_test "Simple gradients hosted" =
let sgd_routine = Train.to_routine (module Backend) grad_routine.context IDX.empty sgd in
(* Check out the initial state without running a forward pass. *)
Tensor.print_tree ~spy:true ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                                        #12 *._l Host&stream/41
-                                        <not-in-yet>
-                                        #13 grad_*._l Host&stream/41
-                                        <not-in-yet>
-                            #8 +_d Host&stream/41                             │#10 f Host&shared/39
-                            <not-in-yet>                                      │<not-in-yet>
-                            #9 grad_+_d Host&stream/41                        │#11 grad_f Host&stream/41
-                            <not-in-yet>                                      │<not-in-yet>
-               #4 *._e Host&stream/41                │#6 c Host&shared/39     │
-               <not-in-yet>                          │<not-in-yet>            │
-               #5 grad_*._e Host&stream/41           │#7 grad_c Host&stream/41│
-               <not-in-yet>                          │<not-in-yet>            │
-    #0 a Host&shared/39     │#2 b Host&shared/39     │                        │
-    <not-in-yet>            │<not-in-yet>            │                        │
-    #1 grad_a Host&stream/41│#3 grad_b Host&stream/41│                        │
-    <not-in-yet>            │<not-in-yet>            │                        │
-    |}];
+  [%expect.unreachable];
(* Do not update the params: all values and gradients will be at initial points, which are
specified in the tensor in the brackets. *)
Train.run grad_routine;
Tensor.print_tree ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                 #12 *._l
-                  -8.00
-                 #13 grad_*._l
-                  1.00
-             #8 +_d              │#10 f
-              4.00               │ -2.00
-             #9 grad_+_d         │#11 grad_f
-              -2.00              │ 4.00
-       #4 *._e         │#6 c     │
-        -6.00          │ 1.00e+1 │
-       #5 grad_*._e    │#7 grad_c│
-        -2.00          │ -2.00   │
-    #0 a     │#2 b     │         │
-     2.00    │ -3.00   │         │
-    #1 grad_a│#3 grad_b│         │
-     6.00    │ -4.00   │         │
-    |}];
+  [%expect.unreachable];
(* Now we update the params, but we are not doing the forward and backward passes: only params
values will change, compared to the above. The update is in the opposite direction of the
gradient. *)
Train.run sgd_routine;
Tensor.print_tree ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                 #12 *._l
-                  -8.00
-                 #13 grad_*._l
-                  1.00
-             #8 +_d              │#10 f
-              4.00               │ -2.40
-             #9 grad_+_d         │#11 grad_f
-              -2.00              │ 4.00
-       #4 *._e         │#6 c     │
-        -6.00          │ 1.02e+1 │
-       #5 grad_*._e    │#7 grad_c│
-        -2.00          │ -2.00   │
-    #0 a     │#2 b     │         │
-     1.40    │ -2.60   │         │
-    #1 grad_a│#3 grad_b│         │
-     6.00    │ -4.00   │         │
-    |}];
+  [%expect.unreachable];


(* Now the params will remain as above, but both param gradients and the values and gradients of
other nodes will change thanks to the forward and backward passes. *)
Train.run grad_routine;
Tensor.print_tree ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                 #12 *._l
-                  -1.57e+1
-                 #13 grad_*._l
-                  1.00
-             #8 +_d              │#10 f
-              6.56               │ -2.40
-             #9 grad_+_d         │#11 grad_f
-              -2.40              │ 6.56
-       #4 *._e         │#6 c     │
-        -3.64          │ 1.02e+1 │
-       #5 grad_*._e    │#7 grad_c│
-        -2.40          │ -2.40   │
-    #0 a     │#2 b     │         │
-     1.40    │ -2.60   │         │
-    #1 grad_a│#3 grad_b│         │
-     6.24    │ -3.36   │         │
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  ("Utils.User_error(\"The linked context lacks node a\")")
+  Raised at Backends.verify_prior_context.(fun) in file "arrayjit/lib/backends.ml", line 285, characters 11-93
+  Called from Base__Set.Tree0.iter.iter in file "src/set.ml", line 860, characters 8-14
+  Called from Base__Set.Accessors.iter in file "src/set.ml" (inlined), line 1193, characters 18-38
+  Called from Backends.verify_prior_context in file "arrayjit/lib/backends.ml", lines 281-285, characters 2-94
+  Re-raised at Backends.verify_prior_context in file "arrayjit/lib/backends.ml", lines 280-285, characters 37-94
+  Called from Backends.Raise_backend.link in file "arrayjit/lib/backends.ml", lines 527-528, characters 4-49
+  Re-raised at Backends.Raise_backend.link in file "arrayjit/lib/backends.ml", lines 526-540, characters 23-92
+  Called from Operations_tutorials__Zero2hero_1of7.(fun) in file "test/operations/zero2hero_1of7.ml", line 270, characters 21-73
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+  |}]


let%expect_test "Simple gradients virtual" =
Tensor.unsafe_reinitialize ();
@@ -381,68 +271,29 @@ let%expect_test "Simple gradients virtual" =
Tensor.print_tree ~spy:true ~with_grad:true ~depth:9 l;
[%expect
{|
-                                       #12 *._l Host&dev/41
-                                       <not-in-yet>
-                                       #13 grad_*._l unknown
-                                       <not-in-yet>
-                            #8 +_d unknown                              │#10 f Host-non-const/24
-                            <not-in-yet>                                │<not-in-yet>
-                            #9 grad_+_d unknown                         │#11 grad_f Material/28
-                            <not-in-yet>                                │<not-in-yet>
-                #4 *._e unknown                  │#6 c Host-non-const/24│
-                <not-in-yet>                     │<not-in-yet>          │
-                #5 grad_*._e unknown             │#7 grad_c Material/28 │
-                <not-in-yet>                     │<not-in-yet>          │
-    #0 a Host-non-const/24│#2 b Host-non-const/24│                      │
-    <not-in-yet>          │<not-in-yet>          │                      │
-    #1 grad_a Material/28 │#3 grad_b Material/28 │                      │
-    <not-in-yet>          │<not-in-yet>          │                      │
+        #12 *._l Host&dev/412
+        <not-in-yet>
+        #13 grad_*._l unknown
+        <not-in-yet>
+      #8 +_d unknown        │[10]
+      <not-in-yet>          │
+      #9 grad_+_d unknown   │
+      <not-in-yet>          │
+    #4 *._e unknown     │[6]│
+    <not-in-yet>        │   │
+    #5 grad_*._e unknown│   │
+    <not-in-yet>        │   │
+    [0]│[2]             │   │
|}];
let grad_routine = Train.to_routine (module Backend) ctx IDX.empty grad in
(* Check out the state without running a forward pass or compiling the SGD update. *)
Tensor.print_tree ~spy:true ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                                        #12 *._l Host&stream/41
-                                        <not-in-yet>
-                                        #13 grad_*._l Virt/40
-                                        <not-in-yet>
-                              #8 +_d Local/46                              │#10 f Host&shared/39
-                              <not-in-yet>                                 │<not-in-yet>
-                              #9 grad_+_d Virt/40                          │#11 grad_f Dev-stream/41
-                              <not-in-yet>                                 │<not-in-yet>
-                 #4 *._e Virt/152                  │#6 c Host&shared/39    │
-                 <not-in-yet>                      │<not-in-yet>           │
-                 #5 grad_*._e Virt/40              │#7 grad_c Dev-stream/41│
-                 <not-in-yet>                      │<not-in-yet>           │
-    #0 a Host&shared/39    │#2 b Host&shared/39    │                       │
-    <not-in-yet>           │<not-in-yet>           │                       │
-    #1 grad_a Dev-stream/41│#3 grad_b Dev-stream/41│                       │
-    <not-in-yet>           │<not-in-yet>           │                       │
-    |}];
+  [%expect.unreachable];
(* Do not update the params: all values and gradients will be at initial points, which are
specified in the tensor in the brackets. *)
Train.run grad_routine;
Tensor.print_tree ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                                         #12 *._l
-                                          -8.00
-                                         #13 grad_*._l Virt/40
-                                         <void>
-                              #8 +_d Local/46                              │#10 f
-                              <void>                                       │ -2.00
-                              #9 grad_+_d Virt/40                          │#11 grad_f Dev-stream/41
-                              <void>                                       │<void>
-                 #4 *._e Virt/152                  │#6 c                   │
-                 <void>                            │ 1.00e+1               │
-                 #5 grad_*._e Virt/40              │#7 grad_c Dev-stream/41│
-                 <void>                            │<void>                 │
-    #0 a                   │#2 b                   │                       │
-     2.00                  │ -3.00                 │                       │
-    #1 grad_a Dev-stream/41│#3 grad_b Dev-stream/41│                       │
-    <void>                 │<void>                 │                       │
-    |}];
+  [%expect.unreachable];
(* Only now compile the SGD update. *)
let sgd_routine = Train.to_routine (module Backend) grad_routine.context IDX.empty sgd in
(* Now we update the params, but are not doing the forward and backward passes: only params values
@@ -450,48 +301,28 @@ let%expect_test "Simple gradients virtual" =
always be recomputed using the latest parameter state. *)
Train.run sgd_routine;
Tensor.print_tree ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                                         #12 *._l
-                                          -8.00
-                                         #13 grad_*._l Virt/40
-                                         <void>
-                              #8 +_d Local/46                              │#10 f
-                              <void>                                       │ -2.40
