[RFC][FSDP2] Renamed FSDP to FSDPModule
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/124955
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cc mrshenli pritamdamania87 zhaojuanmao satgera rohan-varma gqchen aazzolini osalpekar jiayisuse H-Huang kwen2501 penguinwu fegin XilunWu wanchaol fduwjj wz337 tianyu-l wconstab yf225 chauhang d4l3k [ghstack-poisoned]
wanchaol
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Apr 26, 2024
| cls = module.__class__ | ||
| dct = {"__deepcopy__": unimplemented_deepcopy} | ||
| new_cls = type(f"FSDP{cls.__name__}", (FSDP, cls), dct) | ||
| new_cls = type(f"FSDP{cls.__name__}", (FSDPModule, cls), dct) |
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This won't affect the __repr__ of the wrapped class iiuc?
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I think it should not.
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cc: @wconstab If we land this change, then I think we need to change the PiPPy code to migrate |
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Apr 29, 2024
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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 |
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This PR renames the `FSDP` class to `FSDPModule`. This is a BC breaking change. The rationale is that `FSDPModule` is more descriptive since `fully_shard` is a module-level API (applied to a `module` arg), so the `FSDP` class will always correspond to a module. Also, users commonly import `FullyShardedDataParallel` as `FSDP`, so this can help avoid some name conflict in some cases. Pull Request resolved: #124955 Approved by: https://github.com/wanchaol, https://github.com/wconstab ghstack dependencies: #124651, #124741, #124767, #124768, #124780, #124787
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oops. now I will use try-except in TorchTune to import FSDPModule |
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Stack from ghstack (oldest at bottom):
FSDPtoFSDPModule#124955DeviceMesh.from_group()#124787.to(cpu)#124768This PR renames the
FSDPclass toFSDPModule. This is a BC breaking change. The rationale is thatFSDPModuleis more descriptive sincefully_shardis a module-level API (applied to amodulearg), so theFSDPclass will always correspond to a module.Also, users commonly import
FullyShardedDataParallelasFSDP, so this can help avoid some name conflict in some cases.cc @mrshenli @pritamdamania87 @zhaojuanmao @satgera @rohan-varma @gqchen @aazzolini @osalpekar @jiayisuse @H-Huang @kwen2501 @penguinwu @fegin @XilunWu @wanchaol @fduwjj @wz337 @tianyu-l @wconstab @yf225 @chauhang @d4l3k