pytorch

e65e4ac1 - 1.12.1/bt fix (#81952)

1.12.1/bt fix (#81952) * Add test for torchscripting nn.TransformerEncoder, including fast path (#79796) (#79796) Summary: Add test just to check if TransformerEncoder will crash when enumerating over params [with_no_grad, use_torchscript, training]. Motivation for this was that TransformerEncoder fast path (so with_no_grad=True) and use_torchscript=True would crash with the issue that NestedTensor doesn't have size. This was caused because the TransformerEncoder fast path generates a NestedTensor automatically as a perf optimization and torchscript attempts to find intermediate tensor sizes while it optimizes. But NestedTensor has not implemented a size method, so things fail. This test goes together with this fix https://github.com/pytorch/pytorch/pull/79480 Pull Request resolved: https://github.com/pytorch/pytorch/pull/79796 Approved by: https://github.com/zrphercule Test Plan: contbuild & OSS CI, see https://hud.pytorch.org/commit/pytorch/pytorch/06274d7a487bf7995da77b9df9b5c1f7dc13f35b Test plan from GitHub: ``` buck build --show-output mode/opt -c fbcode.enable_gpu_sections=true -c fbcode.nvcc_arch=a100 mode/inplace //caffe2/test:transformers ./fbcode/buck-out/gen/caffe2/test/transformers#binary.par ``` Test runs and passes together with the changes from the PR above (I made another diff on top of this with those changes). Does not pass without the fix. Reviewed By: mikekgfb Differential Revision: D37222923 Pulled By: erichan1 fbshipit-source-id: 5a16e7d240cb51c0a613d16a79931d41122aba8b * disable src mask for transformer and multiheadattention fastpath (#81277) (#81277) Summary: Disable fastpath if src_mask passed to TransformerEncoderLayer and MultiheadAttention. - Refactored test_transformerencoder from test_nn.py to test_transformers.py. Added a src_mask test there. - Added a specific src_mask test in test_transformers.py Fixes https://github.com/pytorch/pytorch/issues/81129 Pull Request resolved: https://github.com/pytorch/pytorch/pull/81277 Approved by: https://github.com/zrphercule Test Plan: contbuild & OSS CI, see https://hud.pytorch.org/commit/pytorch/pytorch/23088fcfdf77632d4e6db4d35ce62735ca6622d2 Reviewed By: DanilBaibak Differential Revision: D37919513 Pulled By: erichan1 fbshipit-source-id: 0697d789634775136897fdb6a310356a6a45030d * remove decoder tests for feature not in 1.12 * remove unnecessary changes from #77903 to make changes more minimal