-                              #9 grad_+_d Virt/40                          │#11 grad_f Dev-stream/41
-                              <void>                                       │<void>
-                 #4 *._e Virt/152                  │#6 c                   │
-                 <void>                            │ 1.02e+1               │
-                 #5 grad_*._e Virt/40              │#7 grad_c Dev-stream/41│
-                 <void>                            │<void>                 │
-    #0 a                   │#2 b                   │                       │
-     1.40                  │ -2.60                 │                       │
-    #1 grad_a Dev-stream/41│#3 grad_b Dev-stream/41│                       │
-    <void>                 │<void>                 │                       │
-    |}];
+  [%expect.unreachable];
(* Now the params will remain as above, but both param gradients and the values and gradients of
other nodes will change thanks to the forward and backward passes. *)
Train.run grad_routine;
Tensor.print_tree ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                                         #12 *._l
-                                          -1.57e+1
-                                         #13 grad_*._l Virt/40
-                                         <void>
-                              #8 +_d Local/46                              │#10 f
-                              <void>                                       │ -2.40
-                              #9 grad_+_d Virt/40                          │#11 grad_f Dev-stream/41
-                              <void>                                       │<void>
-                 #4 *._e Virt/152                  │#6 c                   │
-                 <void>                            │ 1.02e+1               │
-                 #5 grad_*._e Virt/40              │#7 grad_c Dev-stream/41│
-                 <void>                            │<void>                 │
-    #0 a                   │#2 b                   │                       │
-     1.40                  │ -2.60                 │                       │
-    #1 grad_a Dev-stream/41│#3 grad_b Dev-stream/41│                       │
-    <void>                 │<void>                 │                       │
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  ("Utils.User_error(\"The linked context lacks node a\")")
+  Raised at Backends.verify_prior_context.(fun) in file "arrayjit/lib/backends.ml", line 285, characters 11-93
+  Called from Base__Set.Tree0.iter.iter in file "src/set.ml", line 860, characters 8-14
+  Called from Base__Set.Tree0.iter.iter in file "src/set.ml", line 860, characters 8-14
+  Called from Base__Set.Accessors.iter in file "src/set.ml" (inlined), line 1193, characters 18-38
+  Called from Backends.verify_prior_context in file "arrayjit/lib/backends.ml", lines 281-285, characters 2-94
+  Re-raised at Backends.verify_prior_context in file "arrayjit/lib/backends.ml", lines 280-285, characters 37-94
+  Called from Backends.Raise_backend.link in file "arrayjit/lib/backends.ml", lines 527-528, characters 4-49
+  Re-raised at Backends.Raise_backend.link in file "arrayjit/lib/backends.ml", lines 526-540, characters 23-92
+  Called from Operations_tutorials__Zero2hero_1of7.(fun) in file "test/operations/zero2hero_1of7.ml", line 401, characters 21-73
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+  |}]


let%expect_test "tanh plot" =
Tensor.unsafe_reinitialize ();
@@ -510,21 +341,22 @@ let%expect_test "2D neuron hosted" =
let routine = Train.to_routine (module Backend) ctx IDX.empty update in
Train.run routine;
Tensor.print_tree ~with_grad:true ~depth:9 v;
-  [%expect
-    {|
-                 #8 +_v
-                  7.00e-1
-                 #9 grad_+_v
-                  1.00
-             #6 *              │#0 b
-              -6.00            │ 6.70
-             #7 grad_*         │#1 grad_b
-              1.00             │ 1.00
-    #2 w         │#4 x         │
-     -3.00  1.00 │ 2.00  0.00  │
-    #3 grad_w    │#5 grad_x    │
-     2.00  0.00  │ -3.00  1.00 │
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  ("Utils.User_error(\"The linked context lacks node b\")")
+  Raised at Backends.verify_prior_context.(fun) in file "arrayjit/lib/backends.ml", line 285, characters 11-93
+  Called from Base__Set.Tree0.iter.iter in file "src/set.ml", line 861, characters 8-11
+  Called from Base__Set.Accessors.iter in file "src/set.ml" (inlined), line 1193, characters 18-38
+  Called from Backends.verify_prior_context in file "arrayjit/lib/backends.ml", lines 281-285, characters 2-94
+  Re-raised at Backends.verify_prior_context in file "arrayjit/lib/backends.ml", lines 280-285, characters 37-94
+  Called from Backends.Raise_backend.link in file "arrayjit/lib/backends.ml", lines 527-528, characters 4-49
+  Re-raised at Backends.Raise_backend.link in file "arrayjit/lib/backends.ml", lines 526-540, characters 23-92
+  Called from Operations_tutorials__Zero2hero_1of7.(fun) in file "test/operations/zero2hero_1of7.ml", line 510, characters 16-70
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+  |}]


let%expect_test "2D neuron virtual" =
Tensor.unsafe_reinitialize ();
@@ -537,18 +369,19 @@ let%expect_test "2D neuron virtual" =
let routine = Train.to_routine (module Backend) ctx IDX.empty update in
Train.run routine;
Tensor.print_tree ~with_grad:true ~depth:9 v;
-  [%expect
-    {|
-                      #8 +_v
-                       7.00e-1
-                      #9 grad_+_v Virt/40
-                      <void>
-              #6 * Local/46              │#0 b
-              <void>                     │ 6.70
-              #7 grad_* Virt/40          │#1 grad_b Local/46
-              <void>                     │<void>
-    #2 w              │#4 x              │
-     -3.00  1.00      │ 2.00  0.00       │
-    #3 grad_w Local/46│#5 grad_x Local/46│
-    <void>            │<void>            │
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  ("Utils.User_error(\"The linked context lacks node b\")")
+  Raised at Backends.verify_prior_context.(fun) in file "arrayjit/lib/backends.ml", line 285, characters 11-93
+  Called from Base__Set.Tree0.iter.iter in file "src/set.ml", line 860, characters 8-14
+  Called from Base__Set.Accessors.iter in file "src/set.ml" (inlined), line 1193, characters 18-38
+  Called from Backends.verify_prior_context in file "arrayjit/lib/backends.ml", lines 281-285, characters 2-94
+  Re-raised at Backends.verify_prior_context in file "arrayjit/lib/backends.ml", lines 280-285, characters 37-94
+  Called from Backends.Raise_backend.link in file "arrayjit/lib/backends.ml", lines 527-528, characters 4-49
+  Re-raised at Backends.Raise_backend.link in file "arrayjit/lib/backends.ml", lines 526-540, characters 23-92
+  Called from Operations_tutorials__Zero2hero_1of7.(fun) in file "test/operations/zero2hero_1of7.ml", line 537, characters 16-70
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+  |}]
File "test/operations/primitive_ops.ml", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/operations/primitive_ops.ml _build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/primitive_ops.ml.corrected
diff --git a/_build/default/test/operations/primitive_ops.ml b/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/primitive_ops.ml.corrected
index c0aa497..0f54388 100644
--- a/_build/default/test/operations/primitive_ops.ml
+++ b/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/primitive_ops.ml.corrected
@@ -318,54 +318,129 @@ let%expect_test "sin(x)" =
let%op f x = sin x in
let plot_box = plot_unop ~f () in
PrintBox_text.output Stdio.stdout plot_box;
-  [%expect
-    {|
-    ┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 9.99e-1 │                                                                 #                                  │
-    │         │#### ##                                        *** **         ### ###                               │
-    │         │      #                                      **      **      #       #                              │
-    │         │       #                                    *          *    #         #                             │
-    │         │         #                                                 #           #                            │
-    │         │          #                                *            * #             #                           │
-    │         │                                          *              *               #                          │
-    │         │           #                            *                #*                                         │
-    │         │           #                                            #                 #                         │
-    │         │                                        *                  *                                        │
-    │         │             #                         *               #    *              #                        │
-    │         │                                                      #                     #                       │
-    │         │              #                       *                      *                                      │
-    │         │               #                                     #                       #                      │
-    │         │*                                    *                        *                                    *│
-    │         │               #                                    #                         #                     │
-    │         │ *                                  *                          *                                  * │
-    │         │                 #                                 #                           #                    │
-    │f        │  *                                *                            *                                *  │
-    │(        │                  #                              #                              #                   │
-    │x        │- *  -    -    -    -    -    -   *-    -    -    -    -    -    *    -    -    -    -    -    -*   │
-    │)        │                   #                             #                               #                  │
-    │         │   *                             *                                *                           *     │
-    │         │                    #                           #                                #                  │
-    │         │     *                          *                                  *                          *     │
-    │         │                     #                         #                                   #                │
