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[Dygraph] Support no_sync attr for params in DataParallel #47536

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Nov 1, 2022
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[Dygraph] Support no_sync attr for params in DataParallel #47536

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7 changes: 6 additions & 1 deletion python/paddle/fluid/dygraph/parallel.py
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Original file line number Diff line number Diff line change
Expand Up @@ -706,7 +706,12 @@ def init_reducer(self):
if param.trainable:
layers_param.append((sublayer, param))

trainable_parameters = [param for _, param in layers_param]
trainable_parameters = list(
filter(
lambda x: not getattr(x, "no_sync", False),
[param for _, param in layers_param],
)
)

assert len(trainable_parameters) > 0, (
"This model does not have any parameters to train, and "
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