[Python] [Chainer] [Windows] Install Chainer on Windows

Chainer environment creation procedure memo on Windows (mainly a memorandum on handling errors)

Chainer: A flexible framework for neural networks

※Caution! In my environment, I could not create an execution environment for the GPU version (CUDA version), so please refer to it for the CPU version.

Verification environment

• Windows 10
• Python 3.6.0
• Chainer 1.21.0
• CUDA 8
• GeForce GTX 760

Installation procedure

(Option) Install CUDA Toolkit

If you want to use CUDA with Chainer, be sure to install CUDA Toolkit first.

CUDA Toolkit | NVIDIA Developer

Example: Select [Download] => [Windows] => [x86_64] => [10] => [exe (network)].

Install Chainer

Install Chainer.

$ pip install chainer

Sample operation check

• When dropping the sample to be executed, be sure to use the sample of the tag of the same version as Chainer that was dropped, not master. (If the version does not match, an error may occur)

pfnet/chainer: A flexible framework of neural networks for deep learning

Normal execution

Normal execution

$ python examples/mnist/train_mnist.py

Execution using GPU

TODO: In my environment, I get an error at runtime, so I'm verifying => Even if I imitate another person's article and make trial and error, I am giving up because I can not detect the headers of CUDA by any means ... (v1.21.0).

If the installation is successful, you should be able to do the following:

Execution using gpu

$ python train_mnist.py -g 0

trouble shooting

If Microsoft Visual C ++ 14.0 does not exist

NOTE: This error did not occur in an environment where Visual Studio 2015 was already installed.

When I tried to install with pip, I got the following error.

Running chainer installation with pip failed

$ pip install chainer
  Using cached chainer-1.10.0.tar.gz
    Complete output from command python setup.py egg_info:
    running egg_info
    creating pip-egg-info\chainer.egg-info
    writing top-level names to pip-egg-info\chainer.egg-info\top_level.txt
    writing dependency_links to pip-egg-info\chainer.egg-info\dependency_links.txt
    writing pip-egg-info\chainer.egg-info\PKG-INFO
    writing requirements to pip-egg-info\chainer.egg-info\requires.txt
    writing manifest file 'pip-egg-info\chainer.egg-info\SOURCES.txt'
    warning: manifest_maker: standard file '-c' not found

    error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools
    Executing cythonize
    Options: {'annotate': False, 'no_cuda': False, 'profile': False, 'linetrace': False}
    **************************************************
    *** WARNING: nvcc not in path.
    *** WARNING: Please set path to nvcc.
    **************************************************
    Include directories: []
    Library directories: []

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in C:\Users\<username>\AppData\Local\Temp\pip-build-7ak65o9t\chainer\

Apparently there is no compiler for Cython, so it seems to be useless, so install Microsoft Visual C ++ Build Tools, which is also specified in the error log, first. (I think it depends on the environment, but it took a long time to install. About 30 minutes?)

Download the Visual C++ Build Tools (standalone C++ compiler, libraries and tools)

You should now be able to install it by running it again.

AttributeError:'module' object has no attribute'PlotReport' when running sample

As I wrote above, I got this error when the installed Chainer version and the sample version do not match. In my case I used master when using chainer 1.21.0 and got this error. As a workaround, I checked out the 1.21.0 tag and used the sample for that version and it worked fine.

cuda.h etc. not found (unsolved)

The following error may occur when installing chainer.

**************************************************
*** WARNING: Include files not found: ['cublas_v2.h', 'cuda.h', 'cuda_profiler_api.h', 'cuda_runtime.h', 'curand.h']
*** WARNING: Skip installing cuda support
*** WARNING: Check your CFLAGS environment variable
**************************************************

TODO: Currently unsolved in my environment ... In other people's articles, there was a description such as adding a path to INCLUDE, so I tried adding it, but it did not solve.

cudnn.h not found (unverified)

**************************************************
*** WARNING: Include files not found: ['cudnn.h']
*** WARNING: Skip installing cudnn support
*** WARNING: Check your CFLAGS environment variable
**************************************************

reference

Chainer MNIST Error　AttributeError: 'module' object has no attribute 'PlotReport' Install Chainer + CUDA 8.0 on Windows 10-Qiita