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Add warning message when no weights are loaded for training #815

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Add warning message when no weights are loaded for training #815

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2 changes: 2 additions & 0 deletions scripts/train_pytorch.py
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Original file line number Diff line number Diff line change
Expand Up @@ -447,6 +447,8 @@ def train_loop(config: _config.TrainConfig):
(model.module if isinstance(model, torch.nn.parallel.DistributedDataParallel) else model), model_path
)
logging.info(f"Loaded PyTorch weights from {config.pytorch_weight_path}")
else:
logging.warning("No weights loaded, training from scratch.")

# Optimizer + learning rate schedule from config
warmup_steps = config.lr_schedule.warmup_steps
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1 change: 1 addition & 0 deletions src/openpi/training/weight_loaders.py
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Expand Up @@ -31,6 +31,7 @@ def load(self, params: at.Params) -> at.Params:
@dataclasses.dataclass(frozen=True)
class NoOpWeightLoader(WeightLoader):
def load(self, params: at.Params) -> at.Params:
logger.warning("No weights loaded, training from scratch.")
return params


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