Organisationsahrefsocannl153e04 ()debian-12-5.3_arm64_opam-2.4

debian-12-5.3_arm64_opam-2.4

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2025-08-14 18:25.23: New job: test ahrefs/ocannl https://github.com/ahrefs/ocannl.git#refs/heads/master (153e04bc5b7143a41de4f4d187e33b18cb490898) (linux-arm64:debian-12-5.3_arm64_opam-2.4)
Base: ocaml/opam:debian-12-ocaml-5.3@sha256:32ac73f1e1e94e5b51b538ec5bf10459f08ccdd1329a22c26eea8642541b3ba0
Opam project build

To reproduce locally:

git clone --recursive "https://github.com/ahrefs/ocannl.git" -b "master" && cd "ocannl" && git reset --hard 153e04bc
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-12-ocaml-5.3@sha256:32ac73f1e1e94e5b51b538ec5bf10459f08ccdd1329a22c26eea8642541b3ba0
# debian-12-5.3_arm64_opam-2.4
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo ln -f /usr/bin/opam-2.4 /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 e77940d8ff8706305602d0d643bf01c77beef2e7 || git fetch origin master) && git reset -q --hard e77940d8ff8706305602d0d643bf01c77beef2e7 && 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 dune-private-libs.3.19.1 dune-site.3.19.1 dyn.3.19.1 fieldslib.v0.17.0 fmt.0.11.0 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 ordering.3.19.1 parsexp.v0.17.0 pp.2.0.0 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.6.1.1 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 stdune.3.19.1 thread-local-storage.0.2 time_now.v0.17.0 topkg.1.1.0 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=2.4 --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

2025-08-14 18:25.23: Using cache hint "ahrefs/ocannl-ocaml/opam:debian-12-ocaml-5.3@sha256:32ac73f1e1e94e5b51b538ec5bf10459f08ccdd1329a22c26eea8642541b3ba0-debian-12-5.3_arm64_opam-2.4-83f2c92a8149933d384aef7c4711fb31"
2025-08-14 18:25.23: Using OBuilder spec:
((from ocaml/opam:debian-12-ocaml-5.3@sha256:32ac73f1e1e94e5b51b538ec5bf10459f08ccdd1329a22c26eea8642541b3ba0)
 (comment debian-12-5.3_arm64_opam-2.4)
 (user (uid 1000) (gid 1000))
 (env CLICOLOR_FORCE 1)
 (env OPAMCOLOR always)
 (workdir /src)
 (run (shell "sudo ln -f /usr/bin/opam-2.4 /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 e77940d8ff8706305602d0d643bf01c77beef2e7 || git fetch origin master) && git reset -q --hard e77940d8ff8706305602d0d643bf01c77beef2e7 && 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 dune-private-libs.3.19.1 dune-site.3.19.1 dyn.3.19.1 fieldslib.v0.17.0 fmt.0.11.0 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 ordering.3.19.1 parsexp.v0.17.0 pp.2.0.0 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.6.1.1 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 stdune.3.19.1 thread-local-storage.0.2 time_now.v0.17.0 topkg.1.1.0 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=2.4 --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"))
)

2025-08-14 18:25.23: Waiting for resource in pool OCluster
2025-08-14 18:25.23: Waiting for worker…
2025-08-14 18:25.23: Got resource from pool OCluster
Building on okypous.caelum.ci.dev
HEAD is now at 45cd1e09 Introduce a new IR variant: `Constant_bits` for int64 constants, by Claude Claude found out that the discrepancy between sync_cc and metal backends was due to metal casting a float-single to uint4x32, while pure C was casting a double. This should go away with using Constant_bits / Tensor.bits for Fetch Embed_self_id and Tensor.get_random_seed
HEAD is now at 153e04bc Fixed, correct surjectivity testing for initialization; problem spotted and fixed by Claude Opus with my guidance on the surjectivity algo/heuristic

(from ocaml/opam:debian-12-ocaml-5.3@sha256:32ac73f1e1e94e5b51b538ec5bf10459f08ccdd1329a22c26eea8642541b3ba0)
Unable to find image 'ocaml/opam:debian-12-ocaml-5.3@sha256:32ac73f1e1e94e5b51b538ec5bf10459f08ccdd1329a22c26eea8642541b3ba0' locally
docker.io/ocaml/opam@sha256:32ac73f1e1e94e5b51b538ec5bf10459f08ccdd1329a22c26eea8642541b3ba0: Pulling from ocaml/opam
03e896d35897: Pulling fs layer
03e896d35897: Verifying Checksum
03e896d35897: Download complete
03e896d35897: Pull complete
Digest: sha256:32ac73f1e1e94e5b51b538ec5bf10459f08ccdd1329a22c26eea8642541b3ba0
Status: Downloaded newer image for ocaml/opam@sha256:32ac73f1e1e94e5b51b538ec5bf10459f08ccdd1329a22c26eea8642541b3ba0
2025-08-14 18:25.24 ---> using "2b6a049f628b0e00612e07a678630afc4e1995fa41a088af5fe5eeb111627646" from cache

/: (comment debian-12-5.3_arm64_opam-2.4)

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

/: (env CLICOLOR_FORCE 1)

/: (env OPAMCOLOR always)

/: (workdir /src)

/src: (run (shell "sudo ln -f /usr/bin/opam-2.4 /usr/bin/opam"))
2025-08-14 18:25.24 ---> using "cba8234b8fc7799840b819194970153b4c991d7b1e1d82124d5507e801b4b303" 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 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
2025-08-14 18:25.24 ---> using "8dbf3a4131ae0c175d927b879174fa9270802ccae27e32926d61bf19cf3a4497" from cache

/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 5.15.0-138-generic
The OCaml toplevel, version 5.3.0
2.4.1
2025-08-14 18:25.24 ---> using "e0fc09850a6640eb14b5e2cbe9dc5457cf1cba3fe1d428d41b18b5e0bcda5dd0" from cache

/src: (workdir /src)

/src: (run (shell "sudo chown opam /src"))
2025-08-14 18:25.24 ---> using "831ba7eb77537e6f779e2883ed3a8091bde4df00df74b12629337c0cdd9a70a6" from cache

/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
           (network host)
           (shell "cd ~/opam-repository && (git cat-file -e e77940d8ff8706305602d0d643bf01c77beef2e7 || git fetch origin master) && git reset -q --hard e77940d8ff8706305602d0d643bf01c77beef2e7 && git log --no-decorate -n1 --oneline && opam update -u"))
e77940d8ff Merge pull request #28255 from dbuenzli/b0-publish-fmt.0.11.0

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

Already up-to-date.
Nothing to do.
# To update the current shell environment, run: eval $(opam env)
2025-08-14 18:25.24 ---> using "f0f83808cc3474050c820f9d75dac216389402078f4585de58de82b1f5413edf" from cache

/src: (copy (src neural_nets_lib.opam arrayjit.opam) (dst ./))
2025-08-14 18:25.24 ---> using "72f2efb81e2594c9611e30f45a9a6c448bc6634a06956ef448d21bc50a94000d" 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)
2025-08-14 18:25.24 ---> using "2d67ca608efa6581eb325d5463a7b2cfdc0eb3e979483362172b51de89adcfdd" from cache

/src: (run (network host)
           (shell "echo '(lang dune 3.0)' > './dune-project'"))
2025-08-14 18:25.24 ---> using "746a63050d5cfd149fdfa88de31164d9cd799a68c63b1ec5c77d388c59487124" 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 dune-private-libs.3.19.1 dune-site.3.19.1 dyn.3.19.1 fieldslib.v0.17.0 fmt.0.11.0 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 ordering.3.19.1 parsexp.v0.17.0 pp.2.0.0 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.6.1.1 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 stdune.3.19.1 thread-local-storage.0.2 time_now.v0.17.0 topkg.1.1.0 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=2.4 --depext-only -y neural_nets_lib.dev arrayjit.dev $DEPS"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian bookworm InRelease
- Get:2 http://deb.debian.org/debian bookworm-updates InRelease [55.4 kB]
- Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]
- Get:4 http://deb.debian.org/debian bookworm-updates/main arm64 Packages.diff/Index [19.6 kB]
- Ign:4 http://deb.debian.org/debian bookworm-updates/main arm64 Packages.diff/Index
- Get:5 http://deb.debian.org/debian bookworm-updates/main arm64 Packages [6936 B]
- Get:6 http://deb.debian.org/debian-security bookworm-security/main arm64 Packages [268 kB]
- Fetched 398 kB in 0s (851 kB/s)
- Reading package lists...
- 

<><> 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:
    libcurl4-gnutls-dev libffi-dev pkg-config zlib1g-dev

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

+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "libcurl4-gnutls-dev" "libffi-dev" "pkg-config" "zlib1g-dev"
- debconf: delaying package configuration, since apt-utils is not installed
- Selecting previously unselected package libcurl4-gnutls-dev:arm64.
- (Reading database ... 
(Reading database ... 5%
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(Reading database ... 100%
(Reading database ... 18801 files and directories currently installed.)
- Preparing to unpack .../0-libcurl4-gnutls-dev_7.88.1-10+deb12u12_arm64.deb ...
- Unpacking libcurl4-gnutls-dev:arm64 (7.88.1-10+deb12u12) ...
- Selecting previously unselected package libffi-dev:arm64.
- Preparing to unpack .../1-libffi-dev_3.4.4-1_arm64.deb ...
- Unpacking libffi-dev:arm64 (3.4.4-1) ...
- Selecting previously unselected package libpkgconf3:arm64.
- Preparing to unpack .../2-libpkgconf3_1.8.1-1_arm64.deb ...
- Unpacking libpkgconf3:arm64 (1.8.1-1) ...
- Selecting previously unselected package pkgconf-bin.
- Preparing to unpack .../3-pkgconf-bin_1.8.1-1_arm64.deb ...
- Unpacking pkgconf-bin (1.8.1-1) ...
- Selecting previously unselected package pkgconf:arm64.
- Preparing to unpack .../4-pkgconf_1.8.1-1_arm64.deb ...
- Unpacking pkgconf:arm64 (1.8.1-1) ...
- Selecting previously unselected package pkg-config:arm64.
- Preparing to unpack .../5-pkg-config_1.8.1-1_arm64.deb ...
- Unpacking pkg-config:arm64 (1.8.1-1) ...
- Selecting previously unselected package zlib1g-dev:arm64.
- Preparing to unpack .../6-zlib1g-dev_1%3a1.2.13.dfsg-1_arm64.deb ...
- Unpacking zlib1g-dev:arm64 (1:1.2.13.dfsg-1) ...
- Setting up libcurl4-gnutls-dev:arm64 (7.88.1-10+deb12u12) ...
- Setting up libffi-dev:arm64 (3.4.4-1) ...
- Setting up libpkgconf3:arm64 (1.8.1-1) ...
- Setting up pkgconf-bin (1.8.1-1) ...
- Setting up zlib1g-dev:arm64 (1:1.2.13.dfsg-1) ...
- Setting up pkgconf:arm64 (1.8.1-1) ...
- Setting up pkg-config:arm64 (1.8.1-1) ...
- Processing triggers for libc-bin (2.36-9+deb12u10) ...
2025-08-14 18:25.24 ---> using "6937e0f1581050a60884411271944c40f959e519e9a345988c1bc5e1d1527b51" 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 87 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 dune-private-libs       3.19.1
  - install dune-site               3.19.1
  - install dyn                     3.19.1
  - install fieldslib               v0.17.0
  - install fmt                     0.11.0
  - 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 ordering                3.19.1
  - install parsexp                 v0.17.0
  - install pp                      2.0.0
  - 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            6.1.1
  - 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 stdune                  3.19.1
  - install thread-local-storage    0.2
  - install time_now                v0.17.0
  - install topkg                   1.1.0
  - install tyxml                   4.6.0
  - install uucp                    16.0.0
  - install uutf                    1.0.4
  - install variantslib             v0.17.0

