pytorch

67941c8a - Document `torch.cuda.ExternalStream`, `torch.cuda.caching_allocator_alloc` and `torch.cuda.caching_allocator_delete` (#70126)

Document `torch.cuda.ExternalStream`, `torch.cuda.caching_allocator_alloc` and `torch.cuda.caching_allocator_delete` (#70126) Summary: Fixes https://github.com/pytorch/pytorch/issues/67414. Fixes https://github.com/pytorch/pytorch/issues/70117. cc brianjo mruberry ngimel Pull Request resolved: https://github.com/pytorch/pytorch/pull/70126 Reviewed By: mruberry Differential Revision: D33542910 Pulled By: ngimel fbshipit-source-id: 4b870f4dceca6ee4cc8fba58819f1cb18ac9f857