Ubuntu下安装CUDA

• cuda
  • check:
• cuDNN
  • 下载cuDNN后解压
  • 更新软链接
  • 更新链接库
• symbol link

参考链接：
http://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html
http://blog.csdn.net/jhszh418762259/article/details/52958287?locationNum=8&fps=1
http://www.cnblogs.com/wangduo/p/7383989.html

cuda

1. Perform the pre-installation actions.
   sudo apt-get install linux-headers-$(uname -r)
2. Install repository meta-data
   sudo dpkg -i cuda-repo-<distro>_<version>_<architecture>.deb
3. Update the Apt repository cache
   sudo apt-get update
4. Install CUDA
   sudo apt-get install cuda
5. Perform the post-installation actions

   export CUDA_HOME=/usr/local/cuda-8.0
   export PATH=$CUDA_HOME/bin:$PATH
   # export LD_LIBRARY_PATH=$CUDA_HOME/lib64:${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
   source ~/.bashrc
   

check:

nvcc --version
nvidia-smi

cuDNN

下载cuDNN后解压

tar -xzvf cudnn-9.0-linux-x64-v7.tgz
sudo cp lib* /usr/local/cuda/lib64/
sudo cp cudnn.h /usr/local/cuda/include/
sudo chmod a+r /usr/local/cuda/include/cudnn.h /usr/local/cuda/lib64/libcudnn*

更新软链接

cd /usr/local/cuda/lib64/
sudo rm -rf libcudnn.so libcudnn.so.5
sudo ln -s libcudnn.so.5.1.5 libcudnn.so.5
sudo ln -s libcudnn.so.5 libcudnn.so

若需要更换cudnn版本，则替换原来的libcudnn*，并重新软链接。

更新链接库

sudo ldconfig

symbol link

/sbin/ldconfig.real: /usr/lib/nvidia-375/libEGL.so.1 is not a symbol link
/sbin/ldconfig.real: /usr/lib32/nvidia-375/libEGL.so.1 is not a symbol link

sudo mv /usr/lib/nvidia-375/libEGL.so.1 /usr/lib/nvidia-375/libEGL.so.1.org
sudo mv /usr/lib32/nvidia-375/libEGL.so.1 /usr/lib32/nvidia-375/libEGL.so.1.org
sudo ln -s /usr/lib/nvidia-375/libEGL.so.375.39 /usr/lib/nvidia-375/libEGL.so.1
sudo ln -s /usr/lib32/nvidia-375/libEGL.so.375.39 /usr/lib32/nvidia-375/libEGL.so.1