Make pipeWrite and pipeRead noexcept (#45783)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/45783
After the previous device maps commits, `pipeWrite` might throw. In
this case, if we increment active calls before `pipeWrite` on the
caller, that active call won't be decremented properly when `pipeWrite`
throws. As a result, `shutdown` can silently timeout. I noticed this
as some tests take more than 60s to finish.
This commit extract the tensor device checking logic out of pipeWrite,
and make sure the error is thrown before the active call count is
incremented.
Differential Revision: D24094803
Test Plan: Imported from OSS
Reviewed By: mruberry
Pulled By: mrshenli
fbshipit-source-id: d30316bb23d2afd3ba4f5540c3bd94a2ac10969b