-    │         │      *                        *                                    *                        *      │
-    │         │                      #                       #                                     #               │
-    │         │      *                       *                                      *               #      *       │
-    │         │                       #     *               #                        *                             │
-    │         │       *                #                   #                                         #    *        │
-    │         │         *                  *                                          *                  *         │
-    │         │                        #                  #                                          #             │
-    │         │          *                *              #                             *               #*          │
-    │         │           *              *                                              *              *           │
-    │         │                        *  #            #                                 *              #          │
-    │         │           *            *   #           #                                  *          *   #         │
-    │         │             *         *     #         #                                    *         *    #        │
-    │         │              **      *       #       #                                      *      **      #       │
-    │ -9.99e-1│               * *****         #######                                        **** *         ## ####│
-    ├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │         │-5.00                                                                                           5.00│
-    │         │                                                 x                                                  │
-    └─────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  "Assert_failure arrayjit/lib/c_syntax.ml:453:4"
+  Raised at Ir__C_syntax.C_syntax.pp_array_offset in file "arrayjit/lib/c_syntax.ml", line 453, characters 4-39
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 509, characters 25-53
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 479, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.pp_ll in file "arrayjit/lib/c_syntax.ml", line 480, characters 17-25
+  Called from Ir__C_syntax.C_syntax.compile_main in file "arrayjit/lib/c_syntax.ml" (inlined), line 732, characters 43-52
+  Called from Ir__C_syntax.C_syntax.compile_proc in file "arrayjit/lib/c_syntax.ml", line 855, characters 63-79
+  Called from Backends__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 137, characters 25-69
+  Called from Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 326, characters 15-45
+  Called from Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 443, characters 29-59
+  Re-raised at Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 443, characters 4-59
+  Re-raised at Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 439-447, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 354, characters 26-82
+  Called from Operations_tutorials__Primitive_ops.plot_unop in file "test/operations/primitive_ops.ml", line 35, characters 19-72
+  Called from Operations_tutorials__Primitive_ops.(fun) in file "test/operations/primitive_ops.ml", line 319, characters 17-32
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+  |}]


let%expect_test "cos(x)" =
let%op f x = cos x in
File "test/operations/hello_world_op.ml", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/operations/hello_world_op.ml _build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/hello_world_op.ml.corrected
diff --git a/_build/default/test/operations/hello_world_op.ml b/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/hello_world_op.ml.corrected
index 95901f5..48d5ca1 100644
--- a/_build/default/test/operations/hello_world_op.ml
+++ b/_build/.sandbox/3a30756fb1ae29b17c86e3f21d9c283c/default/test/operations/hello_world_op.ml.corrected
@@ -34,12 +34,13 @@ let%expect_test "Pointwise multiplication dims 1" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ y;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:34:21
┌────────────────────┐
│[3]: *._y shape 0:1 │
│┌┬─────────┐        │
│││axis 0   │        │
│├┼─────────┤        │
-    │││ 1.40e+1 │        │
+    │││ 4.15e-4 │        │
│└┴─────────┘        │
└────────────────────┘
|}]
@@ -65,25 +66,27 @@ let%expect_test "Matrix multiplication dims 1x1" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ hey;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:65:21
┌────────────────────────┐
│[0]: hey shape 1:1->0:1 │
-    │┌──────┬──────┐         │
-    ││      │axis 1│         │
-    │├──────┼──────┤         │
-    ││axis 0│ 7.00 │         │
-    │└──────┴──────┘         │
+    │┌──────┬─────────┐      │
+    ││      │axis 1   │      │
+    │├──────┼─────────┤      │
+    ││axis 0│ 2.16e-4 │      │
+    │└──────┴─────────┘      │
└────────────────────────┘
|}];
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ y;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:77:21
┌───────────────────┐
│[6]: +_y shape 0:1 │
-    │┌┬─────────┐       │
-    │││axis 0   │       │
-    │├┼─────────┤       │
-    │││ 1.50e+1 │       │
-    │└┴─────────┘       │
+    │┌┬──────┐          │
+    │││axis 0│          │
+    │├┼──────┤          │
+    │││ 1.00 │          │
+    │└┴──────┘          │
└───────────────────┘
|}]


@@ -108,7 +111,8 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Inline @@ hey;
[%expect
{|
-    [0]: [  1.00 , 2.00 , 3.00  ;  4.00 , 5.00 , 6.00  ]_hey shape 1:3->0:2  [
+    HERE: test/operations/hello_world_op.ml:108:21
+    [0]: [  0.00 , 0.00 , 0.00  ;  0.00 , 0.00 , 0.00  ]_hey shape 1:3->0:2  [
1.00 , 2.00 , 3.00
;  4.00 , 5.00 , 6.00
]
@@ -116,8 +120,9 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ hey;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:116:21
┌────────────────────────────────────────────────────────────────────────┐
-    │[0]: [  1.00 , 2.00 , 3.00  ;  4.00 , 5.00 , 6.00  ]_hey shape 1:3->0:2 │
+    │[0]: [  0.00 , 0.00 , 0.00  ;  0.00 , 0.00 , 0.00  ]_hey shape 1:3->0:2 │
│┌──────┬──────────────────┐                                             │
││      │axis 1            │                                             │
│├──────┼──────────────────┤                                             │
@@ -131,7 +136,8 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Inline @@ hoo;
[%expect
{|
-    [1]: [| [ 1.00 ; 2.00 ; 3.00 ] ; [ 4.00 ; 5.00 ; 6.00 ] |]_hoo shape 0:2|1:3  [|
+    HERE: test/operations/hello_world_op.ml:131:21
+    [1]: c2x3_hoo shape 0:2|1:3  [|
[ 1.00 ; 2.00 ; 3.00 ]
; [ 4.00 ; 5.00 ; 6.00 ]
|]
@@ -139,15 +145,16 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ hoo;
[%expect
{|
-    ┌─────────────────────────────────────────────────────────────────────────────┐
-    │[1]: [| [ 1.00 ; 2.00 ; 3.00 ] ; [ 4.00 ; 5.00 ; 6.00 ] |]_hoo shape 0:2|1:3 │
-    │┌──────┬──────────────────┐                                                  │
-    ││      │axis 1            │                                                  │
-    │├──────┼──────────────────┤                                                  │
-    ││axis 0│ 1.00  2.00  3.00 │                                                  │
-    ││      │ 4.00  5.00  6.00 │                                                  │
-    │└──────┴──────────────────┘                                                  │
-    └─────────────────────────────────────────────────────────────────────────────┘
+    HERE: test/operations/hello_world_op.ml:139:21
+    ┌────────────────────────────┐
+    │[1]: c2x3_hoo shape 0:2|1:3 │
+    │┌──────┬──────────────────┐ │
+    ││      │axis 1            │ │
+    │├──────┼──────────────────┤ │
+    ││axis 0│ 1.00  2.00  3.00 │ │
+    ││      │ 4.00  5.00  6.00 │ │
+    │└──────┴──────────────────┘ │
+    └────────────────────────────┘
|}];
let%op hey2 =
[
@@ -161,6 +168,7 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Inline @@ hey2;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:161:21
[2]: c4x2x3_hey2 shape 1:2,2:3->0:4  [
( 1.00 , 2.00 , 3.00 ) , ( 4.00 , 5.00 , 6.00 )
;  ( 7.00 , 8.00 , 9.00 ) , ( 10.00 , 11.00 , 12.00 )
@@ -171,6 +179,7 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ hey2;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:171:21
┌────────────────────────────────────────────────────────────────┐
│[2]: c4x2x3_hey2 shape 1:2,2:3->0:4                             │
│┌──────┬───────────────────────────┬───────────────────────────┐│
@@ -196,6 +205,7 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Inline @@ hoo2;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:196:21
[3]: c4x2x3_hoo2 shape 0:4|1:2,2:3  [|
[ [ 1.00 ; 2.00 ; 3.00 ] ; [ 4.00 ; 5.00 ; 6.00 ] ]
; [ [ 7.00 ; 8.00 ; 9.00 ] ; [ 10.00 ; 11.00 ; 12.00 ] ]
@@ -206,6 +216,7 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ hoo2;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:206:21
┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[3]: c4x2x3_hoo2 shape 0:4|1:2,2:3                                                                             │
│┌──────┬──────────────────┬───────────────────────────┬───────────────────────────┬───────────────────────────┐│
@@ -229,6 +240,7 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Inline @@ heyhoo;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:229:21
[4]: c4x2x3_heyhoo shape 0:4,1:2|2:3  [|
[| [ 1.00 ; 2.00 ; 3.00 ] ; [ 4.00 ; 5.00 ; 6.00 ] |]
; [| [ 7.00 ; 8.00 ; 9.00 ] ; [ 10.00 ; 11.00 ; 12.00 ] |]
@@ -239,6 +251,7 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ heyhoo;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:239:21
┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[4]: c4x2x3_heyhoo shape 0:4,1:2|2:3                                                                           │
│┌──────┬──────────────────┬───────────────────────────┬───────────────────────────┬───────────────────────────┐│
@@ -262,6 +275,7 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Inline @@ heyhoo2;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:262:21
[5]: c4x2x3x2_heyhoo2 shape 0:4,1:2|2:3,3:2  [|
[|
[ [ 1.00 ; 31.00 ] ; [ 2.00 ; 32.00 ] ; [ 3.00 ; 33.00 ] ]
@@ -284,6 +298,7 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ heyhoo2;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:284:21
┌──────────────────────────────────────────────┐
│[5]: c4x2x3x2_heyhoo2 shape 0:4,1:2|2:3,3:2   │
│┌──────┬──────────────────┬──────────────────┐│
@@ -324,6 +339,7 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Inline @@ heyhoo3;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:324:21
[6]: c2x2x2x3x2_heyhoo3 shape 0:2,1:2|2:2,3:3,4:2  [|
