在我使用线性回归做例子的时候GPU能正常运行，但在使用CNN时，神奇的事情发生了：
Loaded runtime CuDNN library: 5005 (compatibility version 5000) but source was compiled with 5105 (compatibility version 5100). If using a binary install, upgrade your CuDNN library to match. If building from sources, make sure the library loaded at runtime matches a compatible version specified during compile configuration.Loa
