add persistent_workers #34017
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add persistent_workers #34017
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qingqing01
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Jul 23, 2021
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PR types
New features
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Add persistent_workers argument for DataLoader
persistent_workers=True，inpersistent_workers, worker processes will be resued among epoches, which mean DataLoader only start workers in DataLoader__init__and stop workers when program end, workers remain alive cross epoches