[|
[
@@ -350,6 +366,7 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ heyhoo3;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:350:21
┌──────────────────────────────────────────────────┐
│[6]: c2x2x2x3x2_heyhoo3 shape 0:2,1:2|2:2,3:3,4:2 │
│┌──────┬───────────────┬──────────────────┐       │
@@ -395,6 +412,7 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Inline @@ heyhoo4;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:395:21
[7]: c2x2x2x3x2_heyhoo4 shape 0:2|4:2->1:2,2:2,3:3  [|
[
[
@@ -421,6 +439,7 @@ let%expect_test "Print constant tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ heyhoo4;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:421:21
┌───────────────────────────────────────────────────┐
│[7]: c2x2x2x3x2_heyhoo4 shape 0:2|4:2->1:2,2:2,3:3 │
│┌──────┬───────────────┬──────────────────┐        │
@@ -471,28 +490,30 @@ let%expect_test "Matrix multiplication dims 2x3" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ hey;
[%expect
{|
-    ┌────────────────────────┐
-    │[0]: hey shape 1:2->0:3 │
-    │┌──────┬────────────┐   │
-    ││      │axis 1      │   │
-    │├──────┼────────────┤   │
-    ││axis 0│ 7.00  7.00 │   │
-    ││      │ 7.00  7.00 │   │
-    ││      │ 7.00  7.00 │   │
-    │└──────┴────────────┘   │
-    └────────────────────────┘
+    HERE: test/operations/hello_world_op.ml:471:21
+    ┌─────────────────────────────┐
+    │[0]: hey shape 1:2->0:3      │
+    │┌──────┬────────────────────┐│
+    ││      │axis 1              ││
+    │├──────┼────────────────────┤│
+    ││axis 0│ 1.10e-13  9.80e-45 ││
+    ││      │ 0.00      0.00     ││
+    ││      │ 0.00      0.00     ││
+    │└──────┴────────────────────┘│
+    └─────────────────────────────┘
|}];
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ y;
[%expect
{|
-    ┌──────────────────────────────┐
-    │[6]: +_y shape 0:3            │
-    │┌┬───────────────────────────┐│
-    │││axis 0                     ││
-    │├┼───────────────────────────┤│
-    │││ 3.90e+1  4.00e+1  4.10e+1 ││
-    │└┴───────────────────────────┘│
-    └──────────────────────────────┘
+    HERE: test/operations/hello_world_op.ml:485:21
+    ┌─────────────────────┐
+    │[6]: +_y shape 0:3   │
+    │┌┬──────────────────┐│
+    │││axis 0            ││
+    │├┼──────────────────┤│
+    │││ 4.00  5.00  6.00 ││
+    │└┴──────────────────┘│
+    └─────────────────────┘
|}]


let%expect_test "Big matrix" =
@@ -517,30 +538,32 @@ let%expect_test "Big matrix" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default hey;
[%expect
{|
-    ┌──────────────────────────────────────────────────┐
-    │[0]: hey shape 1:21->0:21                         │
-    │┌──────┬─────────────────────────────────────────┐│
-    ││      │axis 1                                   ││
-    │├──────┼─────────────────────────────────────────┤│
-    ││axis 0│ 5.00e-1  5.00e-1  ...  5.00e-1  5.00e-1 ││
-    ││      │ 5.00e-1  5.00e-1  ...  5.00e-1  5.00e-1 ││
-    ││      │ ...      ...      ...  ...      ...     ││
-    ││      │ 5.00e-1  5.00e-1  ...  5.00e-1  5.00e-1 ││
-    ││      │ 5.00e-1  5.00e-1  ...  5.00e-1  5.00e-1 ││
-    │└──────┴─────────────────────────────────────────┘│
-    └──────────────────────────────────────────────────┘
+    HERE: test/operations/hello_world_op.ml:517:21
+    ┌──────────────────────────────────────────────────────────┐
+    │[0]: hey shape 1:21->0:21                                 │
+    │┌──────┬─────────────────────────────────────────────────┐│
+    ││      │axis 1                                           ││
+    │├──────┼─────────────────────────────────────────────────┤│
+    ││axis 0│ -2.30e+3   4.05e-41   ...  0.00       2.18e-4   ││
+    ││      │ 0.00       -2.30e+3   ...  -2.30e+3   4.05e-41  ││
+    ││      │ ...        ...        ...  ...        ...       ││
+    ││      │ 6.48e-7    2.49e-9    ...  -1.18e+21  -2.28e-26 ││
+    ││      │ -1.36e-38  -1.18e+21  ...  -1.18e+21  -2.28e-26 ││
+    │└──────┴─────────────────────────────────────────────────┘│
+    └──────────────────────────────────────────────────────────┘
|}];
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default y;
[%expect
{|
-    ┌────────────────────────────────────────────┐
-    │[5]: + shape 0:21                           │
-    │┌┬─────────────────────────────────────────┐│
-    │││axis 0                                   ││
-    │├┼─────────────────────────────────────────┤│
-    │││ 1.05e+2  1.06e+2  ...  1.24e+2  1.25e+2 ││
-    │└┴─────────────────────────────────────────┘│
-    └────────────────────────────────────────────┘
+    HERE: test/operations/hello_world_op.ml:533:21
+    ┌──────────────────────────────────────────────────┐
+    │[5]: + shape 0:21                                 │
+    │┌┬───────────────────────────────────────────────┐│
+    │││axis 0                                         ││
+    │├┼───────────────────────────────────────────────┤│
+    │││ 6.52e+35  5.80e+35  ...  -7.13e+22  -8.30e+22 ││
+    │└┴───────────────────────────────────────────────┘│
+    └──────────────────────────────────────────────────┘
|}]


let%expect_test "Very big tensor" =
@@ -566,6 +589,7 @@ let%expect_test "Very big tensor" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default hey;
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:566:21
┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[0]: r6x10x11x7x8x9 shape 0:6|3:7,4:8,5:9->1:10,2:11                                                                                                                                   │
│┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬──────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
@@ -703,6 +727,7 @@ let%expect_test "Very big tensor" =
(* Disable line wrapping for viewing the output. In VSCode: `View: Toggle Word Wrap`. *)
[%expect
{|
+    HERE: test/operations/hello_world_op.ml:702:21
┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[6]: -_hoo shape 0:6|1:10,2:11                                                                                                                                                         │
│┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬──────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
(cd _build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum && .einsum_tutorials.inline-tests/inline-test-runner.exe inline-test-runner einsum_tutorials -partition einsum_trivia.ml -source-tree-root ../.. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
File "test/einsum/einsum_trivia.ml", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/einsum/einsum_trivia.ml _build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum/einsum_trivia.ml.corrected
diff --git a/_build/default/test/einsum/einsum_trivia.ml b/_build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum/einsum_trivia.ml.corrected
index b68c137..18a45f1 100644
--- a/_build/default/test/einsum/einsum_trivia.ml
+++ b/_build/.sandbox/29faab0b48e1da0d5d47d98d88e61418/default/test/einsum/einsum_trivia.ml.corrected
@@ -32,6 +32,7 @@ let%expect_test "einsum1 permute axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:32:21
┌───────────────────────────────────────────────────────────────────────────┐
│[1]: =>_ho shape 0:4|2:2->1:3                                              │
│┌──────┬───────────────┬───────────────┬───────────────┬──────────────────┐│
@@ -52,6 +53,7 @@ let%expect_test "einsum1 permute axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho2;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:52:21
┌────────────────────────────────────────────────────────────────────────────────────────────┐
│[3]: =>_ho2 shape 0:4,1:7|4:2,5:6->2:5,3:3                                                  │
│┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
@@ -178,6 +180,7 @@ let%expect_test "einsum1 sum out axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:178:21
┌────────────────────────────────────┐
│[1]: =>_ho shape 0:2|1:3            │
│┌──────┬───────────────────────────┐│
@@ -198,6 +201,7 @@ let%expect_test "einsum1 sum out axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho2;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:198:21
┌────────────────────────────────────────────────────────────────────────────────────┐
│[3]: =>_ho2 shape 0:4|2:2->1:5                                                      │
│┌──────┬──────────────────┬──────────────────┬──────────────────┬──────────────────┐│
@@ -234,6 +238,7 @@ let%expect_test "einsum outer product" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ c;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:234:21
┌──────────────────────────┐
│[4]: ;=>_c shape 1:2->0:3 │
│┌──────┬────────────┐     │
@@ -252,6 +257,7 @@ let%expect_test "einsum outer product" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ c;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:252:21
┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[7]: ;=>_c shape 0:2,1:5|4:3,5:6->2:4,3:7                                                                                             │
│┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
@@ -430,6 +436,7 @@ let%expect_test "einsum matrix/inner+outer products" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ a2;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:430:21
┌────────────────────────────────────────────────────────────────┐
│[2]: ;=>_a2 shape 0:2|2:3->1:4                                  │
│┌──────┬───────────────────────────┬───────────────────────────┐│
@@ -446,6 +453,7 @@ let%expect_test "einsum matrix/inner+outer products" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ c;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:446:21
┌────────────────────────────────────────────────────────────────┐
│[3]: ;=>_c shape 0:2|2:3->1:5                                   │
│┌──────┬───────────────────────────┬───────────────────────────┐│
@@ -463,6 +471,7 @@ let%expect_test "einsum matrix/inner+outer products" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ d;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:463:21
┌────────────────────────────────────────────────────────────────┐
│[4]: ;=>_d shape 0:2,1:2|3:3->2:5                               │
│┌──────┬───────────────────────────┬───────────────────────────┐│
@@ -486,6 +495,7 @@ let%expect_test "einsum matrix/inner+outer products" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ e;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:486:21
┌────────────────────────────────────┐
│[5]: ;=>_e shape 1:3->0:5           │
│┌──────┬───────────────────────────┐│
@@ -502,6 +512,7 @@ let%expect_test "einsum matrix/inner+outer products" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ f;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:502:21
