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Call on_load_checkpoint before loading state_dict #4057

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Oct 14, 2020
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Call on_load_checkpoint before loading state_dict #4057

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7 changes: 4 additions & 3 deletions pytorch_lightning/trainer/connectors/checkpoint_connector.py
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Original file line number Diff line number Diff line change
Expand Up @@ -101,15 +101,16 @@ def restore(self, checkpoint_path: str, on_gpu: bool):
# load model state
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model = self.trainer.get_model()

# load the state_dict on the model automatically
model.load_state_dict(checkpoint['state_dict'])

# give the datamodule a chance to load something
if self.trainer.datamodule is not None:
self.trainer.datamodule.on_load_checkpoint(checkpoint)

# give model a chance to load something
model.on_load_checkpoint(checkpoint)

# load the state_dict on the model automatically
model.load_state_dict(checkpoint['state_dict'])
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if on_gpu:
model.cuda(self.trainer.root_gpu)

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