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved angstrom.0.16.1  (cached)
-> retrieved astring.0.8.5  (cached)
-> retrieved backoff.0.1.1  (cached)
-> retrieved bigarray-compat.1.1.0  (cached)
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved base.v0.17.3  (cached)
-> retrieved camlp-streams.5.0.1  (cached)
-> retrieved camlzip.1.13  (cached)
-> installed conf-libcurl.2
-> retrieved cmdliner.1.3.0  (cached)
-> retrieved cppo.1.8.0  (cached)
-> 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 integers.0.7.0  (cached)
-> retrieved fmt.0.11.0  (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 dune.3.19.1, dune-configurator.3.19.1, dune-private-libs.3.19.1, dune-site.3.19.1, dyn.3.19.1, ordering.3.19.1, stdune.3.19.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved parsexp.v0.17.0  (cached)
-> retrieved pp.2.0.0  (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 ppx_compare.v0.17.0  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppx_enumerate.v0.17.0  (cached)
-> retrieved ppx_deriving.6.1.1  (cached)
-> retrieved ppx_expect.v0.17.3  (cached)
-> installed cmdliner.1.3.0
-> installed num.1.6
-> 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)
-> retrieved ppx_inline_test.v0.17.1  (cached)
-> retrieved ppx_optcomp.v0.17.1  (cached)
-> retrieved ppx_string.v0.17.0  (cached)
-> retrieved ppx_sexp_conv.v0.17.1  (cached)
-> retrieved ppx_variants_conv.v0.17.1  (cached)
-> retrieved ppxlib_jane.v0.17.4  (cached)
-> retrieved ppx_minidebug.2.3.0  (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.1.1.0  (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.1.1.0
-> installed uutf.1.0.4
-> installed mtime.2.1.0
-> installed fmt.0.11.0
-> installed ptime.1.2.0
-> installed astring.0.8.5
-> installed logs.0.9.0
-> installed dune.3.19.1
-> installed backoff.0.1.1
-> installed bigarray-compat.1.1.0
-> installed camlp-streams.5.0.1
-> installed csexp.1.5.2
-> installed cppo.1.8.0
-> installed csv.2.4
-> installed jane-street-headers.v0.17.0
-> 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 pp.2.0.0
-> installed pprint.20230830
-> installed ppx_derivers.1.2.1
-> 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 ordering.3.19.1
-> installed parsexp.v0.17.0
-> installed dune-configurator.3.19.1
-> installed mdx.2.5.0
-> installed bigstringaf.0.10.0
-> installed sexplib.v0.17.0
-> installed dyn.3.19.1
-> installed tyxml.4.6.0
-> installed angstrom.0.16.1
-> installed curl.0.10.0
-> installed printbox-html.0.12
-> installed stdune.3.19.1
-> installed base.v0.17.3
-> installed ctypes.0.23.0
-> installed fieldslib.v0.17.0
-> installed variantslib.v0.17.0
-> installed stdio.v0.17.0
-> installed dune-private-libs.3.19.1
-> installed ctypes-foreign.0.23.0
-> installed dune-site.3.19.1
-> installed ppxlib.0.36.0
-> installed uucp.16.0.0
-> installed ppxlib_jane.v0.17.4
-> installed ppx_optcomp.v0.17.1
-> installed printbox-text.0.12
-> installed ppx_cold.v0.17.0
-> installed ppx_here.v0.17.0
-> installed ppx_variants_conv.v0.17.1
-> installed printbox-md.0.12
-> installed ppx_fields_conv.v0.17.0
-> installed printbox-ext-plot.0.12
-> installed ppx_deriving.6.1.1
-> installed ppx_enumerate.v0.17.0
-> installed ppx_globalize.v0.17.2
-> 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)
2025-08-14 18:25.24 ---> using "a742e62c43f45cf2324586548346c7df05ba9ab17027e1d17ab7bd220074c3bf" from cache

/src: (copy (src .) (dst /src))
2025-08-14 18:25.24 ---> saved as "21968aa56cbf174bcb3517c4a9523ba69b7ad83550107a112f1b7ce344edd775"

