Support true 16-bit precision with FSDP in Trainer #18219

awaelchli · 2023-08-02T23:57:37Z

What does this PR do?

Follow up to #17609

Removes inheritance of MixedPrecisionPlugin from the FSDP precision plugin
The plugin now handles both the full-precision, mixed-precision, and true half precision.

Changes are similar to #17807

cc @Borda @justusschock @awaelchli @carmocca

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github-actions · 2023-08-09T15:17:09Z

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🟢 pytorch_lightning: Tests workflow

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pl-cpu (ubuntu-20.04, lightning, 3.8, 1.11)	success	✅
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pl-cpu (ubuntu-20.04, lightning, 3.8, 1.11, oldest)	success	✅
pl-cpu (windows-2022, lightning, 3.8, 1.11)	success	✅
pl-cpu (windows-2022, lightning, 3.9, 1.12)	success	✅
pl-cpu (windows-2022, lightning, 3.10, 1.13)	success	✅
pl-cpu (windows-2022, lightning, 3.10, 2.0)	success	✅
pl-cpu (windows-2022, lightning, 3.8, 1.11, oldest)	success	✅
pl-cpu (macOS-11, pytorch, 3.8, 1.13)	success	✅
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pl-cpu (windows-2022, pytorch, 3.8, 1.13)	success	✅

These checks are required after the changes to src/lightning/fabric/connector.py, src/lightning/fabric/plugins/precision/fsdp.py, src/lightning/pytorch/plugins/__init__.py, src/lightning/pytorch/plugins/precision/__init__.py, src/lightning/pytorch/plugins/precision/amp.py, src/lightning/pytorch/plugins/precision/fsdp.py, src/lightning/pytorch/strategies/fsdp.py, src/lightning/pytorch/trainer/connectors/accelerator_connector.py, tests/tests_pytorch/deprecated_api/test_no_removal_version.py, tests/tests_pytorch/plugins/precision/test_fsdp.py, tests/tests_pytorch/strategies/test_fsdp.py, tests/tests_pytorch/trainer/connectors/test_accelerator_connector.py.

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fabric-cpu (macOS-11, lightning, 3.10, 1.13)	success	✅
fabric-cpu (macOS-11, lightning, 3.10, 2.0)	success	✅
fabric-cpu (macOS-11, lightning, 3.8, 1.11, oldest)	success	✅
fabric-cpu (ubuntu-20.04, lightning, 3.8, 1.11)	success	✅
fabric-cpu (ubuntu-20.04, lightning, 3.9, 1.12)	success	✅
fabric-cpu (ubuntu-20.04, lightning, 3.10, 1.13)	success	✅
fabric-cpu (ubuntu-20.04, lightning, 3.10, 2.0)	success	✅
fabric-cpu (ubuntu-20.04, lightning, 3.8, 1.11, oldest)	success	✅
fabric-cpu (windows-2022, lightning, 3.8, 1.11)	success	✅
fabric-cpu (windows-2022, lightning, 3.9, 1.12)	success	✅
fabric-cpu (windows-2022, lightning, 3.10, 1.13)	success	✅
fabric-cpu (windows-2022, lightning, 3.10, 2.0)	success	✅
fabric-cpu (windows-2022, lightning, 3.8, 1.11, oldest)	success	✅
fabric-cpu (macOS-11, fabric, 3.8, 1.13)	success	✅
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fabric-cpu (windows-2022, fabric, 3.8, 1.13)	success	✅

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install-pkg (ubuntu-22.04, fabric, 3.8)	success	✅
install-pkg (ubuntu-22.04, fabric, 3.10)	success	✅
install-pkg (ubuntu-22.04, pytorch, 3.8)	success	✅
install-pkg (ubuntu-22.04, pytorch, 3.10)	success	✅
install-pkg (ubuntu-22.04, lightning, 3.8)	success	✅
install-pkg (ubuntu-22.04, lightning, 3.10)	success	✅
install-pkg (ubuntu-22.04, notset, 3.8)	success	✅
install-pkg (ubuntu-22.04, notset, 3.10)	success	✅
install-pkg (macOS-12, app, 3.8)	success	✅
install-pkg (macOS-12, app, 3.10)	success	✅
install-pkg (macOS-12, fabric, 3.8)	success	✅
install-pkg (macOS-12, fabric, 3.10)	success	✅
install-pkg (macOS-12, pytorch, 3.8)	success	✅
install-pkg (macOS-12, pytorch, 3.10)	success	✅
install-pkg (macOS-12, lightning, 3.8)	success	✅
install-pkg (macOS-12, lightning, 3.10)	success	✅
install-pkg (macOS-12, notset, 3.8)	success	✅
install-pkg (macOS-12, notset, 3.10)	success	✅
install-pkg (windows-2022, app, 3.8)	success	✅
install-pkg (windows-2022, app, 3.10)	success	✅
install-pkg (windows-2022, fabric, 3.8)	success	✅
install-pkg (windows-2022, fabric, 3.10)	success	✅
install-pkg (windows-2022, pytorch, 3.8)	success	✅
install-pkg (windows-2022, pytorch, 3.10)	success	✅
install-pkg (windows-2022, lightning, 3.8)	success	✅
install-pkg (windows-2022, lightning, 3.10)	success	✅
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These checks are required after the changes to src/lightning/fabric/connector.py, src/lightning/fabric/plugins/precision/fsdp.py, src/lightning/pytorch/plugins/__init__.py, src/lightning/pytorch/plugins/precision/__init__.py, src/lightning/pytorch/plugins/precision/amp.py, src/lightning/pytorch/plugins/precision/fsdp.py, src/lightning/pytorch/strategies/fsdp.py, src/lightning/pytorch/trainer/connectors/accelerator_connector.py.

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tests/tests_pytorch/strategies/test_fsdp.py

src/lightning/pytorch/plugins/precision/fsdp.py

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src/lightning/pytorch/plugins/precision/fsdp.py

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awaelchli added feature Is an improvement or enhancement precision: amp Automatic Mixed Precision strategy: fsdp Fully Sharded Data Parallel labels Aug 2, 2023

github-actions bot added fabric lightning.fabric.Fabric pl Generic label for PyTorch Lightning package labels Aug 2, 2023

awaelchli added this to the 2.1 milestone Aug 2, 2023

awaelchli added the refactor label Aug 2, 2023

awaelchli changed the title ~~Support all half-precision modes in FSDP precision plugin for Trainer~~ Support true 16-bit precision with FSDP in Trainer #18217 Aug 2, 2023

awaelchli changed the title ~~Support true 16-bit precision with FSDP in Trainer #18217~~ Support true 16-bit precision with FSDP in Trainer Aug 2, 2023

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awaelchli mentioned this pull request Aug 3, 2023

True half-precision support in Trainer #18193

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awaelchli and others added 8 commits August 3, 2023 15:55

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awaelchli marked this pull request as ready for review August 9, 2023 15:16

awaelchli requested review from carmocca, justusschock, Borda and williamFalcon as code owners August 9, 2023 15:16

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awaelchli commented Aug 9, 2023

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Support true 16-bit precision with FSDP in Trainer #18219

Support true 16-bit precision with FSDP in Trainer #18219

awaelchli commented Aug 2, 2023 •

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Support true 16-bit precision with FSDP in Trainer #18219

Support true 16-bit precision with FSDP in Trainer #18219

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What does this PR do?

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