Additional error checking for `torch.cuda.nccl` APIs. (#43247)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/43247
`torch.cuda.nccl` APIs didn't throw appropriate errors when called
with inputs/outputs that were of the wrong type and it resulted in some cryptic
errors instead.
Adding some error checks with explicit error messages for these APIs.
ghstack-source-id: 110683546
Test Plan: waitforbuildbot
Reviewed By: rohan-varma
Differential Revision: D23206069
fbshipit-source-id: 8107b39d27f4b7c921aa238ef37c051a9ef4d65b