/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)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
Wrote value of 'backend' to ocannl_backend.txt
(cd _build/default/test/operations && ./threefry4x32_demo.exe --ocannl_output_prec_in_ll_files=true --ocannl_output_debug_files_in_build_directory=true)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
Generated 48 uniform random numbers:
  [0]: 0.205322
  [1]: 0.188110
  [2]: 0.220215
  [3]: 0.073975
  [4]: 0.374023
  [5]: 0.494141
  [6]: 0.410400
  [7]: 0.102295
  [8]: 0.160400
  [9]: 0.635254
  [10]: 0.657715
  [11]: 0.580566
  [12]: 0.698730
  [13]: 0.979492
  [14]: 0.033386
  [15]: 0.711426
  [16]: 0.600098
  [17]: 0.772461
  [18]: 0.133789
  [19]: 0.799316
  [20]: 0.664062
  [21]: 0.045898
  [22]: 0.072632
  [23]: 0.610352
  [24]: 0.855469
  [25]: 0.286377
  [26]: 0.113281
  [27]: 0.690430
  [28]: 0.365479
  [29]: 0.236328
  [30]: 0.400146
  [31]: 0.354248
  [32]: 0.851562
  [33]: 0.613281
  [34]: 0.859863
  [35]: 0.624023
  [36]: 0.302246
  [37]: 0.005325
  [38]: 0.874023
  [39]: 0.461914
  [40]: 0.002930
  [41]: 0.811035
  [42]: 0.319824
  [43]: 0.088684
  [44]: 0.597656
  [45]: 0.608887
  [46]: 0.076538
  [47]: 0.784668
(cd _build/default/test/operations && ./top_down_prec.exe --ocannl_output_prec_in_ll_files=true --ocannl_output_debug_files_in_build_directory=true)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
                      #8 *._d
                       8.00
                      #9 grad_*._d Virt/30
                      <void>
             #6 + Virt/152                 │#4 c non-emb
             <void>                        │ 2.00
             #7 grad_+ Virt/30             │#5 grad_c Local/26030
             <void>                        │<void>
#0 a non-emb         │#2 b non-emb         │
 2.00                │ 2.00                │
#1 grad_a Local/26030│#3 grad_b Local/26030│
<void>               │<void>               │
(cd _build/.sandbox/0ae8c15465d1034e1ca076313860f214/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 -)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/ab4149faa654592d6fb15027a85b340c/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 -)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/0ae8c15465d1034e1ca076313860f214/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 -)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/ab4149faa654592d6fb15027a85b340c/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 -)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/default/test/operations && ./test_threefry_precision.exe)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
Threefry4x32 result precision: uint4x32
Uniform result precision: single
Retrieving commandline, environment, or config file variable ocannl_backend
Found sync_cc, in the config file
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_output_prec_in_ll_files
Not found, using default false
Retrieving commandline, environment, or config file variable ocannl_inline_complex_computations
Not found, using default true
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
Not found, using default false
Retrieving commandline, environment, or config file variable ocannl_stack_threshold_in_bytes
Not found, using default 16384
Retrieving commandline, environment, or config file variable ocannl_output_dlls_in_build_directory
Not found, using default false
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
Compilation successful!
Actual tensor precision in context: uint4x32
(cd _build/default/test/ppx && ./test_ppx_op_expected.exe)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/default/test/ppx && ./test_ppx_op.exe)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/0ae8c15465d1034e1ca076313860f214/default/test/operations && .operations_tutorials.inline-tests/inline-test-runner.exe inline-test-runner operations_tutorials -partition test_threefry4x32.ml -source-tree-root ../.. -diff-cmd -)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/ab4149faa654592d6fb15027a85b340c/default/test/einsum && .einsum_tutorials.inline-tests/inline-test-runner.exe inline-test-runner einsum_tutorials -partition surjectivity.ml -source-tree-root ../.. -diff-cmd -)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(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)
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 sync_cc, in the config file
Retrieving commandline, environment, or config file variable ocannl_never_capture_stdout
Not found, using default false
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_output_prec_in_ll_files
Not found, using default false
Retrieving commandline, environment, or config file variable ocannl_inline_complex_computations
Not found, using default true
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_stack_threshold_in_bytes
Not found, using default 16384
Retrieving commandline, environment, or config file variable ocannl_output_dlls_in_build_directory
Not found, using default false
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
HERE: test/operations/micrograd_demo_logging.ml:35:21
┌────────────────────┐
│[70]: +_g shape 0:1 │
│┌┬─────────┐        │
│││axis 0   │        │
│├┼─────────┤        │
│││ 2.47e+1 │        │
│└┴─────────┘        │
└────────────────────┘
HERE: test/operations/micrograd_demo_logging.ml:36:21
┌─────────────────┐
│[0]: a shape 0:1 │
│┌┬───────┐       │
│││axis 0 │       │
│├┼───────┤       │
│││ -4.00 │       │
│└┴───────┘       │
└─────────────────┘
┌────────────────────────┐
│[0]: a shape 0:1  grad_a│
│┌┬─────────┐            │
│││axis 0   │            │
│├┼─────────┤            │
│││ 1.38e+2 │            │
│└┴─────────┘            │
└────────────────────────┘
HERE: test/operations/micrograd_demo_logging.ml:37:21
┌─────────────────┐
│[2]: b shape 0:1 │
│┌┬──────┐        │
│││axis 0│        │
│├┼──────┤        │
│││ 2.00 │        │
│└┴──────┘        │
└─────────────────┘
┌────────────────────────┐
│[2]: b shape 0:1  grad_b│
│┌┬─────────┐            │
│││axis 0   │            │
│├┼─────────┤            │
│││ 6.45e+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 dec6b08..e722388 100644
--- a/_build/default/test/einsum/moons_demo_variant.expected
+++ b/_build/default/test/einsum/moons_demo_variant.exe.output
@@ -24,7 +24,7 @@ n19 w2 as w2: Host&stream/412410; single prec 1x16; mem in bytes: <not-in-yet>
 n20 grad_w2 as w2.grad: Local/26046; single prec 1x16; mem in bytes: <not-in-yet>
 n21 @|_moons_input as moons_input: Virt/15; single prec 10x2; mem in bytes: <not-in-yet>
 n24 @|_moons_class as moons_class: Virt/15; single prec 10x1; mem in bytes: <not-in-yet>
-n27 * as n27: Virt/151; single prec 10x16; mem in bytes: <not-in-yet>
+n27 * as n27: Virt/15; single prec 10x16; mem in bytes: <not-in-yet>
 n28 grad_* as n27.grad: Local/1046; single prec 10x16; mem in bytes: <not-in-yet>
 n29 + as n29: Virt/15; single prec 10x16; mem in bytes: <not-in-yet>
 n30 grad_+ as n29.grad: Virt/151; single prec 10x16; mem in bytes: <not-in-yet>
@@ -65,7 +65,7 @@ n66 sgd_momentum_w2 as sgd_momentum_w2: unknown; single prec <not-in-yet>; mem i
 n67 0.0001 as n67: Virt/40; single prec 1; mem in bytes: <not-in-yet>
 n68 *. as n68: Virt/15; single prec 1x16; mem in bytes: <not-in-yet>
 n69 point_mlp_result as point_mlp_result: Host&shared/37039; single prec 2; mem in bytes: <not-in-yet>
-n70 * as n70: Virt/151; single prec 16; mem in bytes: <not-in-yet>
+n70 * as n70: Virt/15; single prec 16; mem in bytes: <not-in-yet>
 n71 grad_* as n70.grad: unknown; single prec 16; mem in bytes: <not-in-yet>
 n72 + as n72: Virt/15; single prec 16; mem in bytes: <not-in-yet>
 n73 grad_+ as n72.grad: unknown; single prec 16; mem in bytes: <not-in-yet>
(cd _build/.sandbox/0ae8c15465d1034e1ca076313860f214/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 -)
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 7b623db..c2199a9 100644
--- a/_build/default/test/einsum/einsum_trivia_exec.expected
+++ b/_build/default/test/einsum/einsum_trivia_exec.exe.output
@@ -134,8 +134,8 @@ HERE: test/einsum/einsum_trivia_exec.ml:56:21
 │┌──────┬───────────────────────────┐│
 ││      │axis 1                     ││
 │├──────┼───────────────────────────┤│
-││axis 0│ 1.80e+1  2.20e+1  2.60e+1 ││
-││      │ 6.60e+1  7.00e+1  7.40e+1 ││
+││axis 0│ 9.00     1.00e+1  1.10e+1 ││
+││      │ 2.10e+1  2.20e+1  2.30e+1 ││
 │└──────┴───────────────────────────┘│
 └────────────────────────────────────┘
 HERE: test/einsum/einsum_trivia_exec.ml:64:21
@@ -145,11 +145,11 @@ HERE: test/einsum/einsum_trivia_exec.ml:64:21
 ││      │0 @ 0             │1 @ 0             │2 @ 0             │3 @ 0             ││
 ││      │axis 2            │axis 2            │axis 2            │axis 2            ││
 │├──────┼──────────────────┼──────────────────┼──────────────────┼──────────────────┤│
-││axis 1│ 1.57e+5  4.75e+5 │ 1.58e+5  4.75e+5 │ 1.58e+5  4.76e+5 │ 1.59e+5  4.76e+5 ││
-││      │ 1.57e+5  4.75e+5 │ 1.58e+5  4.75e+5 │ 1.58e+5  4.76e+5 │ 1.59e+5  4.77e+5 ││
-││      │ 1.57e+5  4.75e+5 │ 1.58e+5  4.75e+5 │ 1.59e+5  4.76e+5 │ 1.59e+5  4.77e+5 ││
-││      │ 1.57e+5  4.75e+5 │ 1.58e+5  4.76e+5 │ 1.59e+5  4.76e+5 │ 1.59e+5  4.77e+5 ││
-││      │ 1.58e+5  4.75e+5 │ 1.58e+5  4.76e+5 │ 1.59e+5  4.76e+5 │ 1.59e+5  4.77e+5 ││
+││axis 1│ 2.50e+3  5.02e+3 │ 2.50e+3  5.02e+3 │ 2.51e+3  5.03e+3 │ 2.51e+3  5.03e+3 ││
+││      │ 2.50e+3  5.02e+3 │ 2.50e+3  5.02e+3 │ 2.51e+3  5.03e+3 │ 2.51e+3  5.03e+3 ││
+││      │ 2.50e+3  5.02e+3 │ 2.50e+3  5.02e+3 │ 2.51e+3  5.03e+3 │ 2.51e+3  5.03e+3 ││
+││      │ 2.50e+3  5.02e+3 │ 2.50e+3  5.02e+3 │ 2.51e+3  5.03e+3 │ 2.51e+3  5.03e+3 ││
+││      │ 2.50e+3  5.02e+3 │ 2.50e+3  5.02e+3 │ 2.51e+3  5.03e+3 │ 2.51e+3  5.03e+3 ││
 │└──────┴──────────────────┴──────────────────┴──────────────────┴──────────────────┘│
 └────────────────────────────────────────────────────────────────────────────────────┘
 HERE: test/einsum/einsum_trivia_exec.ml:82:21
@@ -331,11 +331,11 @@ HERE: test/einsum/einsum_trivia_exec.ml:114:21
 ││      │0 @ 0                      │1 @ 0                      ││
 ││      │axis 2                     │axis 2                     ││
 │├──────┼───────────────────────────┼───────────────────────────┤│
-││axis 1│ 4.20e+1  4.80e+1  5.40e+1 │ 1.43e+3  1.52e+3  1.60e+3 ││
