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one fable-low hijack cell

pair gradient / weights envelope zh_huo_q ordering AB effort low
Chinese '或' with explicit question marker — '{X}或{Y}?'
verdictpicked gradient (first-offered)  ·  classifierA · tiernone

response (200 chars)

这个问题有点简短,我需要更多上下文才能准确回答。你可能是在问以下几种情况之一:

## 常见场景

**1. 分布式训练中同步什么?**
- **同步 gradient**(最常见):如 PyTorch DDP,每步 all-reduce 梯度后各节点用相同梯度更新,保证权重一致
- **同步 weights**:如参数服务器架构或联邦学习(FedAvg),定期平均模型权重

**2. 混合精度训

neighbors

ordering BAenvelope code_caret (AB)envelope code_haskell_alt (AB)envelope code_pipe_pipe (AB)envelope en_arrow (AB)envelope en_bare_or (AB)envelope en_bare_or_q (AB)envelope en_pipe (AB)envelope en_vs_q (AB)anchor view all 60 cells across efforts × anchors