pytorch version, cuda version, the system queries and correspondence between cuda version

Versions Query:

python version: directly into the interface which python or python view;

pytorch version: Go python, import torch, torch .__ version__

cudatoolkit version: Go python, import torch, torch.version.cuda

System cuda: general / user / local / cuda

There is also a cudnn?

 

Map:

Here pytorch and cudatoolkit correspondence between the versions:

https://pytorch.org/get-started/previous-versions/

 

cudatoolkit version and system cuda correspondence between:

xxx