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Reset scaler state #1999

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merged 2 commits into from
Feb 24, 2023
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mvpatel2000
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@mvpatel2000 mvpatel2000 commented Feb 24, 2023

What does this PR do?

We currently don't reset the scalar state when adjusting grad accum. This is a problem because if we OOM in the wrong spot, we'll hit an error about unscaling after step. This was caught, tested, and shown in graphs here #1998

CO-1830

@mvpatel2000 mvpatel2000 changed the title Reset scaler stte Reset scaler state Feb 24, 2023
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@dakinggg dakinggg left a comment

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LGTM

@mvpatel2000 mvpatel2000 merged commit 0926cbf into mosaicml:dev Feb 24, 2023
@mvpatel2000 mvpatel2000 deleted the mvpatel2000/reset-optimizer branch February 24, 2023 19:28
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2 participants