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Allow RNN hidden_size to be 0 #70556

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jaketae
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@jaketae jaketae commented Jan 2, 2022

Fixes #56767.

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@albanD albanD removed their request for review January 4, 2022 14:43
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Thanks for the update! Could you please also add a test for this case in test/test_nn.py?

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jaketae commented Jan 5, 2022

Hello @jbschlosser, thank you for the review, and apologies for the incomplete PR. I've added a shape sanity check to ensure that the output of a 0 hidden size cell is also a 0 size tensor, but I'm not too sure if this suffices. Please let me know if there's more you think we should check. Thanks!

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LGTM!

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@jbschlosser has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

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Let RNN modules handle hidden_size = 0
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