Vectorize ScaleCUDAKernel in DistributedFusedLamb #40011
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PR types
Performance optimization
PR changes
OPs
Describe
对DistributedFusedLamb里的
ScaleCUDAKernel做向量化优化，VecSize = 8 (FP16)。单个batch的时间：
注：这个Kernel在单机8卡时用不到，主要是单机单卡才会用到。