Fix num_nodes not set for `DDPFullyShardedNativeStrategy` #17160

awaelchli · 2023-03-21T10:28:40Z

What does this PR do?

This bug only affects the DDPFullyShardedNativeStrategy, because all others have num_nodes defined as a public setter that sets the protected variable internally. This bug only affects 1.9.x.

cc @Borda

github-actions · 2023-03-21T10:29:15Z

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🟢 pytorch_lightning: Tests workflow

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pl-cpu (ubuntu-20.04, pytorch, 3.8, 1.10)	success	✅
pl-cpu (ubuntu-20.04, pytorch, 3.9, 1.11)	success	✅
pl-cpu (ubuntu-20.04, pytorch, 3.10, 1.12)	success	✅
pl-cpu (ubuntu-20.04, pytorch, 3.10, 1.13)	success	✅
pl-cpu (ubuntu-20.04, pytorch, 3.7, 1.10, oldest)	success	✅
pl-cpu (windows-2022, pytorch, 3.9, 1.11)	success	✅
pl-cpu (windows-2022, pytorch, 3.10, 1.12)	success	✅
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pl-cpu (windows-2022, pytorch, 3.7, 1.10, oldest)	success	✅
pl-cpu (slow, macOS-11, pytorch, 3.7, 1.11)	success	✅
pl-cpu (slow, ubuntu-20.04, pytorch, 3.7, 1.11)	success	✅
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install-pkg (macOS-12, pytorch, 3.10)	success	✅
install-pkg (macOS-12, lightning, 3.7)	success	✅
install-pkg (macOS-12, lightning, 3.10)	success	✅
install-pkg (macOS-12, notset, 3.7)	success	✅
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install-pkg (windows-2022, app, 3.7)	success	✅
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install-pkg (windows-2022, fabric, 3.7)	success	✅
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codecov · 2023-03-26T16:40:35Z

Codecov Report

Merging #17160 (3e123a3) into release/LTS (571ffd8) will decrease coverage by 19%.
The diff coverage is 100%.

Additional details and impacted files

@@ Coverage Diff @@ ## release/LTS #17160 +/- ## ============================================== - Coverage 82% 62% -19%  ============================================== Files 476 435 -41 Lines 35264 34773 -491 ============================================== - Hits 28743 21564 -7179  - Misses 6521 13209 +6688

Borda · 2023-03-27T08:30:10Z

fixing links in #17197

awaelchli added 3 commits March 21, 2023 11:14

fix bug

2d63c18

add test

176f737

test

5807260

awaelchli requested review from carmocca, justusschock and williamFalcon as code owners March 21, 2023 10:28

awaelchli added bug Something isn't working strategy: fairscale fsdp (removed) Fully Sharded Data Parallel labels Mar 21, 2023

github-actions bot added the pl Generic label for PyTorch Lightning package label Mar 21, 2023

awaelchli added this to the v1.9.x milestone Mar 21, 2023

changelog

a2021fc

awaelchli force-pushed the bugfix/ddp-sharded-num-nodes branch from c5a5bb1 to a2021fc Compare March 21, 2023 10:30

fix test

37e4e91

awaelchli force-pushed the bugfix/ddp-sharded-num-nodes branch from 34ee803 to 37e4e91 Compare March 21, 2023 10:53

[pre-commit.ci] auto fixes from pre-commit.com hooks

c215207

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carmocca approved these changes Mar 21, 2023

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Borda approved these changes Mar 24, 2023

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mergify bot added the ready PRs ready to be merged label Mar 24, 2023

strict version

ac246fa

awaelchli requested review from lantiga and tchaton as code owners March 26, 2023 16:25

github-actions bot added the fabric lightning.fabric.Fabric label Mar 26, 2023

awaelchli force-pushed the bugfix/ddp-sharded-num-nodes branch from c048fba to ac246fa Compare March 27, 2023 08:21

justusschock approved these changes Mar 27, 2023

View reviewed changes

Borda enabled auto-merge (squash) March 27, 2023 08:30

Merge branch 'release/LTS' into bugfix/ddp-sharded-num-nodes

3e123a3

Borda merged commit b8887f6 into release/LTS Mar 29, 2023

Borda deleted the bugfix/ddp-sharded-num-nodes branch March 29, 2023 12:10

awaelchli mentioned this pull request Apr 22, 2023

Fix num_nodes not set for FSDPStrategy #17438

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Fix num_nodes not set for `DDPFullyShardedNativeStrategy` #17160

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Fix num_nodes not set for DDPFullyShardedNativeStrategy #17160

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Fix num_nodes not set for `DDPFullyShardedNativeStrategy` #17160

Fix num_nodes not set for `DDPFullyShardedNativeStrategy` #17160

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