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How Inner Optimizers Shape Replica Scaling

arXiv cs.LG ↗ · 2026-10-15 Cached

该论文研究了分布式LLM训练中内部优化器如何影响副本扩展(replica scaling),识别出伪梯度协方差结构与噪声尺度两个关键因素,并从理论和实证上证明基于白化的预条件优化器能实现最强的worker扩展性能。

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