[Query] What is the use of different installation packages?

Hello All, I want to know the use of different packages that are installed for pytorch?

conda install pytorch torchvision torchaudio pytorch-cuda=11.8 -c pytorch -c nvidia

I am currently working on a project which has following installation command for pytorch.

conda install pytorch==1.6.0 torchvision==0.7.0 cudatoolkit=10.2

What is the use of :

  1. pytorch-cuda=11.8
  2. cudatoolkit=10.2

and what is the difference between them?

Thanks and Apologies if the questions are too trivial :slightly_frowning_face:

The main difference is the used CUDA version and the corresponding packaging.
In the past we relied on the cudatoolkit conda package and switched to pytorch-cuda metapackage defining all dependencies.

Thank you for the reply, @ptrblck