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一 官方安装文档
PREREQUISITES
CUDA 7.0 and a GPU of compute capability 3.0 or higher are required.
ALL PLATFORMS
Extract the cuDNN archive to a directory of your choice, referred tobelow as <installpath>.
Then follow the platform-specific instructions as follows.
LINUX
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cd <installpath>
export LD_LIBRARY_PATH=`pwd`:$LD_LIBRARY_PATH
Add <installpath> to your build and link process by adding-I<installpath> to your compile
line and-L<installpath> -lcudnn to your link line.
二 安装方法：
直接解压拷贝就可以了：
tar xvzf cudnn-8.0-linux-x64-v5.0-ga.tgz
sudo cp cuda/include/cudnn.h/usr/local/cuda/include
sudo cp cuda/lib64/*.*/usr/local/cuda/lib64
sudo chmod a+r/usr/local/cuda/include/cudnn.h /usr/local/cuda/lib64/libcudnn*