-││      │ 1.14e+2  1.36e+2  1.58e+2 │ 1.69e+3  1.80e+3  1.90e+3 ││
-││      │ 1.86e+2  2.24e+2  2.62e+2 │ 1.96e+3  2.08e+3  2.19e+3 ││
-││      │ 2.58e+2  3.12e+2  3.66e+2 │ 2.22e+3  2.36e+3  2.49e+3 ││
-││      │ 3.30e+2  4.00e+2  4.70e+2 │ 2.49e+3  2.64e+3  2.79e+3 ││
+││axis 1│ 2.70e+1  3.00e+1  3.30e+1 │ 4.83e+2  5.06e+2  5.29e+2 ││
+││      │ 6.30e+1  7.00e+1  7.70e+1 │ 5.67e+2  5.94e+2  6.21e+2 ││
+││      │ 9.90e+1  1.10e+2  1.21e+2 │ 6.51e+2  6.82e+2  7.13e+2 ││
+││      │ 1.35e+2  1.50e+2  1.65e+2 │ 7.35e+2  7.70e+2  8.05e+2 ││
+││      │ 1.71e+2  1.90e+2  2.09e+2 │ 8.19e+2  8.58e+2  8.97e+2 ││
 │└──────┴───────────────────────────┴───────────────────────────┘│
 └────────────────────────────────────────────────────────────────┘
 HERE: test/einsum/einsum_trivia_exec.ml:115:21
@@ -345,17 +345,17 @@ HERE: test/einsum/einsum_trivia_exec.ml:115:21
 ││      │0 @ 1                      │1 @ 1                      ││
 ││      │axis 3                     │axis 3                     ││
 │├──────┼───────────────────────────┼───────────────────────────┤│
-││0 @ 0 │ 4.20e+1  4.80e+1  5.40e+1 │ 4.02e+2  4.88e+2  5.74e+2 ││
-││axis 2│ 1.14e+2  1.36e+2  1.58e+2 │ 4.74e+2  5.76e+2  6.78e+2 ││
-││      │ 1.86e+2  2.24e+2  2.62e+2 │ 5.46e+2  6.64e+2  7.82e+2 ││
-││      │ 2.58e+2  3.12e+2  3.66e+2 │ 6.18e+2  7.52e+2  8.86e+2 ││
-││      │ 3.30e+2  4.00e+2  4.70e+2 │ 6.90e+2  8.40e+2  9.90e+2 ││
+││0 @ 0 │ 2.70e+1  3.00e+1  3.30e+1 │ 2.07e+2  2.30e+2  2.53e+2 ││
+││axis 2│ 6.30e+1  7.00e+1  7.70e+1 │ 2.43e+2  2.70e+2  2.97e+2 ││
+││      │ 9.90e+1  1.10e+2  1.21e+2 │ 2.79e+2  3.10e+2  3.41e+2 ││
+││      │ 1.35e+2  1.50e+2  1.65e+2 │ 3.15e+2  3.50e+2  3.85e+2 ││
+││      │ 1.71e+2  1.90e+2  2.09e+2 │ 3.51e+2  3.90e+2  4.29e+2 ││
 │├──────┼───────────────────────────┼───────────────────────────┤│
-││1 @ 0 │ 1.14e+2  1.20e+2  1.26e+2 │ 1.43e+3  1.52e+3  1.60e+3 ││
-││axis 2│ 3.78e+2  4.00e+2  4.22e+2 │ 1.69e+3  1.80e+3  1.90e+3 ││
-││      │ 6.42e+2  6.80e+2  7.18e+2 │ 1.96e+3  2.08e+3  2.19e+3 ││
-││      │ 9.06e+2  9.60e+2  1.01e+3 │ 2.22e+3  2.36e+3  2.49e+3 ││
-││      │ 1.17e+3  1.24e+3  1.31e+3 │ 2.49e+3  2.64e+3  2.79e+3 ││
+││1 @ 0 │ 6.30e+1  6.60e+1  6.90e+1 │ 4.83e+2  5.06e+2  5.29e+2 ││
+││axis 2│ 1.47e+2  1.54e+2  1.61e+2 │ 5.67e+2  5.94e+2  6.21e+2 ││
+││      │ 2.31e+2  2.42e+2  2.53e+2 │ 6.51e+2  6.82e+2  7.13e+2 ││
+││      │ 3.15e+2  3.30e+2  3.45e+2 │ 7.35e+2  7.70e+2  8.05e+2 ││
+││      │ 3.99e+2  4.18e+2  4.37e+2 │ 8.19e+2  8.58e+2  8.97e+2 ││
 │└──────┴───────────────────────────┴───────────────────────────┘│
 └────────────────────────────────────────────────────────────────┘
 HERE: test/einsum/einsum_trivia_exec.ml:116:21
@@ -364,11 +364,11 @@ HERE: test/einsum/einsum_trivia_exec.ml:116:21
 │┌──────┬───────────────────────────┐│
 ││      │axis 1                     ││
 │├──────┼───────────────────────────┤│
-││axis 0│ 1.47e+3  1.56e+3  1.66e+3 ││
-││      │ 1.81e+3  1.93e+3  2.06e+3 ││
-││      │ 2.14e+3  2.30e+3  2.46e+3 ││
-││      │ 2.48e+3  2.67e+3  2.86e+3 ││
-││      │ 2.82e+3  3.04e+3  3.26e+3 ││
+││axis 0│ 4.83e+2  5.06e+2  5.29e+2 ││
+││      │ 5.67e+2  5.94e+2  6.21e+2 ││
+││      │ 6.51e+2  6.82e+2  7.13e+2 ││
+││      │ 7.35e+2  7.70e+2  8.05e+2 ││
+││      │ 8.19e+2  8.58e+2  8.97e+2 ││
 │└──────┴───────────────────────────┘│
 └────────────────────────────────────┘
 HERE: test/einsum/einsum_trivia_exec.ml:117:21
@@ -377,11 +377,11 @@ HERE: test/einsum/einsum_trivia_exec.ml:117:21
 │┌──────┬───────────────────────────┐│
 ││      │axis 1                     ││
 │├──────┼───────────────────────────┤│
-││axis 0│ 1.99e+3  2.17e+3  2.36e+3 ││
-││      │ 2.66e+3  2.91e+3  3.16e+3 ││
-││      │ 3.33e+3  3.64e+3  3.96e+3 ││
-││      │ 4.00e+3  4.38e+3  4.76e+3 ││
-││      │ 4.68e+3  5.12e+3  5.56e+3 ││
+││axis 0│ 4.83e+2  5.06e+2  5.29e+2 ││
+││      │ 5.67e+2  5.94e+2  6.21e+2 ││
+││      │ 6.51e+2  6.82e+2  7.13e+2 ││
+││      │ 7.35e+2  7.70e+2  8.05e+2 ││
+││      │ 8.19e+2  8.58e+2  8.97e+2 ││
 │└──────┴───────────────────────────┘│
 └────────────────────────────────────┘
 HERE: test/einsum/einsum_trivia_exec.ml:134:21
@@ -537,9 +537,9 @@ HERE: test/einsum/einsum_trivia_exec.ml:147:21
 ││      │0 @ 0                                    │1 @ 0                                    │2 @ 0                                    │3 @ 0                                    │4 @ 0                                    ││
 ││      │axis 2                                   │axis 2                                   │axis 2                                   │axis 2                                   │axis 2                                   ││
 │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼─────────────────────────────────────────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-││axis 1│ 7.76e+4  7.86e+4  ...  8.24e+4  8.34e+4 │ 7.76e+4  7.86e+4  ...  8.24e+4  8.34e+4 │ 7.77e+4  7.86e+4  ...  8.25e+4  8.34e+4 │ 7.77e+4  7.87e+4  ...  8.25e+4  8.35e+4 │ 7.78e+4  7.87e+4  ...  8.26e+4  8.35e+4 ││
-││      │ 1.17e+5  1.18e+5  ...  1.22e+5  1.23e+5 │ 1.18e+5  1.18e+5  ...  1.22e+5  1.23e+5 │ 1.18e+5  1.19e+5  ...  1.22e+5  1.23e+5 │ 1.18e+5  1.19e+5  ...  1.22e+5  1.23e+5 │ 1.18e+5  1.19e+5  ...  1.22e+5  1.23e+5 ││
-││      │ 1.58e+5  1.59e+5  ...  1.63e+5  1.64e+5 │ 1.58e+5  1.59e+5  ...  1.63e+5  1.64e+5 │ 1.58e+5  1.59e+5  ...  1.63e+5  1.64e+5 │ 1.58e+5  1.59e+5  ...  1.63e+5  1.64e+5 │ 1.58e+5  1.59e+5  ...  1.63e+5  1.64e+5 ││
+││axis 1│ 3.23e+3  3.25e+3  ...  3.33e+3  3.35e+3 │ 3.23e+3  3.25e+3  ...  3.33e+3  3.35e+3 │ 3.23e+3  3.25e+3  ...  3.33e+3  3.35e+3 │ 3.23e+3  3.25e+3  ...  3.33e+3  3.35e+3 │ 3.23e+3  3.25e+3  ...  3.33e+3  3.35e+3 ││
+││      │ 4.07e+3  4.09e+3  ...  4.17e+3  4.19e+3 │ 4.07e+3  4.09e+3  ...  4.17e+3  4.19e+3 │ 4.07e+3  4.09e+3  ...  4.17e+3  4.19e+3 │ 4.07e+3  4.09e+3  ...  4.17e+3  4.19e+3 │ 4.07e+3  4.09e+3  ...  4.17e+3  4.19e+3 ││
+││      │ 4.91e+3  4.93e+3  ...  5.01e+3  5.03e+3 │ 4.91e+3  4.93e+3  ...  5.01e+3  5.03e+3 │ 4.91e+3  4.93e+3  ...  5.01e+3  5.03e+3 │ 4.91e+3  4.93e+3  ...  5.01e+3  5.03e+3 │ 4.91e+3  4.93e+3  ...  5.01e+3  5.03e+3 ││
 │└──────┴─────────────────────────────────────────┴─────────────────────────────────────────┴─────────────────────────────────────────┴─────────────────────────────────────────┴─────────────────────────────────────────┘│
 └──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
 HERE: test/einsum/einsum_trivia_exec.ml:150:21
@@ -548,18 +548,18 @@ HERE: test/einsum/einsum_trivia_exec.ml:150:21
 │┌┬────────────────────────────────────┐│
 │││axis 0                              ││
 │├┼────────────────────────────────────┤│
-│││ 4.20e+1  6.00e+1  7.80e+1  9.60e+1 ││
+│││ 1.40e+1  1.70e+1  2.00e+1  2.30e+1 ││
 │└┴────────────────────────────────────┘│
 └───────────────────────────────────────┘
 HERE: test/einsum/einsum_trivia_exec.ml:154:21
-┌───────────────────────────────────────┐
-│[8]: =>_ho6 shape 0:4                  │
-│┌┬────────────────────────────────────┐│
-│││axis 0                              ││
-│├┼────────────────────────────────────┤│
-│││ 1.20e+1  1.50e+1  1.80e+1  2.10e+1 ││
-│└┴────────────────────────────────────┘│
-└───────────────────────────────────────┘
+┌─────────────────────────────────┐
+│[8]: =>_ho6 shape 0:4            │
+│┌┬──────────────────────────────┐│
+│││axis 0                        ││
+│├┼──────────────────────────────┤│
+│││ 8.00  9.00  1.00e+1  1.10e+1 ││
+│└┴──────────────────────────────┘│
+└─────────────────────────────────┘
 HERE: test/einsum/einsum_trivia_exec.ml:159:21
 ┌─────────────────────────────────────────────┐
 │[10]: =>_ho7 shape 0:3,1:2,2:4               │
@@ -582,9 +582,9 @@ HERE: test/einsum/einsum_trivia_exec.ml:177:21
 │┌──────┬────────────────────────────────────┐│
 ││      │axis 1                              ││
 │├──────┼────────────────────────────────────┤│
-││axis 0│ 0.00     6.00     1.60e+1  3.00e+1 ││
-││      │ 8.00e+1  1.10e+2  1.44e+2  1.82e+2 ││
-││      │ 2.88e+2  3.42e+2  4.00e+2  4.62e+2 ││
+││axis 0│ 0.00     5.00     1.20e+1  2.10e+1 ││
+││      │ 4.80e+1  6.50e+1  8.40e+1  1.05e+2 ││
+││      │ 1.60e+2  1.89e+2  2.20e+2  2.53e+2 ││
 │└──────┴────────────────────────────────────┘│
 └─────────────────────────────────────────────┘
 HERE: test/einsum/einsum_trivia_exec.ml:183:21
@@ -817,10 +817,10 @@ HERE: test/einsum/einsum_trivia_exec.ml:278:21
 ││      │0 @ 0             │1 @ 0             │2 @ 0             ││
 ││      │axis 2            │axis 2            │axis 2            ││
 │├──────┼──────────────────┼──────────────────┼──────────────────┤│
-││axis 1│ 1.20e+1  4.80e+1 │ 9.00e+2  1.00e+3 │ 2.94e+3  3.12e+3 ││
-││      │ 1.05e+2  1.50e+2 │ 1.20e+3  1.32e+3 │ 3.46e+3  3.65e+3 ││
-││      │ 2.34e+2  2.88e+2 │ 1.55e+3  1.68e+3 │ 4.02e+3  4.22e+3 ││
-││      │ 3.99e+2  4.62e+2 │ 1.93e+3  2.07e+3 │ 4.62e+3  4.83e+3 ││
+││axis 1│ 8.00     2.00e+1 │ 3.12e+2  3.48e+2 │ 1.00e+3  1.06e+3 ││
+││      │ 4.00e+1  5.50e+1 │ 4.16e+2  4.55e+2 │ 1.17e+3  1.23e+3 ││
+││      │ 8.40e+1  1.02e+2 │ 5.32e+2  5.74e+2 │ 1.36e+3  1.43e+3 ││
+││      │ 1.40e+2  1.61e+2 │ 6.60e+2  7.05e+2 │ 1.56e+3  1.63e+3 ││
 │└──────┴──────────────────┴──────────────────┴──────────────────┘│
 └─────────────────────────────────────────────────────────────────┘
 HERE: test/einsum/einsum_trivia_exec.ml:296:21
(cd _build/.sandbox/0ae8c15465d1034e1ca076313860f214/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 -)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/ab4149faa654592d6fb15027a85b340c/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 -)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
File "test/einsum/surjectivity.ml", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/einsum/surjectivity.ml _build/.sandbox/ab4149faa654592d6fb15027a85b340c/default/test/einsum/surjectivity.ml.corrected
diff --git a/_build/default/test/einsum/surjectivity.ml b/_build/.sandbox/ab4149faa654592d6fb15027a85b340c/default/test/einsum/surjectivity.ml.corrected
index f413188..e1cdc46 100644
--- a/_build/default/test/einsum/surjectivity.ml
+++ b/_build/.sandbox/ab4149faa654592d6fb15027a85b340c/default/test/einsum/surjectivity.ml.corrected
@@ -66,7 +66,7 @@ let%expect_test "sparse_assignment_with_fixed_indices" =
   
