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[lazyinit] combine lazy tensor with dtensor #3204
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YuliangLiu0306
approved these changes
Mar 22, 2023
FrankLeeeee
reviewed
Mar 22, 2023
FrankLeeeee
approved these changes
Mar 23, 2023
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📌 Checklist before creating the PR
[doc/gemini/tensor/...]: A concise description
🚨 Issue number
Closes #3148 , closes #3149
📝 What does this PR do?
Combine lazy tensor with dtensor. Now it provide
distribute()
method, which will shard the tensor using target layout.Usage:
Other important changes:
LazyTensor.materialize()
in-place.x.data = torch.empty(10)
Known issues: Many hf models' embedding cannot be lazy initialized.
Besides, we test it on our model zoo. Here is a report:
Unit tests are skipped until we upgrade torch to 1.12. We run the tests on local:
💥 Checklist before requesting a review
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