[KongchangAI]
Unverified50% confidenceFactExact time

In data-parallel training, each GPU independently computes mini-batch gradients, then synchronizes them back to all cards via all-reduce by summing or averaging the gradients across all GPUs to keep model parameters consistent.

1
Sources
50%
Confidence
Long-term
Relevance
9/23/2026
First Seen

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