cuda安装和cudnn安装

cuda下载安装

https://developer.nvidia.com/cuda-downloads

cudnn下载安装

https://developer.nvidia.com/cuda-downloads

1. 下载lib-runteim、lib-dev、lib-doc
2. 以此安装以上三个
   update-alternatives: using /usr/include/x86_64-linux-gnu/cudnn_v7.h to provide /usr/include/cudnn.h (libcudnn) in auto mode
   
3. 如上最后一条复制测试文件
4. 进入sample/mnistcudnn，进行make，然后执行./mnistcudnn