Summary:
Fixes https://github.com/pytorch/pytorch/issues/33182
This adds private API functions that developers of types that implement `__torch_function__` can use to ensure full coverage of the subset of the PyTorch API that can be overrided.
I've refactored some of the code in the tests into a new `torch._overrides.get_overridable_functions` function. I've also changed `TENSOR_LIKE_TORCH_OVERRIDES` into `torch._overrides.get_testing_overrides` and `IGNORED_TORCH_FUNCTIONS` into `torch._overrides.get_ignored_functions`. Making these two static global variables in the tests into functions should allow rewriting their implementation to construct their return values instead of just statically defining the return value as is done here. Currently that is blocked on not being able to inspect function signatures of compiled kernels in PyTorch (see https://github.com/pytorch/pytorch/issues/28233). See the docs I've added for usage examples of these new functions. I also refactored the existing override tests to make use of these new functions, which should be a good forcing function to make sure they're kept up-to-date.
Finally, while working on this I discovered that `TestTorchFunctionOverrides.test_mean` and `TestTorchFunctionOverrides.test_mm` weren't ever being run because they were getting clobbered by the other dynamically generated override tests. I fixed that by renaming the tests and then fixing the actual test code. I've verified that all the subclassing semantics is correct and that the updated test answers are correct. I'm happy to put the fixes to the existing tests in as a separate pull request if that would be easier to review.
ping cpuhrsch since the feature request originally came from them.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/33791
Differential Revision: D20195053
Pulled By: cpuhrsch
fbshipit-source-id: 1585f4e405f5223932b410eae03a288dc8eb627e
Summary:
This adds `__torch_function__` support for all functions in `torch.functional` and `torch.nn.functional`.
The changes to C++ code and codegen scripts are to facilitate adding `__torch_function__` support for the native functions in `torch._C._nn`. Note that I moved the `handle_torch_function` C++ function to a header that both `python_torch_functions.cpp` and `python_nn_functions.cpp` include. The changes to `python_nn_functions.cpp` mirror the changes I made to `python_torch_functions.cpp` when `__torch_function__` support was first added in https://github.com/pytorch/pytorch/issues/27064. Due to the somewhat different way the `torch._C` and `torch._C._nn` namespaces are initialized I needed to create a new static reference to the `torch._C._nn` namespace (`THPNNVariableFunctions`). I'm not sure if that is the best way to do this. In principle I could import these namespaces in each kernel and avoid the global variable but that would have a runtime cost.
I added `__torch_function__` support to the Python functions in `torch.nn.functional` following the approach in https://github.com/pytorch/pytorch/issues/32194.
I re-enabled the test that checks if all functions in the `torch` namespace are explicitly tested for `__torch_function__` support. I also generalized the check to work for `torch.functional` and `torch.nn.functional` as well. This test was explicitly disabled in https://github.com/pytorch/pytorch/issues/30730 and I'm happy to disable it again if you think that's appropriate. I figured now was as good a time as any to try to re-enable it.
Finally I adjusted the existing torch API tests to suppress deprecation warnings and add keyword arguments used by some of the code in `torch.nn.functional` that were missed when I originally added the tests in https://github.com/pytorch/pytorch/issues/27064.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/32799
Differential Revision: D19956809
Pulled By: ezyang
fbshipit-source-id: 40d34e0109cc4b9f3ef62f409d2d35a1d84e3d22
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/30445
Create distributed and rpc directories under caffe/test for better management
of unit tests.
Differential Revision: D18702786
fbshipit-source-id: e9daeed0cfb846ef68806f6decfcb57c0e0e3606
Summary:
For now I'm just removing the decorators from all of the currently overridable functions in `torch.functional`. This means they are no longer overridable, however this should fix the benchmark regressions reported in https://github.com/pytorch/pytorch/issues/30831. Moving forward we'll be looking at reducing the overhead of the python-level override mechanism and failing that, re-implementing all of these operators in C++.
cc hl475
Pull Request resolved: https://github.com/pytorch/pytorch/pull/30839
Differential Revision: D18838848
Pulled By: ezyang
fbshipit-source-id: 22b8015d7b2f7a947f1ebc9632c998e081b48ad8
Summary:
This is a re-do of https://github.com/pytorch/pytorch/issues/27064, which was reverted (b8792c0438). This was landed at the same time as other work that added new operators to the `torch` namespace so the check for whether the `torch` namespace is exhaustively checked for overridability was triggering test failures.
I've temporarily disabled that check and added an explanatory comment that the check will be re-enabled in a future PR that will be merged during a time when the commit velocity on PyTorch is lower.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/30730
Differential Revision: D18813270
Pulled By: ezyang
fbshipit-source-id: 70477c4656dca8fea6e7bc59259555041fcfbf68
