fix bug for fp16 + delay_scale_loss_scale + sharding_stage1_overlap#8314
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## develop #8314 +/- ##
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- Coverage 55.33% 55.33% -0.01%
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Files 614 614
Lines 95341 95342 +1
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Hits 52753 52753
- Misses 42588 42589 +1 ☔ View full report in Codecov by Sentry. |
ZHUI
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Apr 23, 2024
| self.timers and self.timers("optimizer-step").start() | ||
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| if self.args.gradient_accumulation_steps > 1 and self._enable_delay_scale_loss(): | ||
| paddle.device.synchronize() |
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不会，这块必须不能有overlap。这儿需要有个同步，不然可能出现这个grad还没通讯完就做scale的问题。
ZHUI
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Description
fix bug for fp16 + delay_scale_loss_scale + sharding_stage1_overlap