simple functorch with modes #40
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samdow
commented
Jun 14, 2022
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| from torch.utils._mode_utils import no_dispatch | ||
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| class Autograd(Dispatcher): |
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Note that because we're sitting at the torch dispatch level, autograd has already happened so we still have to rewrite autograd here and can't reuse PyTorch's autograd. This would be a no-go in actual functorch so we'll need to figure out a solution here
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This adds a rewrite of the simple functorch notebook to use torch dispatch modes. In doing this, we needed to add padding to vmap (i.e. we need to make
vmap(f)(torch.randn(2), torch.randn(2, 4))work)Still TODO:
It raised a couple bugs in torch dispatch modes
enable_torch_dispatch_mode(None, replace=True)work