dmlc / dmlc/ps-lite

请问 worker 发送push后, server端是如何合并最新的参数的?

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Description

我所理解的方案,模型参数合并的方法主要有:
1)在worker端更新响应的参数w后,push到server覆盖旧的参数w;
2)server接收的是delta w, 再更新参数w;
不清楚ps-lite是什么策略更新参数的?
在代码中没找到参数更新的代码。。。(可能是我没理解)
@mli @tqchen

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