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fix: set fused option for Adam optimizer based on device type #4669

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njzjz merged 1 commit into from
Mar 24, 2025
Merged

fix: set fused option for Adam optimizer based on device type #4669

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4 changes: 3 additions & 1 deletion deepmd/pt/train/training.py
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Original file line number Diff line number Diff line change
Expand Up @@ -594,7 +594,9 @@ def warm_up_linear(step, warmup_steps):
# author: iProzd
if self.opt_type == "Adam":
self.optimizer = torch.optim.Adam(
self.wrapper.parameters(), lr=self.lr_exp.start_lr, fused=True
self.wrapper.parameters(),
lr=self.lr_exp.start_lr,
fused=False if DEVICE.type == "cpu" else True,
)
if optimizer_state_dict is not None and self.restart_training:
self.optimizer.load_state_dict(optimizer_state_dict)
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