heter for collective #37613
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heter for collective #37613
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sandyhouse reviewed Nov 29, 2021
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Broadcast？Broadcast是一个单词。另外，这个接口没有实现，为什么还要添加这个接口呢？
paddle/fluid/imperative/reducer.cc Outdated
XieYunshen approved these changes Dec 1, 2021
chenwhql approved these changes Dec 1, 2021
fuyinno4 approved these changes Dec 1, 2021
raindrops2sea approved these changes Dec 5, 2021
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Describe
Heterogenous mix training represents the model training with heterogenous hardwares. Dygraph mode is only supported now. GPU/NPU/XPU are targeting devices for this prototype work.
The basic idea is very similar as the use of hierarchical communication topology. The low layer reduce the data within each node, while the upper layer reduce across all global nodes.