Hey 
So I saw this post: Rtx 3070 slower with mixed precision autocast in pytorch 1.7 11, where @ptrblck said:



Rtx 3070 slower with mixed precision autocast in pytorch 1.7


cudnn8.0.5 ships with the updated heuristics for the 3090 and cudnn8.1.x will cover the complete 30xx series. You could try out the nightly PyTorch build, which already uses cudnn8.0.5 and check, if the performance is improved.


So I have some questions about nightly build:

Which version of pytorch is the nightly? (If stable is 1.7.0, what is the version number of nightly)
How stable is nightly? I guess its less stable than the stable version, but should I expect problems working with it? (I work with CNNs and GANS, nothing speical)
When I install the nightly build with pip/conda, all the cuda and cudnn stuff are inside the binaries? And if so, the only thing I need is nvidia drivers?
Are there any specifications on the nightly build, like which cuda and cudnn it uses, when was the latest version released etc?

Thank you!