1.安装matconvnet
网上教程很多
2.编译
cd matconvnet/
addpath matlab/
vl_compilenn('enableGpu',true,'cudaRoot','/usr/local/cuda','cudaMethod','nvcc','enableCudnn',true,'cudnnRoot','local/cudnn5')
3.如果出现编译错误，找不到jpeglib.h，则查看这篇教程
http://blog.sina.com.cn/s/blog_7e3f6e8f0100veib.html