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bring back torch.autograd.Function for float8 matmul #341
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Summary: This is a redo of #316 With upcoming support of scaling granularities other than tensorwise, we need a good way to control which gemm kernel to call and how to scale the input tensors in fwd and bwd. A `torch.autograd.Function` override is the cleanest way to do that, and in 2024 this now works with `torch.compile`. Test Plan: ``` ./test/test_everything.sh ``` Reviewers: Subscribers: Tasks: Tags: [ghstack-poisoned]
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@vkuzo has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator. |
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started a new PR due to ghstack error |
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Stack from ghstack (oldest at bottom):
Summary:
This is a redo of
#316
With upcoming support of scaling granularities other than tensorwise,
we need a good way to control which gemm kernel to call and how to scale
the input tensors in fwd and bwd. A
torch.autograd.Functionoverrideis the cleanest way to do that, and in 2024 this now works with
torch.compile.Test Plan:
Reviewers:
Subscribers:
Tasks:
Tags:
Differential Revision: D60291396