albanD 45c5bac870 [WIP] Fix cpp grad accessor API (#40887) ... Summary: Update the API to access grad in cpp to avoid unexpected thread safety issues. In particular, with the current API, a check like `t.grad().defined()` is not thread safe. - This introduces `t.mutable_grad()` that should be used when getting a mutable version of the saved gradient. This function is **not** thread safe. - The `Tensor& grad()` API is now removed. We could not do a deprecation cycle as most of our call side use non-const Tensors that use the non-const overload. This would lead to most calls hitting the warning. This would be too verbose for all the users. Pull Request resolved: https://github.com/pytorch/pytorch/pull/40887 Reviewed By: ezyang Differential Revision: D22343932 Pulled By: albanD fbshipit-source-id: d5eb909bb743bc20caaf2098196e18ca4110c5d2		2020-07-16 09:11:12 -07:00
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CMakeLists.txt
model.py
op.cpp
op.h
test_custom_classes.py
test_custom_ops.cpp	[WIP] Fix cpp grad accessor API (#40887)	2020-07-16 09:11:12 -07:00
test_custom_ops.py