Feature add ZeRO support to Checkpoint in a distributed configuration#2642
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@sadra-barikbin thanks for the update, I left few comments to address
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Aug 22, 2022
…pytorch#2642) * Implement feature * Fix bug in docstring * Fix bugs and tests * Handle pytorch<1.9.0 * Fix mypy error
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Fixes #2623
Description: To call
consolidate_state_dictmethod of ZeRO optimizer on all ranks to before callingstate_dicton target rank, the one responsible for saving the checkpoint.Check list: