Reducer buckets have been rebuilt in this iteration.
在跑torch多GPU报错“Reducerbucketshavebeenrebuiltinthisiteration.”原因是torch版本问题,torch1.7以上的distributed.py发生更改导致报错:这玩意是distributed.py里的前向函数报错defforward(self,inputs,*kwargs):ifself.ddp_join_enabled:ones=torch.