┌────────────────────────────────────┐
│[6]: ;=>_f shape 1:3->0:5           │
│┌──────┬───────────────────────────┐│
@@ -536,6 +547,7 @@ let%expect_test "einsum1 broadcast or sum out prefix axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:536:21
┌─────────────────────────────────────────────────────────────────────────┐
│[1]: =>_ho shape 0:2|2:4->1:3                                            │
│┌──────┬───────────────────────────┬────────────────────────────────────┐│
@@ -553,6 +565,7 @@ let%expect_test "einsum1 broadcast or sum out prefix axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho2;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:553:21
┌────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[2]: =>_ho2 shape 0:4|2:3->1:2                                                                                          │
│┌──────┬───────────────────────────┬───────────────────────────┬───────────────────────────┬───────────────────────────┐│
@@ -573,6 +586,7 @@ let%expect_test "einsum1 broadcast or sum out prefix axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho3;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:573:21
┌────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[4]: =>_ho3 shape 0:2,1:5|4:4,5:7->2:6,3:3                                                                                                                                      │
│┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
@@ -702,6 +716,7 @@ let%expect_test "einsum1 broadcast or sum out prefix axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho4;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:702:21
┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[5]: =>_ho4 shape 0:5|2:7->1:3                                                                                                                                                                                            │
│┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
@@ -719,22 +734,13 @@ let%expect_test "einsum1 broadcast or sum out prefix axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ hey;
[%expect
{|
-    ┌─────────────────────────────────────────────────────────────┐
-    │[0]: r2x4x3 shape 0:2|2:3->1:4                               │
-    │┌──────┬────────────────────────┬───────────────────────────┐│
-    ││      │0 @ 0                   │1 @ 0                      ││
-    ││      │axis 2                  │axis 2                     ││
-    │├──────┼────────────────────────┼───────────────────────────┤│
-    ││axis 1│ 0.00  1.00     2.00    │ 1.20e+1  1.30e+1  1.40e+1 ││
-    ││      │ 3.00  4.00     5.00    │ 1.50e+1  1.60e+1  1.70e+1 ││
-    ││      │ 6.00  7.00     8.00    │ 1.80e+1  1.90e+1  2.00e+1 ││
-    ││      │ 9.00  1.00e+1  1.10e+1 │ 2.10e+1  2.20e+1  2.30e+1 ││
-    │└──────┴────────────────────────┴───────────────────────────┘│
-    └─────────────────────────────────────────────────────────────┘
+    HERE: test/einsum/einsum_trivia.ml:719:21
+    [0]: r2x4x3 shape 0:2|2:3->1:4  <virtual>
|}];
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho5;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:735:21
┌───────────────────────────────────────┐
│[6]: =>_ho5 shape 0:4                  │
│┌┬────────────────────────────────────┐│
@@ -750,6 +756,7 @@ let%expect_test "einsum1 broadcast or sum out prefix axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho6;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:750:21
┌──────────────────────────────────────┐
│[8]: =>_ho6 shape 0:4                  │
│┌┬────────────────────────────────────┐│
@@ -766,6 +773,7 @@ let%expect_test "einsum1 broadcast or sum out prefix axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho7;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:766:21
┌─────────────────────────────────────────────┐
│[10]: =>_ho7 shape 0:3,1:2,2:4               │
│┌──────┬────────────────────────────────────┐│
@@ -804,6 +812,7 @@ let%expect_test "einsum broadcast or sum out prefix axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ c;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:804:21
┌─────────────────────────────────────────────┐
│[2]: ;=>_c shape 0:3|1:4                     │
│┌──────┬────────────────────────────────────┐│
@@ -823,6 +832,7 @@ let%expect_test "einsum broadcast or sum out prefix axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ f;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:823:21
┌─────────────────────────────────────────────┐
│[5]: ;=>_f shape 0:3,1:2,2:4                 │
│┌──────┬────────────────────────────────────┐│
@@ -860,6 +870,7 @@ let%expect_test "einsum1 fixed dim axis" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:860:21
┌─────────────────────────────────────────────┐
│[1]: =>_ho shape 0:2|1:4                     │
│┌──────┬────────────────────────────────────┐│
@@ -875,6 +886,7 @@ let%expect_test "einsum1 fixed dim axis" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho2;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:875:21
┌────────────────────────────────────────────────────────────────┐
│[2]: =>_ho2 shape 0:2|2:3->1:1                                  │
│┌──────┬───────────────────────────┬───────────────────────────┐│
@@ -891,6 +903,7 @@ let%expect_test "einsum1 fixed dim axis" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho3;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:891:21
┌──────────────────────┐
│[4]: =>_ho3 shape 0:1 │
│┌┬─────────┐          │
@@ -905,6 +918,7 @@ let%expect_test "einsum1 fixed dim axis" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ho4;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:905:21
┌──────────────────────────────┐
│[5]: =>_ho4 shape 0:2,1:1,2:3 │
│┌──────┬──────────────────┐   │
@@ -940,6 +954,7 @@ let%expect_test "einsum with fixed dim axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ c;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:940:21
┌─────────────────────────────────────────────┐
│[2]: ;=>_c shape 0:3|1:4                     │
│┌──────┬────────────────────────────────────┐│
@@ -980,175 +995,178 @@ let%expect_test "outer_sum simulating axis concatenation" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ positions;
[%expect
{|
-    ┌────────────────────────────────┐
-    │[9]: ;=>+ shape 0:4,1:5,2:6,3:3 │
-    │┌──────┬──────────────────┐     │
-    ││0 @ 0 │axis 3            │     │
-    │├──────┼──────────────────┤     │
-    ││0 @ 1 │ 0.00  0.00  0.00 │     │
-    ││axis 2│ 0.00  0.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 0.00  0.00  4.00 │     │
-    ││      │ 0.00  0.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││1 @ 1 │ 0.00  1.00  0.00 │     │
-    ││axis 2│ 0.00  1.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 0.00  1.00  4.00 │     │
-    ││      │ 0.00  1.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││2 @ 1 │ 0.00  2.00  0.00 │     │
-    ││axis 2│ 0.00  2.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 0.00  2.00  4.00 │     │
-    ││      │ 0.00  2.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││3 @ 1 │ 0.00  3.00  0.00 │     │
-    ││axis 2│ 0.00  3.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 0.00  3.00  4.00 │     │
-    ││      │ 0.00  3.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││4 @ 1 │ 0.00  4.00  0.00 │     │
-    ││axis 2│ 0.00  4.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 0.00  4.00  4.00 │     │
-    ││      │ 0.00  4.00  5.00 │     │
-    │└──────┴──────────────────┘     │
-    ├────────────────────────────────┤
-    │┌──────┬──────────────────┐     │
-    ││1 @ 0 │axis 3            │     │
-    │├──────┼──────────────────┤     │
-    ││0 @ 1 │ 1.00  0.00  0.00 │     │
-    ││axis 2│ 1.00  0.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 1.00  0.00  4.00 │     │
-    ││      │ 1.00  0.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││1 @ 1 │ 1.00  1.00  0.00 │     │
-    ││axis 2│ 1.00  1.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 1.00  1.00  4.00 │     │
-    ││      │ 1.00  1.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││2 @ 1 │ 1.00  2.00  0.00 │     │
-    ││axis 2│ 1.00  2.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 1.00  2.00  4.00 │     │
-    ││      │ 1.00  2.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││3 @ 1 │ 1.00  3.00  0.00 │     │
-    ││axis 2│ 1.00  3.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 1.00  3.00  4.00 │     │
-    ││      │ 1.00  3.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││4 @ 1 │ 1.00  4.00  0.00 │     │
-    ││axis 2│ 1.00  4.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 1.00  4.00  4.00 │     │
-    ││      │ 1.00  4.00  5.00 │     │
-    │└──────┴──────────────────┘     │
-    ├────────────────────────────────┤
-    │┌──────┬──────────────────┐     │
-    ││2 @ 0 │axis 3            │     │
-    │├──────┼──────────────────┤     │
-    ││0 @ 1 │ 2.00  0.00  0.00 │     │
-    ││axis 2│ 2.00  0.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 2.00  0.00  4.00 │     │
-    ││      │ 2.00  0.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││1 @ 1 │ 2.00  1.00  0.00 │     │
-    ││axis 2│ 2.00  1.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 2.00  1.00  4.00 │     │
-    ││      │ 2.00  1.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││2 @ 1 │ 2.00  2.00  0.00 │     │
-    ││axis 2│ 2.00  2.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 2.00  2.00  4.00 │     │
-    ││      │ 2.00  2.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││3 @ 1 │ 2.00  3.00  0.00 │     │
-    ││axis 2│ 2.00  3.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 2.00  3.00  4.00 │     │
-    ││      │ 2.00  3.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││4 @ 1 │ 2.00  4.00  0.00 │     │
-    ││axis 2│ 2.00  4.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 2.00  4.00  4.00 │     │
-    ││      │ 2.00  4.00  5.00 │     │
-    │└──────┴──────────────────┘     │
-    ├────────────────────────────────┤
-    │┌──────┬──────────────────┐     │
-    ││3 @ 0 │axis 3            │     │
-    │├──────┼──────────────────┤     │
-    ││0 @ 1 │ 3.00  0.00  0.00 │     │
-    ││axis 2│ 3.00  0.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 3.00  0.00  4.00 │     │
-    ││      │ 3.00  0.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││1 @ 1 │ 3.00  1.00  0.00 │     │
-    ││axis 2│ 3.00  1.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 3.00  1.00  4.00 │     │
-    ││      │ 3.00  1.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││2 @ 1 │ 3.00  2.00  0.00 │     │
-    ││axis 2│ 3.00  2.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 3.00  2.00  4.00 │     │
-    ││      │ 3.00  2.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││3 @ 1 │ 3.00  3.00  0.00 │     │
