Include a note in the gradient synchronization docs on "what can go wrong" and show the timings #1153
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sgugger
approved these changes
Mar 6, 2023
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Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
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Includes a new area in the docs based on my timing experiments performed on Friday, and published in an article, mentioning how if users are not careful about gradient synchronization they can see a 2x+ slowdown when performing gradient accumulation.