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Fix model loading with OptimizerWrapper #430

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merged 1 commit into from
Nov 6, 2024
Merged

Fix model loading with OptimizerWrapper #430

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11 changes: 9 additions & 2 deletions d3rlpy/optimizers/optimizers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
from torch.optim import SGD, Adam, AdamW, Optimizer, RMSprop
from torch.optim.lr_scheduler import LRScheduler

from ..logging import LOG
from ..serializable_config import DynamicConfig, generate_config_registration
from .lr_schedulers import LRSchedulerFactory, make_lr_scheduler_field

Expand Down Expand Up @@ -102,9 +103,15 @@ def state_dict(self) -> Mapping[str, Any]:
}

def load_state_dict(self, state_dict: Mapping[str, Any]) -> None:
self._optim.load_state_dict(state_dict["optim"])
if "optim" in state_dict:
self._optim.load_state_dict(state_dict["optim"])
else:
LOG.warning("Skip loading optimizer state.")
if self._lr_scheduler:
self._lr_scheduler.load_state_dict(state_dict["lr_scheduler"])
if "lr_scheduler" in state_dict:
self._lr_scheduler.load_state_dict(state_dict["lr_scheduler"])
else:
LOG.warning("Skip loading lr scheduler state.")


@dataclasses.dataclass()
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