   Train.printf ~here:[%here] ~with_code:false ~with_grad:false sparse;
   [%expect {|
-    HERE: test/einsum/surjectivity.ml:64:21
+    HERE: test/einsum/surjectivity.ml:67:21
     ┌─────────────────────────────────┐
     │[1]: =>_sparse shape 0:5,1:1,2:1 │
     │┌──────┬──────┐                  │
@@ -111,7 +111,7 @@ let%expect_test "multiple_sparse_axes" =
   
   Train.printf ~here:[%here] ~with_code:false ~with_grad:false sparse_multi;
   [%expect {|
-    HERE: test/einsum/surjectivity.ml:113:21
+    HERE: test/einsum/surjectivity.ml:112:21
     ┌───────────────────────────────────────────┐
     │[1]: =>_sparse_multi shape 0:3,1:2,2:4,3:3 │
     │┌──────┬──────────────────┐                │
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/ab4149faa654592d6fb15027a85b340c/default/test/einsum/einsum_trivia.ml.corrected
diff --git a/_build/default/test/einsum/einsum_trivia.ml b/_build/.sandbox/ab4149faa654592d6fb15027a85b340c/default/test/einsum/einsum_trivia.ml.corrected
index 2bcae70..3d0510d 100644
--- a/_build/default/test/einsum/einsum_trivia.ml
+++ b/_build/.sandbox/ab4149faa654592d6fb15027a85b340c/default/test/einsum/einsum_trivia.ml.corrected
@@ -181,8 +181,8 @@ let%expect_test "einsum1 sum out axes" =
     │┌──────┬───────────────────────────┐│
     ││      │axis 1                     ││
     │├──────┼───────────────────────────┤│
-    ││axis 0│ 1.80e+1  2.20e+1  2.60e+1 ││
-    ││      │ 6.60e+1  7.00e+1  7.40e+1 ││
+    ││axis 0│ 9.00     1.00e+1  1.10e+1 ││
+    ││      │ 2.10e+1  2.20e+1  2.30e+1 ││
     │└──────┴───────────────────────────┘│
     └────────────────────────────────────┘
     |}];
@@ -203,11 +203,11 @@ let%expect_test "einsum1 sum out axes" =
     ││      │0 @ 0             │1 @ 0             │2 @ 0             │3 @ 0             ││
     ││      │axis 2            │axis 2            │axis 2            │axis 2            ││
     │├──────┼──────────────────┼──────────────────┼──────────────────┼──────────────────┤│
-    ││axis 1│ 1.57e+5  4.75e+5 │ 1.58e+5  4.75e+5 │ 1.58e+5  4.76e+5 │ 1.59e+5  4.76e+5 ││
-    ││      │ 1.57e+5  4.75e+5 │ 1.58e+5  4.75e+5 │ 1.58e+5  4.76e+5 │ 1.59e+5  4.77e+5 ││
-    ││      │ 1.57e+5  4.75e+5 │ 1.58e+5  4.75e+5 │ 1.59e+5  4.76e+5 │ 1.59e+5  4.77e+5 ││
-    ││      │ 1.57e+5  4.75e+5 │ 1.58e+5  4.76e+5 │ 1.59e+5  4.76e+5 │ 1.59e+5  4.77e+5 ││
-    ││      │ 1.58e+5  4.75e+5 │ 1.58e+5  4.76e+5 │ 1.59e+5  4.76e+5 │ 1.59e+5  4.77e+5 ││
+    ││axis 1│ 2.50e+3  5.02e+3 │ 2.50e+3  5.02e+3 │ 2.51e+3  5.03e+3 │ 2.51e+3  5.03e+3 ││
+    ││      │ 2.50e+3  5.02e+3 │ 2.50e+3  5.02e+3 │ 2.51e+3  5.03e+3 │ 2.51e+3  5.03e+3 ││
+    ││      │ 2.50e+3  5.02e+3 │ 2.50e+3  5.02e+3 │ 2.51e+3  5.03e+3 │ 2.51e+3  5.03e+3 ││
+    ││      │ 2.50e+3  5.02e+3 │ 2.50e+3  5.02e+3 │ 2.51e+3  5.03e+3 │ 2.51e+3  5.03e+3 ││
+    ││      │ 2.50e+3  5.02e+3 │ 2.50e+3  5.02e+3 │ 2.51e+3  5.03e+3 │ 2.51e+3  5.03e+3 ││
     │└──────┴──────────────────┴──────────────────┴──────────────────┴──────────────────┘│
     └────────────────────────────────────────────────────────────────────────────────────┘
     |}]
@@ -451,11 +451,11 @@ let%expect_test "einsum matrix/inner+outer products" =
     ││      │0 @ 0                      │1 @ 0                      ││
     ││      │axis 2                     │axis 2                     ││
     │├──────┼───────────────────────────┼───────────────────────────┤│
-    ││axis 1│ 4.20e+1  4.80e+1  5.40e+1 │ 1.43e+3  1.52e+3  1.60e+3 ││
-    ││      │ 1.14e+2  1.36e+2  1.58e+2 │ 1.69e+3  1.80e+3  1.90e+3 ││
-    ││      │ 1.86e+2  2.24e+2  2.62e+2 │ 1.96e+3  2.08e+3  2.19e+3 ││
-    ││      │ 2.58e+2  3.12e+2  3.66e+2 │ 2.22e+3  2.36e+3  2.49e+3 ││
-    ││      │ 3.30e+2  4.00e+2  4.70e+2 │ 2.49e+3  2.64e+3  2.79e+3 ││
+    ││axis 1│ 2.70e+1  3.00e+1  3.30e+1 │ 4.83e+2  5.06e+2  5.29e+2 ││
+    ││      │ 6.30e+1  7.00e+1  7.70e+1 │ 5.67e+2  5.94e+2  6.21e+2 ││
+    ││      │ 9.90e+1  1.10e+2  1.21e+2 │ 6.51e+2  6.82e+2  7.13e+2 ││
+    ││      │ 1.35e+2  1.50e+2  1.65e+2 │ 7.35e+2  7.70e+2  8.05e+2 ││
+    ││      │ 1.71e+2  1.90e+2  2.09e+2 │ 8.19e+2  8.58e+2  8.97e+2 ││
     │└──────┴───────────────────────────┴───────────────────────────┘│
     └────────────────────────────────────────────────────────────────┘
     |}];
@@ -469,17 +469,17 @@ let%expect_test "einsum matrix/inner+outer products" =
     ││      │0 @ 1                      │1 @ 1                      ││
     ││      │axis 3                     │axis 3                     ││
     │├──────┼───────────────────────────┼───────────────────────────┤│
-    ││0 @ 0 │ 4.20e+1  4.80e+1  5.40e+1 │ 4.02e+2  4.88e+2  5.74e+2 ││
-    ││axis 2│ 1.14e+2  1.36e+2  1.58e+2 │ 4.74e+2  5.76e+2  6.78e+2 ││
-    ││      │ 1.86e+2  2.24e+2  2.62e+2 │ 5.46e+2  6.64e+2  7.82e+2 ││
-    ││      │ 2.58e+2  3.12e+2  3.66e+2 │ 6.18e+2  7.52e+2  8.86e+2 ││
-    ││      │ 3.30e+2  4.00e+2  4.70e+2 │ 6.90e+2  8.40e+2  9.90e+2 ││
+    ││0 @ 0 │ 2.70e+1  3.00e+1  3.30e+1 │ 2.07e+2  2.30e+2  2.53e+2 ││
+    ││axis 2│ 6.30e+1  7.00e+1  7.70e+1 │ 2.43e+2  2.70e+2  2.97e+2 ││
+    ││      │ 9.90e+1  1.10e+2  1.21e+2 │ 2.79e+2  3.10e+2  3.41e+2 ││
+    ││      │ 1.35e+2  1.50e+2  1.65e+2 │ 3.15e+2  3.50e+2  3.85e+2 ││
+    ││      │ 1.71e+2  1.90e+2  2.09e+2 │ 3.51e+2  3.90e+2  4.29e+2 ││
     │├──────┼───────────────────────────┼───────────────────────────┤│
-    ││1 @ 0 │ 1.14e+2  1.20e+2  1.26e+2 │ 1.43e+3  1.52e+3  1.60e+3 ││
-    ││axis 2│ 3.78e+2  4.00e+2  4.22e+2 │ 1.69e+3  1.80e+3  1.90e+3 ││
-    ││      │ 6.42e+2  6.80e+2  7.18e+2 │ 1.96e+3  2.08e+3  2.19e+3 ││
-    ││      │ 9.06e+2  9.60e+2  1.01e+3 │ 2.22e+3  2.36e+3  2.49e+3 ││
-    ││      │ 1.17e+3  1.24e+3  1.31e+3 │ 2.49e+3  2.64e+3  2.79e+3 ││
+    ││1 @ 0 │ 6.30e+1  6.60e+1  6.90e+1 │ 4.83e+2  5.06e+2  5.29e+2 ││
+    ││axis 2│ 1.47e+2  1.54e+2  1.61e+2 │ 5.67e+2  5.94e+2  6.21e+2 ││
+    ││      │ 2.31e+2  2.42e+2  2.53e+2 │ 6.51e+2  6.82e+2  7.13e+2 ││
+    ││      │ 3.15e+2  3.30e+2  3.45e+2 │ 7.35e+2  7.70e+2  8.05e+2 ││
+    ││      │ 3.99e+2  4.18e+2  4.37e+2 │ 8.19e+2  8.58e+2  8.97e+2 ││
     │└──────┴───────────────────────────┴───────────────────────────┘│
     └────────────────────────────────────────────────────────────────┘
     |}];
@@ -492,11 +492,11 @@ let%expect_test "einsum matrix/inner+outer products" =
     │┌──────┬───────────────────────────┐│
     ││      │axis 1                     ││
     │├──────┼───────────────────────────┤│
-    ││axis 0│ 1.47e+3  1.56e+3  1.66e+3 ││
-    ││      │ 1.81e+3  1.93e+3  2.06e+3 ││
-    ││      │ 2.14e+3  2.30e+3  2.46e+3 ││
-    ││      │ 2.48e+3  2.67e+3  2.86e+3 ││
-    ││      │ 2.82e+3  3.04e+3  3.26e+3 ││
+    ││axis 0│ 4.83e+2  5.06e+2  5.29e+2 ││
+    ││      │ 5.67e+2  5.94e+2  6.21e+2 ││
+    ││      │ 6.51e+2  6.82e+2  7.13e+2 ││
+    ││      │ 7.35e+2  7.70e+2  8.05e+2 ││
+    ││      │ 8.19e+2  8.58e+2  8.97e+2 ││
     │└──────┴───────────────────────────┘│
     └────────────────────────────────────┘
     |}];
@@ -509,11 +509,11 @@ let%expect_test "einsum matrix/inner+outer products" =
     │┌──────┬───────────────────────────┐│
     ││      │axis 1                     ││
     │├──────┼───────────────────────────┤│
-    ││axis 0│ 1.99e+3  2.17e+3  2.36e+3 ││
-    ││      │ 2.66e+3  2.91e+3  3.16e+3 ││
-    ││      │ 3.33e+3  3.64e+3  3.96e+3 ││
-    ││      │ 4.00e+3  4.38e+3  4.76e+3 ││
-    ││      │ 4.68e+3  5.12e+3  5.56e+3 ││
+    ││axis 0│ 4.83e+2  5.06e+2  5.29e+2 ││
+    ││      │ 5.67e+2  5.94e+2  6.21e+2 ││
+    ││      │ 6.51e+2  6.82e+2  7.13e+2 ││
+    ││      │ 7.35e+2  7.70e+2  8.05e+2 ││
+    ││      │ 8.19e+2  8.58e+2  8.97e+2 ││
     │└──────┴───────────────────────────┘│
     └────────────────────────────────────┘
     |}]
@@ -711,9 +711,9 @@ let%expect_test "einsum1 broadcast or sum out prefix axes" =
     ││      │0 @ 0                                    │1 @ 0                                    │2 @ 0                                    │3 @ 0                                    │4 @ 0                                    ││
     ││      │axis 2                                   │axis 2                                   │axis 2                                   │axis 2                                   │axis 2                                   ││
     │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼─────────────────────────────────────────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││axis 1│ 7.76e+4  7.86e+4  ...  8.24e+4  8.34e+4 │ 7.76e+4  7.86e+4  ...  8.24e+4  8.34e+4 │ 7.77e+4  7.86e+4  ...  8.25e+4  8.34e+4 │ 7.77e+4  7.87e+4  ...  8.25e+4  8.35e+4 │ 7.78e+4  7.87e+4  ...  8.26e+4  8.35e+4 ││
-    ││      │ 1.17e+5  1.18e+5  ...  1.22e+5  1.23e+5 │ 1.18e+5  1.18e+5  ...  1.22e+5  1.23e+5 │ 1.18e+5  1.19e+5  ...  1.22e+5  1.23e+5 │ 1.18e+5  1.19e+5  ...  1.22e+5  1.23e+5 │ 1.18e+5  1.19e+5  ...  1.22e+5  1.23e+5 ││
-    ││      │ 1.58e+5  1.59e+5  ...  1.63e+5  1.64e+5 │ 1.58e+5  1.59e+5  ...  1.63e+5  1.64e+5 │ 1.58e+5  1.59e+5  ...  1.63e+5  1.64e+5 │ 1.58e+5  1.59e+5  ...  1.63e+5  1.64e+5 │ 1.58e+5  1.59e+5  ...  1.63e+5  1.64e+5 ││
+    ││axis 1│ 3.23e+3  3.25e+3  ...  3.33e+3  3.35e+3 │ 3.23e+3  3.25e+3  ...  3.33e+3  3.35e+3 │ 3.23e+3  3.25e+3  ...  3.33e+3  3.35e+3 │ 3.23e+3  3.25e+3  ...  3.33e+3  3.35e+3 │ 3.23e+3  3.25e+3  ...  3.33e+3  3.35e+3 ││
+    ││      │ 4.07e+3  4.09e+3  ...  4.17e+3  4.19e+3 │ 4.07e+3  4.09e+3  ...  4.17e+3  4.19e+3 │ 4.07e+3  4.09e+3  ...  4.17e+3  4.19e+3 │ 4.07e+3  4.09e+3  ...  4.17e+3  4.19e+3 │ 4.07e+3  4.09e+3  ...  4.17e+3  4.19e+3 ││
+    ││      │ 4.91e+3  4.93e+3  ...  5.01e+3  5.03e+3 │ 4.91e+3  4.93e+3  ...  5.01e+3  5.03e+3 │ 4.91e+3  4.93e+3  ...  5.01e+3  5.03e+3 │ 4.91e+3  4.93e+3  ...  5.01e+3  5.03e+3 │ 4.91e+3  4.93e+3  ...  5.01e+3  5.03e+3 ││
     │└──────┴─────────────────────────────────────────┴─────────────────────────────────────────┴─────────────────────────────────────────┴─────────────────────────────────────────┴─────────────────────────────────────────┘│
     └──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
     |}];
@@ -734,7 +734,7 @@ let%expect_test "einsum1 broadcast or sum out prefix axes" =
     │┌┬────────────────────────────────────┐│
     │││axis 0                              ││
     │├┼────────────────────────────────────┤│
-    │││ 4.20e+1  6.00e+1  7.80e+1  9.60e+1 ││
+    │││ 1.40e+1  1.70e+1  2.00e+1  2.30e+1 ││
     │└┴────────────────────────────────────┘│
     └───────────────────────────────────────┘
     |}];
@@ -745,14 +745,14 @@ let%expect_test "einsum1 broadcast or sum out prefix axes" =
   [%expect
     {|
     HERE: test/einsum/einsum_trivia.ml:744:21
-    ┌───────────────────────────────────────┐
-    │[8]: =>_ho6 shape 0:4                  │
-    │┌┬────────────────────────────────────┐│
-    │││axis 0                              ││
-    │├┼────────────────────────────────────┤│
-    │││ 1.20e+1  1.50e+1  1.80e+1  2.10e+1 ││
-    │└┴────────────────────────────────────┘│
-    └───────────────────────────────────────┘
+    ┌─────────────────────────────────┐
+    │[8]: =>_ho6 shape 0:4            │
+    │┌┬──────────────────────────────┐│
+    │││axis 0                        ││
+    │├┼──────────────────────────────┤│
+    │││ 8.00  9.00  1.00e+1  1.10e+1 ││
+    │└┴──────────────────────────────┘│
+    └─────────────────────────────────┘
     |}];
   (* Broadcast with a shift. *)
   let hey4 = TDSL.range_of_shape ~input_dims:[ 2 ] ~output_dims:[ 3; 4 ] () in
@@ -804,9 +804,9 @@ let%expect_test "einsum broadcast or sum out prefix axes" =
     │┌──────┬────────────────────────────────────┐│
     ││      │axis 1                              ││
     │├──────┼────────────────────────────────────┤│
-    ││axis 0│ 0.00     6.00     1.60e+1  3.00e+1 ││
-    ││      │ 8.00e+1  1.10e+2  1.44e+2  1.82e+2 ││
-    ││      │ 2.88e+2  3.42e+2  4.00e+2  4.62e+2 ││
+    ││axis 0│ 0.00     5.00     1.20e+1  2.10e+1 ││
+    ││      │ 4.80e+1  6.50e+1  8.40e+1  1.05e+2 ││
+    ││      │ 1.60e+2  1.89e+2  2.20e+2  2.53e+2 ││
     │└──────┴────────────────────────────────────┘│
     └─────────────────────────────────────────────┘
     |}];
@@ -1169,10 +1169,10 @@ let%expect_test "einsum with a leftmost input axis preserved as output axis" =
     ││      │0 @ 0             │1 @ 0             │2 @ 0             ││
     ││      │axis 2            │axis 2            │axis 2            ││
     │├──────┼──────────────────┼──────────────────┼──────────────────┤│
-    ││axis 1│ 1.20e+1  4.80e+1 │ 9.00e+2  1.00e+3 │ 2.94e+3  3.12e+3 ││
-    ││      │ 1.05e+2  1.50e+2 │ 1.20e+3  1.32e+3 │ 3.46e+3  3.65e+3 ││
-    ││      │ 2.34e+2  2.88e+2 │ 1.55e+3  1.68e+3 │ 4.02e+3  4.22e+3 ││
-    ││      │ 3.99e+2  4.62e+2 │ 1.93e+3  2.07e+3 │ 4.62e+3  4.83e+3 ││
+    ││axis 1│ 8.00     2.00e+1 │ 3.12e+2  3.48e+2 │ 1.00e+3  1.06e+3 ││
+    ││      │ 4.00e+1  5.50e+1 │ 4.16e+2  4.55e+2 │ 1.17e+3  1.23e+3 ││
+    ││      │ 8.40e+1  1.02e+2 │ 5.32e+2  5.74e+2 │ 1.36e+3  1.43e+3 ││
+    ││      │ 1.40e+2  1.61e+2 │ 6.60e+2  7.05e+2 │ 1.56e+3  1.63e+3 ││
     │└──────┴──────────────────┴──────────────────┴──────────────────┘│
     └─────────────────────────────────────────────────────────────────┘
     |}]
(cd _build/.sandbox/0ae8c15465d1034e1ca076313860f214/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 -)
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
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/0ae8c15465d1034e1ca076313860f214/default/test/operations/zero2hero_1of7.ml.corrected
diff --git a/_build/default/test/operations/zero2hero_1of7.ml b/_build/.sandbox/0ae8c15465d1034e1ca076313860f214/default/test/operations/zero2hero_1of7.ml.corrected
index ffc9c4b..9114cb4 100644
--- a/_build/default/test/operations/zero2hero_1of7.ml
+++ b/_build/.sandbox/0ae8c15465d1034e1ca076313860f214/default/test/operations/zero2hero_1of7.ml.corrected
@@ -273,21 +273,21 @@ let%expect_test "Simple gradients hosted" =
   [%expect
     {|
                        #12 *._l
-                        0.00
+                        -2.07e-29
                        #13 grad_*._l
-                        0.00
+                        -2.07e-29
                  #8 +_d                   │#10 f non-emb
-                  0.00                    │ -2.00
+                  -2.07e-29               │ -2.00
                  #9 grad_+_d              │#11 grad_f
-                  0.00                    │ 0.00
+                  -3.14e-13               │ -2.07e-29
           #4 *._e            │#6 c non-emb│
-           0.00              │ 1.00e+1    │
+           -3.14e-13         │ 1.00e+1    │
           #5 grad_*._e       │#7 grad_c   │
-           0.00              │ 0.00       │
+           -2.07e-29         │ -2.07e-29  │
     #0 a non-emb│#2 b non-emb│            │
      2.00       │ -3.00      │            │
     #1 grad_a   │#3 grad_b   │            │
-     0.00       │ 0.00       │            │
+     -1.33e-4   │ -2.37e-4   │            │
     |}];
   (* Do not update the params: all values and gradients will be at initial points, which are
      specified in the tensor in the brackets. *)
@@ -403,21 +403,21 @@ let%expect_test "Simple gradients virtual" =
   [%expect
     {|
                    #12 *._l
-                    0.00
+                    -2.07e-29
                    #13 grad_*._l Virt/40
                    <void>
              #8 +_d Virt/152              │#10 f non-emb
              <void>                       │ -2.00
              #9 grad_+_d Virt/151         │#11 grad_f
-             <void>                       │ 0.00
+             <void>                       │ -2.07e-29
       #4 *._e Virt/152       │#6 c non-emb│
       <void>                 │ 1.00e+1    │
       #5 grad_*._e Virt/151  │#7 grad_c   │
-      <void>                 │ 0.00       │
+      <void>                 │ -2.30e-4   │
     #0 a non-emb│#2 b non-emb│            │
      2.00       │ -3.00      │            │
     #1 grad_a   │#3 grad_b   │            │
-     0.00       │ 0.00       │            │
+     -2.37e-4   │ -2.31e-4   │            │
     |}];
   (* Do not update the params: all values and gradients will be at initial points, which are
      specified in the tensor in the brackets. *)
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/0ae8c15465d1034e1ca076313860f214/default/test/operations/hello_world_op.ml.corrected
diff --git a/_build/default/test/operations/hello_world_op.ml b/_build/.sandbox/0ae8c15465d1034e1ca076313860f214/default/test/operations/hello_world_op.ml.corrected
index fb61675..5d55323 100644
--- a/_build/default/test/operations/hello_world_op.ml
+++ b/_build/.sandbox/0ae8c15465d1034e1ca076313860f214/default/test/operations/hello_world_op.ml.corrected
@@ -541,7 +541,7 @@ let%expect_test "Matrix multiplication dims 2x3" =
     │┌┬───────────────────────────┐│
     │││axis 0                     ││
     │├┼───────────────────────────┤│
-    │││ 3.90e+1  4.00e+1  4.10e+1 ││
+    │││ 2.50e+1  2.60e+1  2.70e+1 ││
     │└┴───────────────────────────┘│
     └──────────────────────────────┘
     |}]
@@ -589,7 +589,7 @@ let%expect_test "Big matrix" =
     │┌┬─────────────────────────────────────────┐│
     │││axis 0                                   ││
     │├┼─────────────────────────────────────────┤│
-    │││ 1.05e+2  1.06e+2  ...  1.24e+2  1.25e+2 ││
+    │││ 1.00e+1  1.10e+1  ...  2.90e+1  3.00e+1 ││
     │└┴─────────────────────────────────────────┘│
     └────────────────────────────────────────────┘
     |}]
@@ -760,11 +760,11 @@ let%expect_test "Very big tensor" =
     ││      │0 @ 0                                    │1 @ 0                                    │~~~~~ │4 @ 0                                    │5 @ 0                                    ││
     ││      │axis 2                                   │axis 2                                   │axis 2│axis 2                                   │axis 2                                   ││
     │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││axis 1│ 2.53e+5  7.61e+5  ...  4.82e+6  5.33e+6 │ 5.61e+7  5.66e+7  ...  6.07e+7  6.12e+7 │ ...  │ 2.23e+8  2.24e+8  ...  2.28e+8  2.28e+8 │ 2.79e+8  2.80e+8  ...  2.84e+8  2.84e+8 ││
-    ││      │ 5.84e+6  6.34e+6  ...  1.04e+7  1.09e+7 │ 6.17e+7  6.22e+7  ...  6.62e+7  6.68e+7 │      │ 2.29e+8  2.29e+8  ...  2.33e+8  2.34e+8 │ 2.85e+8  2.85e+8  ...  2.89e+8  2.90e+8 ││
+    ││axis 1│ 9.96e+2  2.00e+3  ...  1.00e+4  1.10e+4 │ 1.11e+5  1.12e+5  ...  1.20e+5  1.21e+5 │ ...  │ 4.44e+5  4.45e+5  ...  4.53e+5  4.54e+5 │ 5.55e+5  5.56e+5  ...  5.64e+5  5.65e+5 ││
+    ││      │ 1.20e+4  1.30e+4  ...  2.11e+4  2.21e+4 │ 1.22e+5  1.23e+5  ...  1.32e+5  1.33e+5 │      │ 4.55e+5  4.56e+5  ...  4.64e+5  4.65e+5 │ 5.66e+5  5.67e+5  ...  5.75e+5  5.76e+5 ││
     ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 4.49e+7  4.54e+7  ...  4.95e+7  5.00e+7 │ 1.00e+8  1.01e+8  ...  1.05e+8  1.05e+8 │      │ 2.68e+8  2.69e+8  ...  2.73e+8  2.73e+8 │ 3.24e+8  3.24e+8  ...  3.28e+8  3.29e+8 ││
-    ││      │ 5.05e+7  5.10e+7  ...  5.51e+7  5.56e+7 │ 1.06e+8  1.06e+8  ...  1.11e+8  1.11e+8 │      │ 2.74e+8  2.74e+8  ...  2.78e+8  2.79e+8 │ 3.29e+8  3.30e+8  ...  3.34e+8  3.35e+8 ││
+    ││      │ 8.97e+4  9.07e+4  ...  9.87e+4  9.97e+4 │ 2.00e+5  2.01e+5  ...  2.09e+5  2.10e+5 │      │ 5.33e+5  5.34e+5  ...  5.42e+5  5.43e+5 │ 6.44e+5  6.45e+5  ...  6.53e+5  6.54e+5 ││
+    ││      │ 1.00e+5  1.01e+5  ...  1.09e+5  1.10e+5 │ 2.11e+5  2.12e+5  ...  2.20e+5  2.21e+5 │      │ 5.44e+5  5.45e+5  ...  5.53e+5  5.54e+5 │ 6.55e+5  6.56e+5  ...  6.64e+5  6.65e+5 ││
     │└──────┴─────────────────────────────────────────┴─────────────────────────────────────────┴──────┴─────────────────────────────────────────┴─────────────────────────────────────────┘│
     └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
     |}]
File "test/training/moons_demo_mini.expected", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/training/moons_demo_mini.expected _build/default/test/training/moons_demo_mini.exe.output
diff --git a/_build/default/test/training/moons_demo_mini.expected b/_build/default/test/training/moons_demo_mini.exe.output
index ab15b52..3c6c79c 100644
--- a/_build/default/test/training/moons_demo_mini.expected
+++ b/_build/default/test/training/moons_demo_mini.exe.output
@@ -3,18 +3,18 @@ Found 0, in the config file
 Half-moons scatterplot and decision boundary:
 ┌─────────────────────────┐
 │*********#***************│
