[FSDP2] Fix CUDA sync for bf16 HSDP AR, fp32 params #140044
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[ghstack-poisoned]
🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/140044
Note: Links to docs will display an error until the docs builds have been completed. ✅ No FailuresAs of commit 8787a75 with merge base 81ecf98 ( This comment was automatically generated by Dr. CI and updates every 15 minutes. |
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release notes: distributed (fsdp2)
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@awgu has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator. |
weifengpy
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Nov 12, 2024
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Since writing a stream unit test for this is not easy, I am going to land this first. |
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@pytorchbot merge |
Merge startedYour change will be merged once all checks pass (ETA 0-4 Hours). Learn more about merging in the wiki. Questions? Feedback? Please reach out to the PyTorch DevX Team |
zero000064
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Nov 14, 2024
Differential Revision: [D65621037](https://our.internmc.facebook.com/intern/diff/D65621037) Pull Request resolved: pytorch#140044 Approved by: https://github.com/weifengpy
Ryo-not-rio
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Dec 2, 2024
Differential Revision: [D65621037](https://our.internmc.facebook.com/intern/diff/D65621037) Pull Request resolved: pytorch#140044 Approved by: https://github.com/weifengpy
pobin6
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Dec 5, 2024
Differential Revision: [D65621037](https://our.internmc.facebook.com/intern/diff/D65621037) Pull Request resolved: pytorch#140044 Approved by: https://github.com/weifengpy
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Dec 11, 2024
Differential Revision: [D65621037](https://our.internmc.facebook.com/intern/diff/D65621037) Pull Request resolved: pytorch#140044 Approved by: https://github.com/weifengpy
Esquains
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Dec 15, 2024
ghstack-source-id: d58eab6 Pull Request resolved: pytorch/pytorch#140044
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Stack from ghstack (oldest at bottom):
all_reduce_dtype#140039cc @H-Huang @kwen2501 @wanchaol @fegin @fduwjj @wz337 @wconstab @d4l3k @c-p-i-o
Differential Revision: D65621037