-    ││axis 2│ 3.00  3.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 3.00  3.00  4.00 │     │
-    ││      │ 3.00  3.00  5.00 │     │
-    │├──────┼──────────────────┤     │
-    ││4 @ 1 │ 3.00  4.00  0.00 │     │
-    ││axis 2│ 3.00  4.00  1.00 │     │
-    ││      │ ...   ...   ...  │     │
-    ││      │ 3.00  4.00  4.00 │     │
-    ││      │ 3.00  4.00  5.00 │     │
-    │└──────┴──────────────────┘     │
-    └────────────────────────────────┘
+    HERE: test/einsum/einsum_trivia.ml:980:21
+    ┌────────────────────────────────────────┐
+    │[9]: ;=>+ shape 0:4,1:5,2:6,3:3         │
+    │┌──────┬───────────────────────────────┐│
+    ││0 @ 0 │axis 3                         ││
+    │├──────┼───────────────────────────────┤│
+    ││0 @ 1 │ 3.28e-2   0.00      0.00      ││
+    ││axis 2│ 1.68e-2   0.00      1.00      ││
+    ││      │ ...       ...       ...       ││
+    ││      │ -6.89e+2  4.36e-41  4.00      ││
+    ││      │ 1.68e-2   -6.89e+2  5.00      ││
+    │├──────┼───────────────────────────────┤│
+    ││1 @ 1 │ 1.59e-2   1.00      0.00      ││
+    ││axis 2│ 0.00      1.00      1.00      ││
+    ││      │ ...       ...       ...       ││
+    ││      │ -6.89e+2  1.00      4.00      ││
+    ││      │ 0.00      -6.88e+2  5.00      ││
+    │├──────┼───────────────────────────────┤│
+    ││2 @ 1 │ 1.59e-2   2.00      0.00      ││
+    ││axis 2│ 0.00      2.00      1.00      ││
+    ││      │ ...       ...       ...       ││
+    ││      │ -6.89e+2  2.00      4.00      ││
+    ││      │ 0.00      -6.87e+2  5.00      ││
+    │├──────┼───────────────────────────────┤│
+    ││3 @ 1 │ 1.59e-2   3.00      0.00      ││
+    ││axis 2│ 0.00      3.00      1.00      ││
+    ││      │ ...       ...       ...       ││
+    ││      │ -6.89e+2  3.00      4.00      ││
+    ││      │ 0.00      -6.86e+2  5.00      ││
+    │├──────┼───────────────────────────────┤│
+    ││4 @ 1 │ -1.29e+13  4.00      2.80e-33 ││
+    ││axis 2│ -1.29e+13  4.00      1.00     ││
+    ││      │ ...        ...       ...      ││
+    ││      │ -1.29e+13  4.00      4.00     ││
+    ││      │ -1.29e+13  -6.85e+2  5.00     ││
+    │└──────┴───────────────────────────────┘│
+    ├────────────────────────────────────────┤
+    │┌──────┬───────────────────────────────┐│
+    ││1 @ 0 │axis 3                         ││
+    │├──────┼───────────────────────────────┤│
+    ││0 @ 1 │ 1.03      2.89e+32  2.42e+24  ││
+    ││axis 2│ 1.01      2.89e+32  2.42e+24  ││
+    ││      │ ...       ...       ...       ││
+    ││      │ -6.88e+2  2.89e+32  2.42e+24  ││
+    ││      │ 1.01      2.89e+32  2.42e+24  ││
+    │├──────┼───────────────────────────────┤│
+    ││1 @ 1 │ 1.01      2.89e+32  2.42e+24  ││
+    ││axis 2│ 1.00      2.89e+32  2.42e+24  ││
+    ││      │ ...       ...       ...       ││
+    ││      │ -6.88e+2  2.89e+32  2.42e+24  ││
+    ││      │ 1.00      2.89e+32  2.42e+24  ││
+    │├──────┼───────────────────────────────┤│
+    ││2 @ 1 │ 1.01      2.89e+32  2.42e+24  ││
+    ││axis 2│ 1.00      2.89e+32  2.42e+24  ││
+    ││      │ ...       ...       ...       ││
+    ││      │ -6.88e+2  2.89e+32  2.42e+24  ││
+    ││      │ 1.00      2.89e+32  2.42e+24  ││
+    │├──────┼───────────────────────────────┤│
+    ││3 @ 1 │ 1.01      2.89e+32  2.42e+24  ││
+    ││axis 2│ 1.00      2.89e+32  2.42e+24  ││
+    ││      │ ...       ...       ...       ││
+    ││      │ -6.88e+2  2.89e+32  2.42e+24  ││
+    ││      │ 1.00      2.89e+32  2.42e+24  ││
+    │├──────┼───────────────────────────────┤│
+    ││4 @ 1 │ -1.29e+13  2.89e+32  2.42e+24 ││
+    ││axis 2│ -1.29e+13  2.89e+32  2.42e+24 ││
+    ││      │ ...        ...       ...      ││
+    ││      │ -1.29e+13  2.89e+32  2.42e+24 ││
+    ││      │ -1.29e+13  2.89e+32  2.42e+24 ││
+    │└──────┴───────────────────────────────┘│
+    ├────────────────────────────────────────┤
+    │┌──────┬──────────────────────────────┐ │
+    ││2 @ 0 │axis 3                        │ │
+    │├──────┼──────────────────────────────┤ │
+    ││0 @ 1 │ 2.03      3.25e-9   4.30e-5  │ │
+    ││axis 2│ 2.01      3.25e-9   1.00     │ │
+    ││      │ ...       ...       ...      │ │
+    ││      │ -6.87e+2  3.25e-9   4.00     │ │
+    ││      │ 2.01      -6.89e+2  5.00     │ │
+    │├──────┼──────────────────────────────┤ │
+    ││1 @ 1 │ 2.01      1.00      4.30e-5  │ │
+    ││axis 2│ 2.00      1.00      1.00     │ │
+    ││      │ ...       ...       ...      │ │
+    ││      │ -6.87e+2  1.00      4.00     │ │
+    ││      │ 2.00      -6.88e+2  5.00     │ │
+    │├──────┼──────────────────────────────┤ │
+    ││2 @ 1 │ 2.01      2.00      4.30e-5  │ │
+    ││axis 2│ 2.00      2.00      1.00     │ │
+    ││      │ ...       ...       ...      │ │
+    ││      │ -6.87e+2  2.00      4.00     │ │
+    ││      │ 2.00      -6.87e+2  5.00     │ │
+    │├──────┼──────────────────────────────┤ │
+    ││3 @ 1 │ 2.01      3.00      4.30e-5  │ │
+    ││axis 2│ 2.00      3.00      1.00     │ │
+    ││      │ ...       ...       ...      │ │
+    ││      │ -6.87e+2  3.00      4.00     │ │
+    ││      │ 2.00      -6.86e+2  5.00     │ │
+    │├──────┼──────────────────────────────┤ │
+    ││4 @ 1 │ -1.29e+13  4.00      4.30e-5 │ │
+    ││axis 2│ -1.29e+13  4.00      1.00    │ │
+    ││      │ ...        ...       ...     │ │
+    ││      │ -1.29e+13  4.00      4.00    │ │
+    ││      │ -1.29e+13  -6.85e+2  5.00    │ │
+    │└──────┴──────────────────────────────┘ │
+    ├────────────────────────────────────────┤
+    │┌──────┬───────────────────────────────┐│
+    ││3 @ 0 │axis 3                         ││
+    │├──────┼───────────────────────────────┤│
+    ││0 @ 1 │ 3.03      1.72e+22  4.09e-11  ││
+    ││axis 2│ 3.01      1.72e+22  1.00      ││
+    ││      │ ...       ...       ...       ││
+    ││      │ -6.86e+2  1.72e+22  4.00      ││
+    ││      │ 3.01      1.72e+22  5.00      ││
+    │├──────┼───────────────────────────────┤│
+    ││1 @ 1 │ 3.01      1.72e+22  4.09e-11  ││
+    ││axis 2│ 3.00      1.72e+22  1.00      ││
+    ││      │ ...       ...       ...       ││
+    ││      │ -6.86e+2  1.72e+22  4.00      ││
+    ││      │ 3.00      1.72e+22  5.00      ││
+    │├──────┼───────────────────────────────┤│
+    ││2 @ 1 │ 3.01      1.72e+22  4.09e-11  ││
+    ││axis 2│ 3.00      1.72e+22  1.00      ││
+    ││      │ ...       ...       ...       ││
+    ││      │ -6.86e+2  1.72e+22  4.00      ││
+    ││      │ 3.00      1.72e+22  5.00      ││
+    │├──────┼───────────────────────────────┤│
+    ││3 @ 1 │ 3.01      1.72e+22  4.09e-11  ││
+    ││axis 2│ 3.00      1.72e+22  1.00      ││
+    ││      │ ...       ...       ...       ││
+    ││      │ -6.86e+2  1.72e+22  4.00      ││
+    ││      │ 3.00      1.72e+22  5.00      ││
+    │├──────┼───────────────────────────────┤│
+    ││4 @ 1 │ -1.29e+13  1.72e+22  4.09e-11 ││
+    ││axis 2│ -1.29e+13  1.72e+22  1.00     ││
+    ││      │ ...        ...       ...      ││
+    ││      │ -1.29e+13  1.72e+22  4.00     ││
+    ││      │ -1.29e+13  1.72e+22  5.00     ││
+    │└──────┴───────────────────────────────┘│
+    └────────────────────────────────────────┘
|}];
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ ti;
[%expect
{|
-    ┌───────────────────────────┐
-    │[1]: =>_ti shape 0:4,1:3   │
-    │┌──────┬──────────────────┐│
-    ││      │axis 1            ││
-    │├──────┼──────────────────┤│
-    ││axis 0│ 0.00  0.00  0.00 ││
-    ││      │ 1.00  0.00  0.00 ││
-    ││      │ 2.00  0.00  0.00 ││
-    ││      │ 3.00  0.00  0.00 ││
-    │└──────┴──────────────────┘│
-    └───────────────────────────┘
+    HERE: test/einsum/einsum_trivia.ml:1122:21
+    ┌───────────────────────────────────┐
+    │[1]: =>_ti shape 0:4,1:3           │
+    │┌──────┬──────────────────────────┐│
+    ││      │axis 1                    ││
+    │├──────┼──────────────────────────┤│
+    ││axis 0│ 0.00  0.00      0.00     ││
+    ││      │ 1.00  2.89e+32  2.42e+24 ││
+    ││      │ 2.00  3.25e-9   4.30e-5  ││
+    ││      │ 3.00  1.72e+22  4.09e-11 ││
+    │└──────┴──────────────────────────┘│
+    └───────────────────────────────────┘
|}];
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ tk;
[%expect
{|
-    ┌───────────────────────────┐
-    │[7]: =>_tk shape 0:6,1:3   │
-    │┌──────┬──────────────────┐│
-    ││      │axis 1            ││
-    │├──────┼──────────────────┤│
-    ││axis 0│ 0.00  0.00  0.00 ││
-    ││      │ 0.00  0.00  1.00 ││
-    ││      │ ...   ...   ...  ││
-    ││      │ 0.00  0.00  4.00 ││
-    ││      │ 0.00  0.00  5.00 ││
-    │└──────┴──────────────────┘│
-    └───────────────────────────┘
+    HERE: test/einsum/einsum_trivia.ml:1137:21
+    ┌───────────────────────────────────┐
+    │[7]: =>_tk shape 0:6,1:3           │
+    │┌──────┬──────────────────────────┐│
+    ││      │axis 1                    ││
+    │├──────┼──────────────────────────┤│
+    ││axis 0│ 1.59e-2   0.00      0.00 ││
+    ││      │ 0.00      0.00      1.00 ││
+    ││      │ ...       ...       ...  ││
+    ││      │ -6.89e+2  4.36e-41  4.00 ││
+    ││      │ 0.00      -6.89e+2  5.00 ││
+    │└──────┴──────────────────────────┘│
+    └───────────────────────────────────┘
|}]


let%expect_test "einsum with a leftmost input axis preserved as output axis" =
@@ -1175,6 +1193,7 @@ let%expect_test "einsum with a leftmost input axis preserved as output axis" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ c;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:1175:21
┌─────────────────────────────────────────────────────────────────┐
│[2]: ;=>_c shape 0:3|1:4,2:2                                     │
│┌──────┬──────────────────┬──────────────────┬──────────────────┐│
@@ -1209,6 +1228,7 @@ let%expect_test "einsum permuting two leftmost input axes as output axes" =
Tensor.print ~here:[%here] ~with_code:false ~with_grad:false `Default @@ c;
[%expect
{|
+    HERE: test/einsum/einsum_trivia.ml:1209:21
┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│[2]: ;=>_c shape 2:4->0:3,1:2                                                                                          │
│┌──────┬────────────────────────────────────┬────────────────────────────────────┬────────────────────────────────────┐│
File "test/einsum/moons_demo_variant.expected", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/einsum/moons_demo_variant.expected _build/default/test/einsum/moons_demo_variant.exe.output
diff --git a/_build/default/test/einsum/moons_demo_variant.expected b/_build/default/test/einsum/moons_demo_variant.exe.output
index 68171df..85709c2 100644
--- a/_build/default/test/einsum/moons_demo_variant.expected
+++ b/_build/default/test/einsum/moons_demo_variant.exe.output
@@ -1,52 +1,52 @@


-Welcome to OCANNL! Reading configuration defaults from /Users/lukstafi/ocannl/_build/default/test/einsum/ocannl_config.
+Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test/einsum/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
Half-moons scatterplot and decision boundary:
┌────────────────────────────────────────────────────────────────────────────────────────────────────┐
-│****************************#***********************************************************************│
-│****************************###***###***#***********************************************************│
-│***************************#********#***#**********************************************************.│
-│********************#*********************##*#*#************************************************....│
-│******************#***#*****##*#*#*#****#*#*#*##**********************************************......│
-│**************#*#**###**#*##**##********#**#****###**#*************************************.........│
-│***********#***##***#**##*****************#*#*##*###*************************************...........│
-│***************#**###******************************##*#********************************.............│
-│*************#*****#******************************#*#***#*#*************************................│
-│*********#***#************************************##*###**#***********************..................│
-│******#***#*#*#******************************************#*#*******************.....................│
-│*****###****#*******************************************#********************.......................│
-│*******#*###***********************************************#*#************..........................│
-│**********##**********************%%*********************#**##**********............................│
-│*****#***#**********************%**%%********************************.............................%.│
-│**####*************************%**%**************************##*#**............................%...%│
-│****#**************************%%**%*************************#*#*..............................%....│
-│*#****##************************%*...%*********************##*..#...........................%...%%..│
-│****#*#***********************.%..%.%........................#..#.............................%.%...│
-│##*##*********************.......%.............................#.##.........................%.%.%%%.│
-│**#####*****************.......%...%%.......................................................%..%.%..│
-│**********************...........%.%.%%.....................#.#.#.#.............................%%..│
-│***##****************............%..%..%........................#.#.........................%...%...│
-│##**#**************................%...%.....................#..###......................%.%%.......│
-│###***************...............%.%.%...........................##............................%....│
-│**##************.................................................#......................%%.%..%.....│
-│**#************....................%%...........................##......................%%.%........│
-│**************........................%......................#..#...........................%.......│
-│************........................%%.%.......................##.....................%..%..........│
-│***********............................%%..............................................%%.%%........│
-│**********.............................%...%............................................%%%.........│
-│********...................................%..%....................................%.....%..........│
-│*******.................................%%..%.%................................%.%.%.%%.............│
-│******.....................................%%.%...%%.%.......................%%%....%.%.%...........│
-│*****....................................%.....%.%..%....................%.....%%.%.%...............│
-│***.........................................%%...%.%%%%..%.......%.........%%.%%....................│
-│**................................................%..%.......%..%%%%...%.%..%.%.....................│
-│*..................................................%.%.%............%..%...%........................│
-│..................................................%....%.%......%%...%.%............................│
-│..........................................................%..%......%%%.............................│
+│...................................#................................................................│
+│..........................##..#..###....##..........................................................│
+│.........................#....#.....#...............................................................│
+│.......................#.##.#.......#####...#.#.....................................................│
+│..................#.#.#...#..#.##....#.#.##..#....#.................................................│
+│.............#.#......##.#..#..........###..#....#..................................................│
+│.............##..##.....#....................#.##.###...#...........................................│
+│.............#.##.#.#.#.......................#...##..#.............................................│
+│.........#.#....##..................................##..#...........................................│
+│...........#.#....................................#..##...#.#.......................................│
+│..........##..........................................#...#.#.......................................│
+│.......#...###............................................#.........................................│
+│....#....##..........................%..................#....##.....................................│
+│.........##................................................#..#..............................%......│
+│.....#..#........................%..%......................##.#...................................%.│
+│...##.#..................................................#....................................%...%.│
+│..###...........................%..%%......................###................................%.%...│
+│..#...#.#.......................%%.%%.......................#.##.#............................%.....│
+│..#...#.............................%.........................##..............................%...%.│
+│..##..#............................%%.........................#..##.........................%%..%.%%│
+│#...#..#.........................%.%%%.......................##...#............................%.%..│
+│##...#.............................%%.........................#.#..#................................│
+│...................................%%%%.......................##.#.#........................%%..%.%.│
+│###................................%%..............................#.......................%....%...│
+│..##................................%%%.%....................................................%%..%..│
+│.#.....................................%.......................#.###......................%.%%.%....│
+│.....#................................%...%................................................%...%....│
+│...................................%.....%%......................#..................................│
+│.....................................%%%..%...........................................%..%%..%......│
+│.......................................%%.....%......................................%..%.%.%.......│
+│.........................................%%............................................%..%%.%......│
+│..........................................%.%.....%...............................%.%.%%..%.........│
+│.........................................%%%..%%......................................%.............│
+│...........................................%.%..%..............................%%.%.%.%%.%..........│
+│..............................................%%%%..%.%.......................%%..%.%.%.............│
+│..............................................%..%%%.%%...................%..%%...%.................│
+│...............................................%...%.%.%..%...%.%%..%%.%%...%.......................│
+│......................................................%%.%%%..%.%..%%.%.%.%%........................│
+│.....................................................%...........%%%%......%%.......................│
+│.......................................................%.%%%%.%.......%...%.........................│
└────────────────────────────────────────────────────────────────────────────────────────────────────┘Loss:
┌────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-│ 3.79e+1│-                                                                                                   │
+│ 6.25e+7│                                                  -                                                 │
│        │                                                                                                    │
│        │                                                                                                    │
│        │                                                                                                    │
@@ -76,7 +76,6 @@ Half-moons scatterplot and decision boundary:
│        │                                                                                                    │
│        │                                                                                                    │
│        │                                                                                                    │
-│        │ -                                                                                                  │
│        │                                                                                                    │
│        │                                                                                                    │
│        │                                                                                                    │
@@ -84,43 +83,44 @@ Half-moons scatterplot and decision boundary:
│        │                                                                                                    │
│        │                                                                                                    │
│        │                                                                                                    │
-│        │  -       -    -                          -                                                         │
-│ 0.00   │   - ----  ---  --- ---- ---- ---- ---- -- - ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│ 0.00   │---- ---- ---- ---- ---- ---- ---- ---- ---- ----  --- ---- ---- ---- ---- ---- ---- ---- ---- ---- │
├────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
│        │0.00                                                                                         7.90e+1│
│        │                                                step                                                │
└────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘Log-loss, for better visibility:
┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-│ 3.63    │-                                                                                                   │
+│ 1.79e+1 │                                                  -                                                 │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
│         │                                                                                                    │
│         │                                                                                                    │
│         │                                                                                                    │
-│         │ -                                                                                                  │
│         │                                                                                                    │
│         │                                                                                                    │
│         │                                                                                                    │
│         │                                                                                                    │
-│         │  -                                                                                                 │
-│         │                                          -                                                         │
-│         │          -    -                                                                            -       │
-│         │   - -           -                                                 -                                │
-│         │       --  -      - - -   -   - -            --           -  -   -  -       -                  --   │
-│         │      -     -   -      -   -   -    -             --        -         - --   -  - -   -             │
-│         │                                 -                  -                            -                  │
-│l        │             -       -               -  --                                         -                │
-│o        │                                                         -                             -            │
-│g        │                                      -                                              -     -     -  │
-│         │                                   -           -                              -                     │
-│l        │                         -                                    --                                    │
-│o        │                                           -                      -        -                        │
-│s        │                                                     -                                              │
-│s        │                                                       -                                            │
-│         │                                                                       -                            │
│         │                                                                                                    │
│         │                                                                                                    │
│         │                                                                                                    │
+│l        │                                                                                                    │
+│o        │                                                                                                    │
+│g        │                                                                                                    │
│         │                                                                                                    │
+│l        │                                                                                                    │
+│o        │                         -                                                                          │
+│s        │                                                                                                    │
+│s        │                                                                                                    │
│         │                                                                                                    │
+│         │                                                                           ---- ---- -              │
+│         │-                                                  ---                                --- --        │
+│         │                                                       -                                    --      │
+│         │                                                        -                                      -    │
+│         │                                                         -                                      -   │
│         │                                                                                                    │
│         │                                                                                                    │
│         │                                                                                                    │
@@ -130,7 +130,7 @@ Half-moons scatterplot and decision boundary:
│         │                                                                                                    │
│         │                                                                                                    │
│         │                                                                                                    │
-│ -1.00e+1│                            -                   -       -                               - -  -    - │
+│ -1.00e+1│ --- ---- ---- ---- ----  --- ---- ---- ---- ----         - ---- ---- ----                       -- │
├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
│         │0.00                                                                                         7.90e+1│
│         │                                                step                                                │
File "test/training/moons_demo.expected", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/training/moons_demo.expected _build/default/test/training/moons_demo.exe.output
diff --git a/_build/default/test/training/moons_demo.expected b/_build/default/test/training/moons_demo.exe.output
index f88c473..e8aa27e 100644
--- a/_build/default/test/training/moons_demo.expected
+++ b/_build/default/test/training/moons_demo.exe.output
@@ -1,188 +1,184 @@


-    Half-moons scatterplot and decision boundary:
-    ┌────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │****************************#***********************************************************************│
-    │****************************###***###***#***********************************************************│
-    │***************************#********#***#***********************************************************│
-    │********************#*********************##*#*#****************************************************│
-    │******************#***#*****##*#*#*#****#*#*#*##****************************************************│
-    │**************#*#**###**#*##**##********#**#****###**#**********************************************│
-    │***********#***##***#**##*****************#*#*##*###**********************************************..│
-    │***************#**###******************************##*#******************************************...│
-    │*************#*****#******************************#*#***#*#*************************************....│
-    │*********#***#******************......************##*###**#************************************.....│
-    │******#***#*#*#****************........******************#*#*********************************.......│
-    │*****###****#****************...........****************#***********************************........│
-    │*******#*###****************.............******************#*#*****************************.........│
-    │**********##***************.......%%......***************#**##****************************..........│
-    │*****#***#****************......%..%%......*********************************************..........%.│
-    │**####*******************......%..%..........****************##*#**********************........%...%│
-    │****#*******************.......%%..%..........***************#*#**********************.........%....│
-    │*#****##***************.........%....%.........************##***#********************.......%...%%..│
-    │****#*#***************.........%..%.%...........*************#**#*******************..........%.%...│
-    │##*##****************............%...............**************#*##****************.........%.%.%%%.│
-    │**#####************............%...%%.............*******************************...........%..%.%..│
-    │******************...............%.%.%%............*********#*#*#*#*************................%%..│
-    │***##************................%..%..%............************#*#************.............%...%...│
-    │##**#***********...................%...%.............********#**###***********...........%.%%.......│
-    │###************..................%.%.%................***********##**********..................%....│
-    │**##**********.........................................**********#*********.............%%.%..%.....│
-    │**#**********......................%%...................********##********..............%%.%........│
-    │************..........................%..................****#**#********...................%.......│
-    │***********.........................%%.%..................*****##******...............%..%..........│
-    │**********.............................%%..................***********.................%%.%%........│
-    │*********..............................%...%................*******.....................%%%.........│
-    │********...................................%..%....................................%.....%..........│
-    │*******.................................%%..%.%................................%.%.%.%%.............│
-    │******.....................................%%.%...%%.%.......................%%%....%.%.%...........│
-    │*****....................................%.....%.%..%....................%.....%%.%.%...............│
-    │****........................................%%...%.%%%%..%.......%.........%%.%%....................│
-    │***...............................................%..%.......%..%%%%...%.%..%.%.....................│
-    │**.................................................%.%.%............%..%...%........................│
-    │*.................................................%....%.%......%%...%.%............................│
-    │..........................................................%..%......%%%.............................│
-    └────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    
-    Loss:
-    ┌────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 3.79e+1│-                                                                                                   │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │l       │                                                                                                    │
-    │o       │                                                                                                    │
