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Move CheckpointConnector.fault_tolerant_auto_save_path out of CheckpointConnector.hpc_resume_path #11092

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Merged
merged 4 commits into from
Dec 21, 2021
Merged

Move CheckpointConnector.fault_tolerant_auto_save_path out of CheckpointConnector.hpc_resume_path #11092

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ab056db
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jjenniferdai Dec 15, 2021
d335efe
_ hpc and auto-save paths
jjenniferdai Dec 17, 2021
ceddfc8
update
jjenniferdai Dec 17, 2021
6f95a73
fault_tolerant_auto_save_path --> fault_tolerant_auto_resume_path
jjenniferdai Dec 18, 2021
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16 changes: 10 additions & 6 deletions pytorch_lightning/trainer/connectors/checkpoint_connector.py
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Original file line number Diff line number Diff line change
Expand Up @@ -56,18 +56,22 @@ def hpc_resume_path(self) -> Optional[str]:
max_version = self.max_ckpt_version_in_folder(dir_path_hpc, "hpc_ckpt_")
if max_version is not None:
return os.path.join(dir_path_hpc, f"hpc_ckpt_{max_version}.ckpt")
auto_save_checkpoint = os.path.join(dir_path_hpc, ".pl_auto_save.ckpt")
if os.path.exists(auto_save_checkpoint):
return auto_save_checkpoint

@property
def fault_tolerant_auto_save_path(self) -> Optional[str]:
auto_save_path = os.path.join(str(self.trainer.weights_save_path), ".pl_auto_save.ckpt")
if os.path.exists(auto_save_path):
return auto_save_path

def resume_start(self, checkpoint_path: Optional[_PATH] = None) -> None:
"""Attempts to pre-load the checkpoint file to memory, with the source path determined in this priority:

1. from HPC weights if found
2. from `checkpoint_path` file if provided
3. don't restore
2. from fault-tolerant auto-saved checkpoint if found
3. from `checkpoint_path` file if provided
4. don't restore
"""
self.resume_checkpoint_path = self.hpc_resume_path or checkpoint_path
self.resume_checkpoint_path = self.hpc_resume_path or self.fault_tolerant_auto_save_path or checkpoint_path
checkpoint_path = self.resume_checkpoint_path
if not checkpoint_path:
return
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