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RuntimeError: CUDA environment is not correctly set up

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Chainer+GPUはMacで動くのだろうか

El CapitanでChainer+GPUを動かそうとしたらRuntimeError: CUDA environment is not correctly set upと出た。

$ python MLP.py --gpu 0

Traceback (most recent call last):
File "MLP.py", line 126, in <module>
x_batch = cuda.to_gpu(x_batch)
File "/usr/local/var/pyenv/versions/2.7.11/lib/python2.7/site-packages/chainer/cuda.py", line 192, in to_gpu
check_cuda_available()
File "/usr/local/var/pyenv/versions/2.7.11/lib/python2.7/site-packages/chainer/cuda.py", line 82, in check_cuda_available
raise RuntimeError(msg)
RuntimeError: CUDA environment is not correctly set up
(see https://github.com/pfnet/chainer#installation).dlopen(/usr/local/var/pyenv/versions/2.7.11/lib/python2.7/site-packages/cupy/core/core.so, 2): Library not loaded: @rpath/libcublas.7.5.dylib
Referenced from: /usr/local/var/pyenv/versions/2.7.11/lib/python2.7/site-packages/cupy/core/core.so
Reason: image not found


環境


  • OS X 10.11.4 (El Capitan)

  • NVIDIA GeForce GT 750M

  • python 2.7.11

  • Chainer 1.8.0

  • CUDA 7.5


解決。動いた。


  • パスを通してターミナル再起動


~/.bashrc

export PATH=/usr/local/cuda/bin:$PATH

export LD_LIBRARY_PATH=/usr/local/cuda/lib:$LD_LIBRARY_PATH
export DYLD_LIBRARY_PATH=/usr/local/cuda/lib:$DYLD_LIBRARY_PATH


  • SIP(Macのシステム保護機能)を無効化

一旦システムを終了させ、Command + R + 電源ボタンで起動後、ターミナルで

$ csrutil disable

を実行


  • Chainerをインストールしなおす

$ pip uninstall chainer

$ CUDA_PATH=/usr/local/cuda pip install chainer --no-cache-dir


参考