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Make unbind() overrideable for NT subclass by jbschlosser · Pull Request #110646 · pytorch/pytorch · GitHub
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@jbschlosser jbschlosser commented Oct 5, 2023

Stack from ghstack (oldest at bottom):

Reland of #109122. Fixed the memory leak by not saving the outputs of unbind() for backward. Rather, the NT sizes are saved so undefined grads can replaced with zeros of the correct size.

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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/110646

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✅ You can merge normally! (1 Unrelated Failure)

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@jbschlosser jbschlosser requested a review from cpuhrsch October 5, 2023 21:02
@jbschlosser jbschlosser added topic: not user facing topic category release notes: nested tensor Changes that have a direct impact on nested tensors labels Oct 5, 2023
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LGTM

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@pytorchbot merge

@pytorch-bot pytorch-bot bot added the ciflow/trunk Trigger trunk jobs on your pull request label Oct 5, 2023
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@albanD albanD removed their request for review October 5, 2023 21:58
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The merge job was canceled. If you believe this is a mistake, then you can re trigger it through pytorch-bot.

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kit1980 commented Oct 5, 2023

I've cancelled the merge as #110404 is likely to be reverted.

Reland of #109122. Fixed the memory leak by not saving the outputs of `unbind()` for backward. Rather, the NT sizes are saved so undefined grads can replaced with zeros of the correct size.

[ghstack-poisoned]
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@pytorchbot merge

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pytorchmergebot pushed a commit that referenced this pull request Oct 6, 2023
Needed internally. Note that `split_with_sizes()` for NT is currently supported only on `dim=-1`.
Pull Request resolved: #110647
Approved by: https://github.com/cpuhrsch, https://github.com/soulitzer
ghstack dependencies: #110646
@facebook-github-bot facebook-github-bot deleted the gh/jbschlosser/93/head branch October 10, 2023 14:25
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