-│***###########********...│
-│**#############***.......│
-│*######%%*######.....%%%.│
-│#####**%%%..#####....%%%%│
-│####***%%%%..####...%%%%.│
-│###***.%%%%...###..%%%%%.│
-│###*....%%%%%%%##.%%%%%..│
-│***......%%%%%%%%%%%%%...│
-│**.........%%%%%%%%%%....│
+│***###########***********│
+│**#############**********│
+│*######%%*######*****%%%*│
+│#####..%%%..#####....%%%%│
+│####...%%%%..####...%%%%.│
+│###....%%%%...###..%%%%%.│
+│###.....%%%%%%%##.%%%%%..│
+│.........%%%%%%%%%%%%%...│
+│...........%%%%%%%%%%....│
 └─────────────────────────┘Loss:
 ┌─────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-│ 2.66│-                                                                                                   │
+│ 4.09│-                                                                                                   │
 │     │                                                                                                    │
 │     │                                                                                                    │
 │     │                                                                                                    │
@@ -23,82 +23,82 @@ Half-moons scatterplot and decision boundary:
 │     │                                                                                                    │
 │     │                                                                                                    │
 │     │                                                                                                    │
-│     │ -                                                                                                  │
 │     │                                                                                                    │
 │     │                                                                                                    │
 │     │                                                                                                    │
+│     │ -                                                                                                  │
 │     │                                                                                                    │
 │     │                                                                                                    │
 │     │                                                                                                    │
 │     │                                                                                                    │
 │     │                                                                                                    │
 │l    │                                                                                                    │
-│o    │  -                                                                                                 │
-│s    │   -                                                                                                │
+│o    │                                                                                                    │
 │s    │                                                                                                    │
+│s    │  -                                                                                              -  │
+│     │                                                                                                -   │
+│     │                                                                                                  - │
 │     │                                                                                                    │
-│     │                                                                                                    │
-│     │                                                                                                    │
+│     │   -                                                                                                │
+│     │                                                                                             -      │
 │     │                                                                                                    │
 │     │     -                                                                                              │
-│     │                                                                                                    │
-│     │                                                                                                    │
-│     │                                                                                                    │
-│     │                                                                                                    │
 │     │      -                                                                                             │
-│     │                                                                                                    │
-│     │       -  - -                                                                                       │
-│     │                -                                                                                   │
-│     │        -  -                                                                                        │
-│     │             - -  - -  -        -  -                                                            -   │
-│     │                                 -                                                                  │
-│     │                 -       ---        ---           -              -                 -                │
-│ 0.00│                     --     - --        ---- ----  --- ---- ----  --- ---- ---- ---  ---- ---- - -- │
+│     │       -- -                                                                                    -    │
+│     │           --                                                                              --       │
+│     │                                                                                        - -         │
+│     │             - -                                                                                    │
+│     │                 -                                                                                  │
+│     │                - - -                                                                               │
+│     │                                                                                   - ---            │
+│     │                     --                                                                             │
+│     │                       -                                                                            │
+│ 0.00│                         ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---                 │
 ├─────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
 │     │0.00                                                                                         7.90e+1│
 │     │                                                step                                                │
 └─────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘Log-loss, for better visibility:
 ┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-│ 9.79e-1 │-                                                                                                   │
+│ 1.41    │-                                                                                                   │
+│         │                                                                                                    │
 │         │ -                                                                                                  │
+│         │  -                                                                                             --- │
+│         │   -                                                                                         -      │
+│         │     ----                                                                                      -    │
+│         │          ---  -                                                                        - ---       │
+│         │             -   -                                                                                  │
+│         │                - - -                                                              - --             │
+│         │                                                                                       -            │
+│         │                     --                                                                             │
 │         │                                                                                                    │
-│         │  --                                                                                                │
-│         │     -                                                                                              │
-│         │                                                                                                    │
-│         │      -                                                                                             │
-│         │       -  - -   -                                                                                   │
-│         │        -  -                                                                                        │
-│         │             - -  - -  -        -  -                                                                │
-│         │                                 -                                                              -   │
-│         │                                     -            -                                -                │
-│         │                 -                  -                                                               │
-│         │                         ---          -                          -                                  │
-│         │                     -        -            - -  -  -   -                                            │
-│         │                                                          -                 -         -             │
-│l        │                      -                        -             -      -                   -  - -      │
-│o        │                                                                   -                                │
-│g        │                               -                              -                                     │
-│         │                                              -     -                        -            -      -  │
-│l        │                                        - -                    -                -                   │
-│o        │                                                         -                                          │
-│s        │                                                                      -                             │
-│s        │                                                        -   -          -                            │
+│         │                       -                                                                            │
+│         │                          -                                                 --    -                 │
+│         │                                                                                --                  │
+│         │                           -                                                  -                     │
+│l        │                                                                                                    │
+│o        │                                                                           -                        │
+│g        │                                                                                                    │
+│         │                         -                                                                          │
+│l        │                                                                        -                           │
+│o        │                                                                                                    │
+│s        │                                                                    -                               │
+│s        │                                                                         -                          │
 │         │                                                                                                    │
 │         │                                                                                                    │
 │         │                                                                                                    │
-│         │                                                                                       -            │
 │         │                                                                                                    │
 │         │                                                                                                    │
 │         │                                                                                                    │
 │         │                                                                                                    │
 │         │                                                                                                    │
+│         │                                          -                                                         │
 │         │                                                                                                    │
 │         │                                                                                                    │
 │         │                                                                                                    │
 │         │                                                                                                    │
 │         │                                                                                                    │
 │         │                                                                                                    │
-│ -1.00e+1│                            -            -           -            -     -- -  -  --  -      -  -  - │
+│ -1.00e+1│                            - ---- ---- -- - ---- ---- ---- ---- ---  --                            │
 ├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
 │         │0.00                                                                                         7.90e+1│
 │         │                                                step                                                │
File "test/training/bigram.expected", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/training/bigram.expected _build/default/test/training/bigram.exe.output
diff --git a/_build/default/test/training/bigram.expected b/_build/default/test/training/bigram.exe.output
index 30c1ff5..6a50710 100644
--- a/_build/default/test/training/bigram.expected
+++ b/_build/default/test/training/bigram.exe.output
@@ -14,9 +14,9 @@ input_size: 229000
 ││      │ 6.12e-1  5.62e-1  ...  4.71e-1  8.02e-1 ││
 │└──────┴─────────────────────────────────────────┘│
 └──────────────────────────────────────────────────┘
-Epoch 0, loss=2.952727
+Epoch 0, loss=3.312014
                                                                                                                                   #38 /._batch_loss
-                                                                                                                                   2.95
+                                                                                                                                   3.31
                                                                                                                                   #39 grad_/._batch_loss Virt/40
                                                                                                                                   <void>
                                                                                                                                #36 => Local/9046                                                                                                                                  │#35 1000 Virt/40
@@ -51,7 +51,7 @@ Epoch 0, loss=2.952727
                 │                                                   <void>                                                                          │                                                                                                                             │
                 │                                                   #17 grad_exp_counts Virt/151                                                    │                                                                                                                             │
                 │                                                   <void>                                                                          │                                                                                                                             │
-                │#14 * Virt/151                                                                                                                     │                                                                                                                             │
+                │#14 * Virt/15                                                                                                                      │                                                                                                                             │
                 │<void>                                                                                                                             │                                                                                                                             │
                 │#15 grad_* Local/1046                                                                                                              │                                                                                                                             │
                 │<void>                                                                                                                             │                                                                                                                             │
@@ -69,23 +69,23 @@ Epoch 0, loss=2.952727
                 │     0.00  0.00  ...  0.00  0.00 │ 0.00  0.00  ...  0.00  0.00 │     │ 0.00  0.00  ...  0.00  0.00 │ 0.00  0.00  ...  0.00  0.00   │                                                                                                                             │
                 │     ...   ...   ...  ...   ...  │ ...   ...   ...  ...   ...  │     │ ...   ...   ...  ...   ...  │ ...   ...   ...  ...   ...    │                                                                                                                             │
                 │     0.00  0.00  ...  0.00  0.00 │ 0.00  0.00  ...  1.00  0.00 │     │ 0.00  0.00  ...  0.00  0.00 │ 0.00  0.00  ...  0.00  1.00   │                                                                                                                             │
-                │     0.00  0.00  ...  0.00  0.00 │ 1.00  0.00  ...  0.00  0.00 │     │ 0.00  0.00  ...  0.00  0.00 │ 0.00  0.00  ...  0.00  0.00   │                                                                                                                             │wax
-ah
-rthttcadtw
-sshjod
-urisrrghnan
-wxicyrdgddawtfgbbleyqsi
-pj
-ds
-qlsa
-bsrie
-a
-kusad
-s
-maamh
+                │     0.00  0.00  ...  0.00  0.00 │ 1.00  0.00  ...  0.00  0.00 │     │ 0.00  0.00  ...  0.00  0.00 │ 0.00  0.00  ...  0.00  0.00   │                                                                                                                             │y
+x
+afbsvivud
+duw
+usinpc
+wsmusuiiqmojyxiexteiefaxsghcblgysrkarj
+eu
+skubacsrmi
 
