libcudart.so.9.2: cannot open shared object file: No such file or directory

解决办法：
配置环境变量：

export LD_LIBRARY_PATH=/usr/local/cuda-9.2/lib64:$LD_LIBRARY_PATH
export PATH=/usr/local/cuda-9.2/bin:$PATH

加入到 ~/.bashrc
执行source ~/.bashrc

执行：
sudo ldconfig /usr/local/cuda/lib64