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pd: fix learning rate setting when resume #4480

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Merged
njzjz merged 2 commits into from
Dec 20, 2024
Merged

pd: fix learning rate setting when resume #4480

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79d3169
Correct resume lr_scheduler step
HydrogenSulfate Dec 20, 2024
5fb1509
refine
HydrogenSulfate Dec 20, 2024
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5 changes: 2 additions & 3 deletions deepmd/pd/train/training.py
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Original file line number Diff line number Diff line change
Expand Up @@ -588,15 +588,14 @@ def warm_up_linear(step, warmup_steps):
if self.opt_type == "Adam":
self.scheduler = paddle.optimizer.lr.LambdaDecay(
learning_rate=self.lr_exp.start_lr,
lr_lambda=lambda step: warm_up_linear(
step + self.start_step, self.warmup_steps
),
lr_lambda=lambda step: warm_up_linear(step, self.warmup_steps),
)
self.optimizer = paddle.optimizer.Adam(
learning_rate=self.scheduler, parameters=self.wrapper.parameters()
)
if optimizer_state_dict is not None and self.restart_training:
self.optimizer.set_state_dict(optimizer_state_dict)
self.scheduler.last_epoch -= 1
else:
raise ValueError(f"Not supported optimizer type '{self.opt_type}'")

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