1、NVIDIA driver too old error
报错：The NVIDIA driver on your system is too old (found version 9000).
Please update your GPU driver by downloading and installing a new
version from the URL: http://www.nvidia.com/Download/index.aspx
Alternatively, go to: http://pytorch.org to install a PyTorch version
that has been compiled with your version of the CUDA driver.
解决：用nvcc --version 或nvidia-smi查看cuda版本
安装与cuda版本对应的pytorch和torchvision
如本文torch对应cuda版本10.1
pip install torch==1.5.1+cu101 torchvision==0.6.1+cu101 -f https://download.pytorch.org/whl/torch_stable.html