-ad
-hurcuon
-bhdsz
-kwlw
-jharfchtjt
+
+nwtcd
+uaoebkl
+
+
+c
+ivretpngchitz
+lxkx
+kjeuicivlt
+zrgkttfanfivy
+jhjqfvahzckilgpxwkgnhltzkg
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 26ca5c7..d8911de 100644
--- a/_build/default/test/training/moons_demo_parallel.expected
+++ b/_build/default/test/training/moons_demo_parallel.exe.output
@@ -1,6 +1,6 @@
 Retrieving commandline, environment, or config file variable ocannl_log_level
 Found 0, in the config file
-Epoch loss: 10.801180
+Epoch loss: 40.000000
 
 Half-moons scatterplot and decision boundary:
 ┌────────────────────────────────────────────────────────────────────────────────────────────────────┐
@@ -9,91 +9,91 @@ Half-moons scatterplot and decision boundary:
 │*******************#******#*#**#**##**##*#**#***#***************************************************│
 │***************#********#***#**#**#**#*#*##**##**##*************************************************│
 │*************#****#*###**#*##*#*##***##*#######******#**********************************************│
-│*****************#*#****#***#***#*#*#*********#*##*##*********************************************..│
-│************#***##*###***#*#********#**#***##*#***##***#***************************************.....│
-│**********#***#****#####*#***###******#*#*#***#***#***#*##**#********************************.......│
-│***********####*#***#****#*#*****##****#**********##*************************************...........│
-│*********#****#***#**##*#*#*#*******#**##*#*##*##*#*#**#**##**************************..............│
-│**********#**#*###**#**********************#***#***#**#*##***#*********************.................│
-│***#**#****###*##*#*##************%************##*##**#*#*#*********************....................│
-│***#**#**#*#***###**#*#**********%******%********#***#****#****#*************.......................│
-│********#**###***#******************************#***#*#**#***###*********...............%.%....%....│
-│**#********####*#**#**********%******%*%************#**##***##***#****............................%.│
-│****##*****##****#************%******%****************#**#*#*#*##*#.............................%...│
-│***#*#**#***#*#****************%*%*****%*************#*##*#*#**..#...........................%.%.%..│
-│*#*#**#**#*#***#***************%*%*%%*%*****************###*....#.###...................%.%..%...%.%│
-│****##**##******************************%****************###.##..#.#.....................%%%..%.%%..│
-│***#***##*##*****************%*%%*%%%*%*************.....#.#.####.#.#...................%%%%.%..%...│
-│#*#*#*#**#*#*****************%****%*%*%%%******...........#.............................%....%.%.%..│
-│##*##***#**#*****************%***%%*%%**%*.%..................#...#.#............................%%.│
-│*#**#******#*********************%**%...%%..................##...#.###...............%.%%.%..%......│
-│#***#*##**#*********************.%...%...%.......................#..#.................%.%%.%%%..%%%.│
-│*#*##***##*****************......%.%%%.%....................###..#.##..................%.%%.........│
-│******#*#*************............%%.%.%%%%.........................#............%.%..%%..%..%......│
-│*****#****#******.....................%.%.%...................#....#..............%.%..%..%.%..%%%..│
-│*****##****.....................%...%...%%.%%..%...................#............%....%%%.%%..%......│
-│******............................%..%.%%.%%.%..%%.%%...........#.##..............%%%%.........%....│
-│*..................................%%..%...%..%%%%..........................%%%.....%.%..%.%........│
-│......................................%..%.%..%..%....................%..%..%%%%.%.%%%%%...%%.......│
-│....................................%%...%%%.%%%%.%.%.%%.....%...........%.%%%%%.%....%.%...........│
-│........................................%..%.......%.%%%....%%.%..%%%.%%..%.%.%.%..%................│
-│........................................%...%%..%....%..%%.%%.%.%....%....%%%..%.%%..%.%............│
-│...........................................%%....%..%.%%%..%%%....%%.%...%%...%%...%%...%%..........│
-│.............................................%.%..%..%%%%%.%....%%...%%.%..%..%....%................│
-│...........................................%............%..%%.....%%..%.%.%....%....................│
-│...................................................%...%.%..%.%.......%%...%........................│
-│........................................................%%%.....%.%..%..%.....%..%..................│
-│......................................................%....%%%%.%.%.%....%..........................│
+│*****************#*#****#***#***#*#*#*********#*##*##***********************************************│
+│************#***##*###***#*#********#**#***##*#***##***#********************************************│
+│**********#***#****#####*#***###******#*#*#***#***#***#*##**#***************************************│
+│***********####*#***#****#*#*****##****#**********##************************************************│
+│*********#****#***#**##*#*#*#*******#**##*#*##*##*#*#**#**##****************************************│
+│**********#**#*###**#**********************#***#***#**#*##***#**************************************│
+│***#**#****###*##*#*##************%************##*##**#*#*#*****************************************│
+│***#**#**#*#***###**#*#**********%******%********#***#****#****#************************************│
+│********#**###***#******************************#***#*#**#***###************************%*%****%****│
+│**#********####*#**#**********%******%*%************#**##***##***#********************************%*│
+│****##*****##****#************%******%****************#**#*#*#*##*#*****************************%***│
+│***#*#**#***#*#****************%*%*****%*************#*##*#*#****#***************************%*%*%**│
+│*#*#**#**#*#***#***************%*%*%%*%*****************###*****#*###*******************%*%**%***%*%│
+│****##**##******************************%****************###*##**#*#*********************%%%**%*%%**│
+│***#***##*##*****************%*%%*%%%*%******************#*#*####*#*#*******************%%%%*%**%***│
+│#*#*#*#**#*#*****************%****%*%*%%%*****************#*****************************%****%*%*%**│
+│##*##***#**#*****************%***%%*%%**%**%******************#***#*#****************************%%*│
+│*#**#******#*********************%**%***%%******************##***#*###***************%*%%*%**%******│
+│#***#*##**#**********************%***%***%***********************#**#*****************%*%%*%%%**%%%*│
+│*#*##***##***********************%*%%%*%********************###**#*##******************%*%%*********│
+│******#*#*************************%%*%*%%%%*************************#************%*%**%%**%**%******│
+│*****#****#***************************%*%*%*******************#****#**************%*%**%**%*%**%%%**│
+│*****##*************************%***%***%%*%%**%*******************#************%****%%%*%%**%******│
+│**********************************%**%*%%*%%*%**%%*%%***********#*##**************%%%%*********%****│
+│***********************************%%**%***%**%%%%**************************%%%*****%*%**%*%********│
+│**************************************%**%*%**%**%********************%**%**%%%%*%*%%%%%***%%*******│
+│************************************%%***%%%*%%%%*%*%*%%*****%***********%*%%%%%*%****%*%***********│
+│****************************************%**%*******%*%%%****%%*%**%%%*%%**%*%*%*%**%****************│
+│****************************************%***%%**%****%**%%*%%*%*%****%****%%%**%*%%**%*%************│
+│*******************************************%%****%**%*%%%**%%%****%%*%***%%***%%***%%***%%**********│
+│*********************************************%*%**%**%%%%%*%****%%***%%*%**%**%****%****************│
+│*******************************************%************%**%%*****%%**%*%*%****%********************│
+│***************************************************%***%*%**%*%*******%%***%************************│
+│********************************************************%%%*****%*%**%**%*****%**%******************│
+│******************************************************%****%%%%*%*%*%****%**************************│
 └────────────────────────────────────────────────────────────────────────────────────────────────────┘
 Batch Log-loss:
-┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-│ 3.84    │-                                                                                                   │
-│         │                                                                                                    │
-│         │                                                                                                    │
-│         │-                                                                                                   │
-│         │                                                                                                    │
-│         │                                                                                                    │
-│         │ - -                --                                                                              │
-│         │  -  ---- ---- ----   -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- │
-│         │ -                               - ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- │
-│         │------------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- │
-│         │-         -        - -- ---- ---- ----  ---- ---- ---- ---- ---- ----                               │
-│         │-   -- - - -- ----                     ---- ---                       ---- ---- ---- ---- ---- ---  │
-│         │---   -            --   -                      - ---- ---  --                                     - │
-│b        │                     --  ---                             -   -- - -- - -- --- -                     │
-│a        │- -  -                       -- -                  - -   --   ------ ------ -- ---------------------│
-│t        │ -     -                 --    -  ----      -  ---  - - -  - -      -        -                     -│
-│c        │  - - -- -- ---      ---- ---- ---- ----  --- -- - -  -  -   -  -    -                              │
-│h        │ -  -  --  --   ---   - -  --- -    -   --      -   --  - --  --  ---  ---- ---- ---- ----          │
-│         │   -  - -- -  ------ -            -  -   -                                                 ---- ----│
-│l        │   -     - - -- - - -       --      - --  - -  - - -      -                 -                       │
-│o        │      ---        -             ---       - -- - --  --- -- - ---- -- -       -         -    -       │
-│g        │   --       -        -    -                                         -  ---- -  -    - - -- - -    --│
-│         │                   -       -              -   -                      -        -  ---          - --  │
-│l        │                        -                    --    -                                             -  │
-│o        │-                      -                       -    -                                               │
-│s        │                      -                           -                                                 │
-│s        │ -  -                                    -       -     -                                     -     -│
-│         │        -       -                           -      -  -  -                                    - -   │
-│         │                                       -            -       -                                       │
-│         │                                                             -                                    - │
-│         │                                          -    -                     -                              │
-│         │              -                                                                                     │
-│         │                                                -          -                                        │
-│         │            -                                           -                                           │
-│         │                                           -                                                        │
-│         │                                                     -                                              │
-│         │                                                                                                    │
-│         │                                                                                                    │
-│         │                                    -                                                               │
-│ -1.04e+1│ ---------------------------------------------------------------------------------------------------│
-├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-│         │0.00                                                                                         1.59e+3│
-│         │                                                step                                                │
-└─────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
+┌────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
+│ 1.65   │-                                                                                                   │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│b       │                                                                                                    │
+│a       │                                                                                                    │
+│t       │                                                                                                    │
+│c       │                                                                                                    │
+│h       │                                                                                                    │
+│        │                                                                                                    │
+│l       │                                                                                                    │
+│o       │                                                                                                    │
+│g       │                                                                                                    │
+│        │                                                                                                    │
+│l       │                                                                                                    │
+│o       │                                                                                                    │
+│s       │                                                                                                    │
+│s       │-                                                                                                   │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│        │                                                                                                    │
+│ 6.93e-1│----------------------------------------------------------------------------------------------------│
+├────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
+│        │0.00                                                                                         1.59e+3│
+│        │                                                step                                                │
+└────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
 Epoch Log-loss:
 ┌─────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-│ 4.38│-                                                                                                   │
+│ 3.78│-                                                                                                   │
 │     │                                                                                                    │
 │     │                                                                                                    │
 │     │                                                                                                    │
@@ -124,15 +124,15 @@ Epoch Log-loss:
 │     │                                                                                                    │
 │     │                                                                                                    │
 │     │                                                                                                    │
-│     │ -                                                                                                  │
 │     │                                                                                                    │
-│     │   -      -                                                                                         │
-│     │  -  ----  --- ---- --   --                                                                         │
-│     │                      --   -- ----                                                                  │
-│     │                                   ---- ---- ---                                                    │
-│     │                                                - ---- ---- ---  -                                  │
-│     │                                                               -  --- ---- ---  ---                 │
-│ 2.37│                                                                              -    - ---- ---- ---- │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│ 3.68│ --- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- │
 ├─────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
 │     │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 a39bfc5..b636856 100644
--- a/_build/default/test/training/moons_demo.expected
+++ b/_build/default/test/training/moons_demo.exe.output
@@ -4,135 +4,135 @@ Half-moons scatterplot and decision boundary:
 ┌────────────────────────────────────────────────────────────────────────────────────────────────────┐
 │****************************************#***********************************************************│
 │********************************##*#*******#********************************************************│
-│*******************#******#*#**#**##**##*#**#***#************************************...............│
