驱动：

cuda11.6.2
cudnn8.5.0

sudo gedit  ~/.bashrc

在最下面添加：

export PATH=/usr/local/cuda-11.6/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda-11.6/lib64:$LD_LIBRARY_PATH

使配置文件生效：

source ~/.bashrc

进入解压后的界面，然后

sudo cp cudnn-*-archive/include/cudnn*.h /usr/local/cuda-11.6/include 
sudo cp -P cudnn-*-archive/lib/libcudnn* /usr/local/cuda-11.6/lib64 
sudo chmod a+r /usr/local/cuda-11.6/include/cudnn*.h /usr/local/cuda-11.6/lib64/libcudnn*

#下面这个是方便后面opencv配置cuda
sudo cp cudnn-*-archive/include/cudnn*.h /usr/local/cuda/include 
sudo cp -P cudnn-*-archive/lib/libcudnn* /usr/local/cuda/lib64 
sudo chmod a+r /usr/local/cuda-11.6/include/cudnn*.h /usr/local/cuda/lib64/libcudnn*