I see your reply and be surprise about that.

PyTorch will come with it’s own separate cuda and cudnn bundle. This will be kept entirely separate and only used for PyTorch.

I hava a new PC, and I don’t install the cuda but when I install the pytorch with pip command , the “cuda_isavailable()” returns “Ture”,So I  was thought the  pip will install the  cuda and cudnn automaticly.
But when I input “nvcc -V”  in CMD to inspect the cuda,the  does’t work!   I am confused!
But someone syas that  pytorch does’t contain the cuda and cudnn ,I don’t know  who is right!
Are you  sure about that ?
Thanks !