ubuntu16.04 cudnn6.0 與cudnnv5.1安裝

1. download cudnn6.0 version (not latest 7.0)
   sudo rm -rf /usr/local/cuda/include/cudnn.h
   sudo rm -rf /usr/local/cuda/lib64/libcudnn*
2. to cudnn untar folders
   sudo cp include/cudnn.h /usr/local/cuda/include/
   sudo cp lib64/lib* /usr/local/cuda/lib64/
3. cd /usr/local/cuda/lib64/
   sudo chmod +r libcudnn.so.6.0.21
   sudo ln -sf libcudnn.so.6.0.21 libcudnn.so.6
   sudo ln -sf libcudnn.so.6 libcudnn.so
   sudo ldconfig

cudnn5.1

tar -xzvf cudnn-8.0-linux-x64-v5.1.tgz
sudo cp include/cudnn.h /usr/local/cuda-8.0/include
sudo cp lib64/libcudnn* /usr/local/cuda-8.0/lib64
sudo chmod a+r /usr/local/cuda/include/cudnn.h /usr/local/cuda-8.0/lib64/libcudnn*
sudo ln -sf libcudnn.so.5.1.10 libcudnn.so.5  
sudo ln -sf libcudnn.so.5 libcudnn.so  
sudo ldconfig