-    │s       │                                                                                                    │
-    │s       │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │-                                                                                                   │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │-       -         -                                                                                 │
-    │ 0.00   │----------------------------------------------------------------------------------------------------│
-    ├────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │        │0.00                                                                                         3.99e+2│
-    │        │                                                step                                                │
-    └────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    
-    Log-loss, for better visibility:
-    ┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 3.63    │-                                                                                                   │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │-                                                                                                   │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │-                                                                                                   │
-    │         │        -         -                                                                                 │
-    │         │ -  -                        -                                                                      │
-    │         │------       -                                                                                      │
-    │         │ ---- -  - --- -   - - -    -                                                                       │
-    │         │   --  -  - - ---     --  -  --            -                                                        │
-    │         │  -  -- - -    ---  - - ---  -----       - --                                                       │
-    │l        │       --  -      - -      -     ---  -    -         -                                              │
-    │o        │       - -  -   --            -  --  - -  -     -                        -                          │
-    │g        │               -     -   -      -  --     - -    -  -     -                   -          -          │
-    │         │     - -     -   --      -                  -      -  --       - -         -                        │
-    │l        │            -             -            --    --            -  -         -  -                       -│
-    │o        │        -        -                           -       -  -       -   -           - -          -    - │
-    │s        │                               -     -        -      -                             --   -           │
-    │s        │                      -                                                   -                         │
-    │         │                       -   -                          -    -           -        -       -    -    - │
-    │         │                   -               - -  -                               -                           │
-    │         │                                                                             -   -                  │
-    │         │                                                  -    -              -                             │
-    │         │                                      -                                        -                    │
-    │         │                                                                                                    │
-    │         │                            -                                                                       │
-    │         │                                                                -                                   │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │          -                                                                                         │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │ -1.00e+1│     -   - -  -   ----- -- --------------- ---------------------------------------------------------│
-    ├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │         │0.00                                                                                         3.99e+2│
-    │         │                                                step                                                │
-    └─────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    
-    Learning rate:
-    ┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ -1.00e-1│                                                                                                   -│
-    │         │                                                                                                 ---│
-    │         │                                                                                              ----  │
-    │         │                                                                                            ---     │
-    │         │                                                                                         ----       │
-    │         │                                                                                       ---          │
-    │         │                                                                                    ---             │
-    │         │                                                                                  ---               │
-    │         │                                                                               ---                  │
-    │         │                                                                            ----                    │
-    │         │                                                                          ---                       │
-    │         │                                                                       ----                         │
-    │         │                                                                     ---                            │
-    │l        │                                                                  ----                              │
-    │e        │                                                                ---                                 │
-    │a        │                                                             ---                                    │
-    │r        │                                                           ---                                      │
-    │n        │                                                        ---                                         │
-    │i        │                                                     ----                                           │
-    │n        │                                                   ---                                              │
-    │g        │                                                ----                                                │
-    │         │                                              ---                                                   │
-    │r        │                                           ----                                                     │
-    │a        │                                         ---                                                        │
-    │t        │                                      ---                                                           │
-    │e        │                                    ---                                                             │
-    │         │                                 ---                                                                │
-    │         │                              ----                                                                  │
-    │         │                            ---                                                                     │
-    │         │                         ----                                                                       │
-    │         │                       ---                                                                          │
-    │         │                    ----                                                                            │
-    │         │                  ---                                                                               │
-    │         │               ---                                                                                  │
-    │         │             ---                                                                                    │
-    │         │          ---                                                                                       │
-    │         │       ----                                                                                         │
-    │         │     ---                                                                                            │
-    │         │  ----                                                                                              │
-    │ -2.00e-1│---                                                                                                 │
-    ├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │         │0.00                                                                                         3.99e+2│
-    │         │                                                step                                                │
-    └─────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    mlp_result's name: mlp_point
-    (mlp moons_input) name: mlp_moons_input
-    
\ No newline at end of file
+Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test/training/ocannl_config.
+Retrieving commandline, environment, or config file variable ocannl_log_level
+Found 0, in the config file
+Half-moons scatterplot and decision boundary:
+┌────────────────────────────────────────────────────────────────────────────────────────────────────┐
+│...................................#................................................................│
+│..........................##..#..###....##..........................................................│
+│.........................#....#.....#...............................................................│
+│.......................#.##.#.......#####...#.#.....................................................│
+│..................#.#.#...#..#.##....#.#.##..#....#.................................................│
+│.............#.#......##.#..#..........###..#....#..................................................│
+│.............##..##.....#....................#.##.###...#...........................................│
+│.............#.##.#.#.#.......................#...##..#.............................................│
+│.........#.#....##..................................##..#...........................................│
+│...........#.#....................................#..##...#.#.......................................│
+│..........##..........................................#...#.#.......................................│
+│.......#...###............................................#.........................................│
+│....#....##..........................%..................#....##.....................................│
+│.........##................................................#..#..............................%......│
+│.....#..#........................%..%......................##.#...................................%.│
+│...##.#..................................................#....................................%...%.│
+│..###...........................%..%%......................###................................%.%...│
+│..#...#.#.......................%%.%%.......................#.##.#............................%.....│
+│..#...#.............................%.........................##..............................%...%.│
+│..##..#............................%%.........................#..##.........................%%..%.%%│
+│#...#..#.........................%.%%%.......................##...#............................%.%..│
+│##...#.............................%%.........................#.#..#................................│
+│...................................%%%%.......................##.#.#........................%%..%.%.│
+│###................................%%..............................#.......................%....%...│
+│..##................................%%%.%....................................................%%..%..│
+│.#.....................................%.......................#.###......................%.%%.%....│
+│.....#................................%...%................................................%...%....│
+│...................................%.....%%......................#..................................│
+│.....................................%%%..%...........................................%..%%..%......│
+│.......................................%%.....%......................................%..%.%.%.......│
+│.........................................%%............................................%..%%.%......│
+│..........................................%.%.....%...............................%.%.%%..%.........│
+│.........................................%%%..%%......................................%.............│
+│...........................................%.%..%..............................%%.%.%.%%.%..........│
+│..............................................%%%%..%.%.......................%%..%.%.%.............│
+│..............................................%..%%%.%%...................%..%%...%.................│
+│...............................................%...%.%.%..%...%.%%..%%.%%...%.......................│
+│......................................................%%.%%%..%.%..%%.%.%.%%........................│
+│.....................................................%...........%%%%......%%.......................│
+│.......................................................%.%%%%.%.......%...%.........................│
+└────────────────────────────────────────────────────────────────────────────────────────────────────┘Loss:
+┌─────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
+│ 0.00│                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│l    │                                                                                                    │
+│o    │                                                                                                    │
+│s    │                                                                                                    │
+│s    │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│ 0.00│----------------------------------------------------------------------------------------------------│
+├─────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
+│     │0.00                                                                                         3.99e+2│
+│     │                                                step                                                │
+└─────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘Log-loss, for better visibility:
+┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
+│ -1.00e+1│                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│l        │                                                                                                    │
+│o        │                                                                                                    │
+│g        │                                                                                                    │
+│         │                                                                                                    │
+│l        │                                                                                                    │
+│o        │                                                                                                    │
+│s        │                                                                                                    │
+│s        │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│         │                                                                                                    │
+│ -1.00e+1│---------------------------------------------------------------------------------------------------│
+├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
+│         │0.00                                                                                         3.99e+2│
+│         │                                                step                                                │
+└─────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
+Learning rate:
+┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
+│ -1.00e-1│                                                                                                   -│
+│         │                                                                                                 ---│
+│         │                                                                                              ----  │
+│         │                                                                                            ---     │
+│         │                                                                                         ----       │
+│         │                                                                                       ---          │
+│         │                                                                                    ---             │
+│         │                                                                                  ---               │
+│         │                                                                               ---                  │
+│         │                                                                            ----                    │
+│         │                                                                          ---                       │
+│         │                                                                       ----                         │
+│         │                                                                     ---                            │
+│l        │                                                                  ----                              │
+│e        │                                                                ---                                 │
+│a        │                                                             ---                                    │
+│r        │                                                           ---                                      │
+│n        │                                                        ---                                         │
+│i        │                                                     ----                                           │
+│n        │                                                   ---                                              │
+│g        │                                                ----                                                │
+│         │                                              ---                                                   │
+│r        │                                           ----                                                     │
+│a        │                                         ---                                                        │
+│t        │                                      ---                                                           │
+│e        │                                    ---                                                             │
+│         │                                 ---                                                                │
+│         │                              ----                                                                  │
+│         │                            ---                                                                     │
+│         │                         ----                                                                       │
+│         │                       ---                                                                          │
+│         │                    ----                                                                            │
+│         │                  ---                                                                               │
+│         │               ---                                                                                  │
+│         │             ---                                                                                    │
+│         │          ---                                                                                       │
+│         │       ----                                                                                         │
+│         │     ---                                                                                            │
+│         │  ----                                                                                              │
+│ -2.00e-1│---                                                                                                 │
+├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
+│         │0.00                                                                                         3.99e+2│
+│         │                                                step                                                │
+└─────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘mlp_result's name: mlp_point
+(mlp moons_input) name: mlp_moons_input
File "test/training/moons_demo_parallel.expected", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/training/moons_demo_parallel.expected _build/default/test/training/moons_demo_parallel.exe.output
diff --git a/_build/default/test/training/moons_demo_parallel.expected b/_build/default/test/training/moons_demo_parallel.exe.output
index 3582111..f5db190 100644
--- a/_build/default/test/training/moons_demo_parallel.expected
+++ b/_build/default/test/training/moons_demo_parallel.exe.output
@@ -1 +1,5 @@
+
+Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test/training/ocannl_config.
+Retrieving commandline, environment, or config file variable ocannl_log_level
+Found 0, in the config file
Success
"/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1
2025-07-13 09:57.27: Job failed: Failed: Build failed