Add use_hierarchical_allreduce for DistributedFusedLAMB #44821
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Shixiaowei02
approved these changes
Aug 2, 2022
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PR types
Performance optimization
PR changes
OPs
Describe
Add
use_hierarchical_allreduceforDistributedFusedLAMB.假设有N个节点，每个节点有M张GPU卡。当打开
use_hierarchical_allreduce=True和设置nproc_per_node=M后，会建立链两个通信组：