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Replace module backward hook with tensor hook #1

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yaroslavvb opened this issue Sep 13, 2019 · 0 comments

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yaroslavvb commented Sep 13, 2019 •

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Module backward hooks may get deprecated eventually, can replace them with tensor hook as follows.

def tensor_hook_adder(module, input, output):
    def tensor_backwards(grad):
        setattr(module, 'backprops', grad)
    output.register_hook(tensor_backwards)

layer.register_forward_hook(tensor_hook_adder)

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