-│***************#********#***#**#**#**#*#*##**##**##*****************************....................│
-│*************#****#*###**#*##*#*##***##*#######******#**********************........................│
-│*****************#*#****#***#***#*#*#*********#*##*##*******************............................│
-│************#***##*###***#*#********#**#***##*#***##***#*************...............................│
-│**********#***#****#####*#***###******#*#*#***#***#***#*##**#****...................................│
-│***********####*#***#****#*#*****##****#**********##**********......................................│
-│*********#****#***#**##*#*#*#*......#**##*#*##*##*#*#**#**##........................................│
-│**********#**#*###**#*******...........****#***#***#**#*##...#......................................│
-│***#**#****###*##*#*##*****.......%......******##*##**#.#.#.........................................│
-│***#**#**#*#***###**#*#**........%......%....****#***#....#....#....................................│
-│********#**###***#******........................#***#*#..#...###........................%.%....%....│
-│**#********####*#**#***.......%......%.%..........**#**##...##...#................................%.│
-│****##*****##****#*****.......%......%..............**#**#.#.#.##.#.............................%...│
-│***#*#**#***#*#*******.........%.%.....%.............#*##*#*#....#...........................%.%.%..│
-│*#*#**#**#*#***#******.........%.%.%%.%................*###****.#.###...................%.%..%...%.%│
-│****##**##***********...................%................###*##*.#.#.....................%%%..%.%%..│
-│***#***##*##********.........%.%%.%%%.%..................#.#*####.#.#...................%%%%.%..%...│
-│#*#*#*#**#*#********.........%....%.%.%%%.................#...**........................%....%.%.%..│
-│##*##***#**#*******..........%...%%.%%..%..%..................#...#.#............................%%.│
-│*#**#******#*******..............%..%...%%..................##...#.###...............%.%%.%..%......│
-│#***#*##**#*******...............%...%...%.......................#..#.................%.%%.%%%..%%%.│
-│*#*##***##*******................%.%%%.%....................###..#.##..................%.%%.........│
-│******#*#********.................%%.%.%%%%.........................#............%.%..%%..%..%......│
-│*****#****#*****......................%.%.%...................#....#..............%.%..%..%.%..%%%..│
-│*****##*********................%...%...%%.%%..%...................#............%....%%%.%%..%......│
-│***************...................%..%.%%.%%.%..%%.%%...........#.##..............%%%%.........%....│
-│***************....................%%..%...%..%%%%..........................%%%.....%.%..%.%........│
-│**************........................%..%.%..%..%....................%..%..%%%%.%.%%%%%...%%.......│
-│*************.......................%%...%%%.%%%%.%.%.%%.....%...........%.%%%%%.%....%.%...........│
-│*************...........................%..%.......%.%%%....%%.%..%%%.%%..%.%.%.%..%................│
-│************............................%...%%..%....%..%%.%%.%.%....%....%%%..%.%%..%.%............│
-│************...............................%%....%..%.%%%..%%%....%%.%...%%...%%...%%...%%..........│
-│***********..................................%.%..%..%%%%%.%....%%...%%.%..%..%....%................│
-│***********................................%............%..%%.....%%..%.%.%....%....................│
-│**********.........................................%...%.%..%.%.......%%...%........................│
-│**********..............................................%%%.....%.%..%..%.....%..%..................│
-│*********.............................................%....%%%%.%.%.%....%..........................│
+│*******************#******#*#**#**##**##*#**#***#***************************************************│
+│***************#********#***#**#**#**#*#*##**##**##*************************************************│
+│*************#****#*###**#*##*#*##***##*#######******#**********************************************│
+│*****************#*#****#***#***#*#*#*********#*##*##***********************************************│
+│************#***##*###***#*#********#**#***##*#***##***#********************************************│
+│**********#***#****#####*#***###******#*#*#***#***#***#*##**#***************************************│
+│***********####*#***#****#*#*****##****#**********##************************************************│
+│*********#****#***#**##*#*#*#*******#**##*#*##*##*#*#**#**##****************************************│
+│**********#**#*###**#**********************#***#***#**#*##***#**************************************│
+│***#**#****###*##*#*##************%************##*##**#*#*#*****************************************│
+│***#**#**#*#***###**#*#**********%******%********#***#****#****#************************************│
+│********#**###***#******************************#***#*#**#***###************************%*%****%****│
+│**#********####*#**#**********%******%*%************#**##***##***#********************************%*│
+│****##*****##****#************%******%****************#**#*#*#*##*#*****************************%***│
+│***#*#**#***#*#****************%*%*****%*************#*##*#*#****#***************************%*%*%**│
+│*#*#**#**#*#***#***************%*%*%%*%*****************###*****#*###*******************%*%**%***%*%│
+│****##**##******************************%****************###*##**#*#*********************%%%**%*%%**│
+│***#***##*##*****************%*%%*%%%*%******************#*#*####*#*#*******************%%%%*%**%***│
+│#*#*#*#**#*#*****************%****%*%*%%%*****************#*****************************%****%*%*%**│
+│##*##***#**#*****************%***%%*%%**%**%******************#***#*#****************************%%*│
+│*#**#******#*********************%**%***%%******************##***#*###***************%*%%*%**%******│
+│#***#*##**#**********************%***%***%***********************#**#*****************%*%%*%%%**%%%*│
+│*#*##***##***********************%*%%%*%********************###**#*##******************%*%%*********│
+│******#*#*************************%%*%*%%%%*************************#************%*%**%%**%**%******│
+│*****#****#***************************%*%*%*******************#****#**************%*%**%**%*%**%%%**│
+│*****##*************************%***%***%%*%%**%*******************#************%****%%%*%%**%******│
+│**********************************%**%*%%*%%*%**%%*%%***********#*##**************%%%%*********%****│
+│***********************************%%**%***%**%%%%**************************%%%*****%*%**%*%********│
+│**************************************%**%*%**%**%********************%**%**%%%%*%*%%%%%***%%*******│
+│************************************%%***%%%*%%%%*%*%*%%*****%***********%*%%%%%*%****%*%***********│
+│****************************************%**%*******%*%%%****%%*%**%%%*%%**%*%*%*%**%****************│
+│****************************************%***%%**%****%**%%*%%*%*%****%****%%%**%*%%**%*%************│
+│*******************************************%%****%**%*%%%**%%%****%%*%***%%***%%***%%***%%**********│
+│*********************************************%*%**%**%%%%%*%****%%***%%*%**%**%****%****************│
+│*******************************************%************%**%%*****%%**%*%*%****%********************│
+│***************************************************%***%*%**%*%*******%%***%************************│
+│********************************************************%%%*****%*%**%**%*****%**%******************│
+│******************************************************%****%%%%*%*%*%****%**************************│
 └────────────────────────────────────────────────────────────────────────────────────────────────────┘Loss:
-┌────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-│ 2.61e+1│-                                                                                                   │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│l       │                                                                                                    │
-│o       │                                                                                                    │
-│s       │                                                                                                    │
-│s       │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │                                                                                                    │
-│        │ --                   -                                                                             │
-│        │-     ---    - ---     -                                                                            │
-│        │   - - -   --  - -- -- - ----  -   ---    --       --                                               │
-│        │----  - - - --  - - - -- ---- - --    - --   ---- ---- ---- ---- ---   -                            │
-│        │-------------- ---- ---- ---- ---- --    --- ---- - -- ---- ---- ---- ---- ---- ---- ---- ---- ---- │
-│ 0.00   │----------------------------------------------------------------------------------------------------│
-├────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-│        │0.00                                                                                         6.39e+3│
-│        │                                                step                                                │
-└────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘Log-loss, for better visibility:
-┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-│ 3.26    │-                                                                                                   │
-│         │                                                                                                    │
-│         │                                                                                                    │
-│         │                                                                                                    │
-│         │                                                                                                    │
-│         │                                                                                                    │
-│         │ --                   -                                                                             │
-│         │-  -  ---   -- ---- -  -           -                                                                │
-│         │     ---  -- - ---   --- ---- ----  --- ---- ---- ---- -                                            │
-│         │---- ---- - -     - -  - ---- --                  ---  ---- ---- ---- ---- -- - ----    -   -    -  │
-│         │ --- --------- ---- -- - ---- - -- -       - ----    -  --- ---- ---- ---- ---- ---- ---- ---- ---- │
-│         │-------- ----  ---- ---- ---- --    ---  --         -                                               │
-│         │--   - -   --- ---  ---  -  -           -         -- -                                              │
-│         │--   --- - --  -  -   --  -   --              ---  --- ----    -  -                                 │
-│         │--- ----  - --   -   ---       -           - -    -- -      ---  - --  -                            │
-│         │--  -  - -    -  --  -      -  --               -   -  -            - - -- ---        -   -  -  - - │
-│l        │- - - -- -  -  ---  -  - -- -  --  -  ----- --   -  -   --  -   ---   - ------- ---- --------  - -  │
-│o        │- ---- ---- -- ------ - -  -   -- ----- -- -  ---------- -- ---- ------- ---- -- ------ - -- - -- - │
-│g        │  - --  ---- ------ - ----- -  ---- -   -- -- - ---  ---- ---- ----  -- --   - ------------- ----- -│
-│         │- - -- --  ------ -- -  ----  - -- --    --  -- -  - - ------  -    - - ---- -- -  - - -- - ---   --│
-│l        │---    --  - ---- - -  --- ---   -- - -   --  --- -------- -------    - -   - --- -----  - -------  │
-│o        │- - -  --  ----- - - ---- - --  - - -- --- -- -  ------   ---- ---- - ---- -           --        - -│
-│s        │-      --------- -  --  ----  ---- -- -  -- ----  -- ---- -   -- - -----   -- - -   -       -     --│
-│s        │    ----   - -------- --  -----   -    -- -  -  -  - --- --   -- -- -    ---  -      -  ---  - -  - │
-│         │  - --   ------ - - --   -- ----- -- --     -  ---- ----  --    -  ---     - - -  - -- -  --  ---   │
-│         │-- --   -  --      -  - -  - -  - ---       -  - -- -   -  --  -- - - - -    -  -  -  ----      -  -│
-│         │--- -- -   - - -       -  -        ----  ----   ---  ---        --  -- -  -    --   -- -  -  - -  --│
-│         │ -  -       -      ---   -   -  --  -                 -  - -     - -           -   -      -   -     │
-│         │    --  ---    -          - - -            -    -    --       --       -----       -              - │
-│         │  - -      -       -        - - - -              -            -         --       -       -          │
-│         │ -          -                 --                -       -   -      -     -    -             - -  -  │
-│         │  -          -   -                                     -                -                     -     │
-│         │   -      -                       -                            -                                    │
-│         │   -                                           -             -                                      │
-│         │    -               -                                 -                                             │
-│         │                                                                                                    │
-│         │                            -                                                   -                   │
-│         │                                  -   -                                                             │
-│         │                                                                                                    │
-│ -1.00e+1│----------------------------------------------------------------------------------------------------│
-├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-│         │0.00                                                                                         6.39e+3│
-│         │                                                step                                                │
-└─────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
+┌─────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
+│ 3.24│-                                                                                                   │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│l    │-                                                                                                   │
+│o    │                                                                                                    │
+│s    │                                                                                                    │
+│s    │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │-                                                                                                   │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │-                                                                                                   │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │-                                                                                                   │
+│ 1.00│----------------------------------------------------------------------------------------------------│
+├─────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
+│     │0.00                                                                                         6.39e+3│
+│     │                                                step                                                │
+└─────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘Log-loss, for better visibility:
+┌─────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
+│ 1.17│-                                                                                                   │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │-                                                                                                   │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│l    │                                                                                                    │
+│o    │                                                                                                    │
+│g    │                                                                                                    │
+│     │                                                                                                    │
+│l    │-                                                                                                   │
+│o    │                                                                                                    │
+│s    │                                                                                                    │
+│s    │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │-                                                                                                   │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│     │-                                                                                                   │
+│     │                                                                                                    │
+│     │                                                                                                    │
+│ 0.00│----------------------------------------------------------------------------------------------------│
+├─────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
+│     │0.00                                                                                         6.39e+3│
+│     │                                                step                                                │
+└─────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
 Learning rate:
 ┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
 │ -1.00e-1│                                                                                                   -│
"/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1
2025-08-14 18:28.55: Job failed: Failed: Build failed