Make CUDA OOM error a type (#33056)
Summary:
There are cases when we want to recover from CUDA OOM, for example, some cuDNN algorithms use huge workspace and we want to recover from OOM to pick a different algorithm, in such cases, there is no reason to catch all errors.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/33056
Differential Revision: D19795359
Pulled By: ezyang
fbshipit-source-id: a34e23bf6d172dc0257389251dafef5b38d27d2b
