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[simplefsdp] fix & enable DSV3 manual bucketing #2080

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[simplefsdp] fix & enable DSV3 manual bucketing #2080

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@ruisizhang123 ruisizhang123 commented Nov 24, 2025 •
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Validate DSV3 manual bucketing when EP/TP are enable. (DSV3-16B)

(Single Node: BS = 1)

Node Method Parallelism Memory TPS Trace
1-Node (8H100) SimpleFSDP (aot_eager) FSDP=4 EP=2 Link
1-Node (8H100) FSDP2-eager FSDP=4 EP=2 55.19GiB(58.10%) 8,003 Link
1-Node (8H100) SimpleFSDP (aot_eager) FSDP=2 TP=2 EP=2 Link
1-Node (8H100) FSDP2-eager FSDP=2 TP=2 EP=2 Link
8-Node (64H100) SimpleFSDP (aot_eager) FSDP=4 EP=2 Link
8-Node (64H100) FSDP2-eager FSDP=4 EP=2 Link
8-Node (64H100) SimpleFSDP (aot_eager) FSDP=2 TP=2 EP=2 Link
9-Node (64H100) FSDP2-eager FSDP=2 TP=2 EP=2 Link
  1. Loss Equivalence

@meta-cla meta-cla bot added the CLA Signed This label is managed by the Meta Open Source bot. label Nov 24, 2025
@ruisizhang123 ruisizhang123 marked this pull request as draft November 24, 2025 17:19
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