我在python2.7.11中有一个使用chainer和cupy的项目。将Chainer的版本从1.22更新到4.1.0后,我不能使用cupy
>>> import cupy
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named cupy
这就是我安装chainer1.22 1.22的方式。它能够成功地导入cupy而不需要安装cupy。
pip install chainer==1.22,
检查
>>> import chainer
>>> import cupy
>>> chainer.cuda.available
True
我可以看到数据自动化系统有链子1.22。
所以我卸载链子1.22
pip uninstall chainer
安装链轮4.1.0
pip install chainer==4.1.0
结果是
>>> import chainer
>>> import cupy
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named cupy
>>> chainer.cuda.available
False
可以看到,chainer版本4.1.0中没有cuda。所以我试着用pip安装cupy
pip install cupy
安装时记录
Requirement already satisfied: numpy>=1.9.0 in c:\users\UserName\appdata\local\continuum\anaconda2\lib\site-packages (from cupy)
Requirement already satisfied: six>=1.9.0 in c:\users\UserName\appdata\local\continuum\anaconda2\lib\site-packages (from cupy)
Requirement already satisfied: fastrlock>=0.3 in c:\users\UserName\appdata\local\continuum\anaconda2\lib\site-packages (from cupy)
Building wheels for collected packages: cupy
Running setup.py bdist_wheel for cupy ... /
.
.
.
Microsoft (R) C/C++ Optimizing Compiler Version 15.00.30729.01 for x64
Copyright (C) Microsoft Corporation. All rights reserved.
tmpxft_000027f8_00000000-1.cpp
nvcc fatal : Host compiler targets unsupported OS.
error: command 'C:\\Program Files\\NVIDIA GPU Computing Toolkit\\CUDA\\v8.0\\bin/nvcc.exe' failed with exit status 1
----------------------------------------
Failed building wheel for cupy
Running setup.py clean for cupy
Failed to build cupy
Installing collected packages: cupy
.
.
.
Microsoft (R) C/C++ Optimizing Compiler Version 15.00.30729.01 for x64
Copyright (C) Microsoft Corporation. All rights reserved.
tmpxft_0000456c_00000000-1.cpp
nvcc fatal : Host compiler targets unsupported OS.
error: command 'C:\\Program Files\\NVIDIA GPU Computing Toolkit\\CUDA\\v8.0\\bin/nvcc.exe' failed with exit status 1
----------------------------------------
Command "C:\Users\UserName\AppData\Local\Continuum\Anaconda2\python.exe -u -c "import setuptools, tokenize;__file__='c:\\users\\UserName\\appdata\\local\\temp\\pip-build-gwroh2\\cupy\\setup.py';
f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();
exec(compile(code, __file__, 'exec'))" install --record c:\users\UserName\appdata\local\temp\pip-tbtixt-record\install-record.txt --single-version-externally-managed --compile" failed with error code 1 in c:\users\UserName\appdata\local\temp\pip-build-gwroh2\cupy\
未能购买cupy我检查了nvcc版本
nvcc -V
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2016 NVIDIA Corporation
Built on Mon_Jan__9_17:32:33_CST_2017
Cuda compilation tools, release 8.0, V8.0.60
当我尝试使用chainer1.22 1.22环境安装cupy by pip时,也会出现同样的问题。
这是我的环境
Windows 10 pro 64bit
Anaconda 2.4.11
NVDIA GTX 1060 6GB, Driver Version: 398.11
CUDA 8.0
Visual studio 2015
我引用了这个post,但它对我不起作用。
如何使用CHAINER4.1.0导入CUPY?
谢谢你阅读我的问题!
发布于 2018-06-22 09:11:23
据我所知,chainer和cupy在chainer版本2之后就分开了。所以cupy是用chainer版本1自动安装的,但是你需要在chainer版本2之后单独安装cupy。所以您需要安装cupy,但是我不知道构建失败的原因。
如果您能够理解您正在使用的CUDA版本,您可以从构建的软件包cupy-cudaXX
安装XX表示您的CUDA版本。试着在下面:
# make sure cupy is uninstalled
pip uninstall cupy
pip uninstall cupy
# based on the cuda version, install command changes.
# Ex. CUDA version is 8.0
pip install cupy-cuda80
# Ex2. CUDA version is 9.0
# pip install cupy-cuda90
发布于 2018-07-09 01:57:46
试一试
pip install -U pip setuptools
pip freeze
pip uninstall chainer cupy cupy-cuda80 cupy-cuda90 cupy-cuda91 cupy-cuda92
pip install --no-cache-dir cupy-cuda80
发布于 2018-10-02 12:13:20
我最近在windows环境python3.6vs2015Cuda8.0上遇到了这个错误。我试过了
pip安装cupy
但是它没有安装这个软件包。我想是因为cupy,因为兼容性问题,我们不得不提到cuda版本。然而,进入
pip安装cupy-cuda80 80
正确安装软件包。
https://stackoverflow.com/questions/50984327
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