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keras: 1.0.3 -> 1.1.1 #20798

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keras: 1.0.3 -> 1.1.1 #20798

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tindzk
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@tindzk tindzk commented Nov 29, 2016

Motivation for this change

This updates Keras and its dependencies to support the latest Python and CUDA versions.

As of now, only the TensorFlow backend can be used (requires #20794). When using the Theano backend, it crashes with the following message:

Using Theano backend.
ERROR (theano.sandbox.cuda): Failed to compile cuda_ndarray.cu: libcublas.so.8.0: cannot open shared object file: No such file or directory
WARNING (theano.sandbox.cuda): CUDA is installed, but device gpu0 is not available  (error: cuda unavailable)

Trying to set the missing paths, leads to a segmentation fault:

$ result/bin/bash
$ export CUDA_HOME=/nix/store/f4lxdw6pjbj40dic2p546nc05afqvgjx-cudatoolkit-8.0.44/
$ export LD_LIBRARY_PATH=/nix/store/f4lxdw6pjbj40dic2p546nc05afqvgjx-cudatoolkit-8.0.44/lib64/
$ python -m theano
*** Error in `python': free(): invalid pointer: 0x00007f42dd4fa380 ***
======= Backtrace: =========
/usr/lib/libc.so.6(+0x70c4b)[0x7f42fefb3c4b]
/usr/lib/libc.so.6(+0x76fe6)[0x7f42fefb9fe6]
/usr/lib/libc.so.6(+0x777de)[0x7f42fefba7de]
/Users/tim/.theano/compiledir_Linux-4.8--ARCH-x86_64-with-arch--3.5.2-64/cuda_ndarray/cuda_ndarray.so(_ZNSt6locale5_Impl16_M_install_facetEPKNS_2idEPKNS_5facetE+0x142)[0x7f42dd296ff2]
[...]

Would it be possible to create a "virtual" package theano with a boolean property gpuSupport? Right now, Keras pulls in the Keras package without GPU support.

I couldn't check whether the changes from patchPhase are still needed to support Python 3.

Things done
  • Tested using sandboxing
    (nix.useSandbox on NixOS,
    or option build-use-sandbox in nix.conf
    on non-NixOS)
  • Built on platform(s)
    • NixOS
    • macOS
    • Linux
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Fits CONTRIBUTING.md.

Sorry, something went wrong.

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@tindzk, thanks for your PR! By analyzing the history of the files in this pull request, we identified @artuuge, @FRidh and @dezgeg to be potential reviewers.

@joachifm
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Would it be possible to create a "virtual" package theano with a boolean property gpuSupport? Right now, Keras pulls in the Keras package without GPU support.

The idiomatic solution is to simply pass the variant you want (it only "pulls in" the non-GPU variant because that's the one that happens to be bound to that name).

joachifm
joachifm requested changes Nov 29, 2016
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pkgs/development/python-modules/theano/cuda/default.nix
sed -i -re "s/(ctx.bin_id\[\-2:\])/int(\1)/g" dnn.py
popd
'';
# patchPhase = ''
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Please remove this if it is no longer used.

pkgs/top-level/python-packages.nix
@@ -23341,7 +23341,7 @@ in {
};
};

Theano = buildPythonPackage rec {
theano = buildPythonPackage rec {
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Changing bound names like this can be annoying, consider either not doing it or adding an alias.

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@FRidh FRidh Nov 30, 2016 •
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Within python-packages.nix we also aim to stick to the exact name upstream uses - which is Theano with a capital T.

pkgs/top-level/python-packages.nix
];

meta = {
description = "Deep Learning library for Theano and TensorFlow";
description = "Keras is a high-level neural networks library for Theano and TensorFlow";
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Please remove the package name from the description, per the guidelines.

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mentionbot failed to mention keras maintainer @NikolaMandic, they might be able to provide some more substantive comments on this.

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well it seems @tindzk version bumped keras and it floats his boat
I would not remove theano seds before figuring out what writer had in mind as a side note

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FRidh commented Nov 30, 2016

Note 07dcc4f

@pSub pSub added the 8.has: package (update) This PR updates a package to a newer version label Nov 30, 2016
@tindzk
Keras: 1.0.3 -> 1.1.1

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@tindzk
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tindzk commented Nov 30, 2016

Thanks for the review! I have rebased the commit and implemented your suggestions.

@artuuge: Is it safe to remove the sed calls?

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FRidh commented Jan 2, 2017

This has been open for too long. What is the status of this? Some of this has been merged already if I am correct. At least, we have a

  TheanoWithCuda = callPackage ../development/python-modules/Theano/theano-with-cuda

@tindzk
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tindzk commented Jan 3, 2017 •
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The only remaining issue is to clarify the sed calls and to get the Theano backend to work.

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tindzk commented Feb 14, 2017

Is anyone interested in taking over the maintenance of this package?

@FRidh FRidh self-assigned this Feb 15, 2017
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FRidh commented Feb 15, 2017

I've upgraded Keras in master but I don't know whether it works. There are some other changes in this commit here as well, but they should have been split into separate commits and so for now I've ignored them.

@FRidh FRidh closed this Feb 15, 2017
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tindzk commented Feb 15, 2017

Thanks a lot!

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