add a unit test for large node error (#48938)
Summary:
add a unit test to test the situation where a node is too large to fit into any device
Pull Request resolved: https://github.com/pytorch/pytorch/pull/48938
Reviewed By: zhangguanheng66
Differential Revision: D25402967
Pulled By: scottxu0730
fbshipit-source-id: a2e2a3dc70d139fa678865ef03e67fa57eff4a1d
