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[checkpointio] Sharded Optimizer Checkpoint for Gemini Plugin (#4302)

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* sharded optimizer checkpoint for gemini plugin

* modify test to reduce testing time

* update doc

* fix bug when keep_gatherd is true under GeminiPlugin
This commit is contained in:
Baizhou Zhang
2023-07-21 14:39:01 +08:00
committed by GitHub
parent fc5cef2c79
commit c6f6005990
12 changed files with 289 additions and 84 deletions
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docs/source/en/basics/booster_plugins.md
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@@ -51,8 +51,6 @@ This plugin implements Zero-3 with chunk-based and heterogeneous memory manageme
{{ autodoc:colossalai.booster.plugin.GeminiPlugin }}
> ⚠ This plugin can only load optimizer checkpoint saved by itself with the same number of processes now. This will be fixed in the future.
### Torch DDP Plugin
More details can be found in [Pytorch Docs](https://pytorch.org/docs/main/generated/torch.nn.parallel.DistributedDataParallel.html#torch.nn.parallel.DistributedDataParallel).