Thanks a lot. I did restart again and still cannot access GPU. Do you know how I can fix it?
(fall) mona@goku:~$ python
Python 3.8.5 (default, Jan 27 2021, 15:41:15)
[GCC 9.3.0] on linux
Type “help”, “copyright”, “credits” or “license” for more information.



import torch
torch.cuda.is_available()
False




torch.version
‘1.8.0+cu111’



By the way, it’s weird after I did the restart, now the NVIDIA driver is not recognized

$ nvidia-smi
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.