Summary: Adding an experimental API to FX graph module to place "hooks" every time when we are changing or replacing nodes in a graph, so that we can properly update the new name in graph signature and potentially other places.
Test Plan:
buck test mode/opt -c fbcode.enable_gpu_sections=true caffe2/test/distributed/_tensor/experimental:tp_transform
buck test mode/opt caffe2/test:test_export -- -r test_replace_hook
Differential Revision: D52896531
Pull Request resolved: https://github.com/pytorch/pytorch/pull/117825
Approved by: https://github.com/avikchaudhuri
This PR adds the bare minimum functionality to get torchbind working in an e2e testable way on PT2.
It implements:
* ProxyTensor support
* Simple torch.export support (proxytensor-only path, e.g. non-strict).
* add some tests exercising the path.
Because all this is not fully baked, I hide the functionality behind a feature flag (`enable_torchbind_tracing()`) so it does not affect regular users for now.
Still on the agenda:
* Dynamo support
* Actual FakeMode support
* Mutability support
Hoping to get this first bit in as a standalone, as it will unblock some more extensive experimentation/testing going on internally.
Differential Revision: [D51825372](https://our.internmc.facebook.com/intern/diff/D51825372/)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/117697
Approved by: https://github.com/SherlockNoMad
