support sharding stage2 + mp hybrid_parallel. #47535
Merged
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Describe
【support sharding stage2 + mp hybrid_parallel】
in the past, we can not combine sharding stage2 and mp hybrid parallel communication, this PR support sharding stage2 + mp hybrid_parallel. now, we can use dp、sharding(stage2) and mp hybrid parallel.
as shown below, we align the loss in the three hybrid parallel: