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Allow Torch half models #1577

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Allow Torch half models #1577

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4ac85aa
Fix Argument 1 to "join" has incompatible type "Optional[str]"; expec…
ProgramadorArtificial Sep 24, 2024
c59fe6a
Add param to indicate if the model was saved as float16 and to load a…
ProgramadorArtificial Sep 24, 2024
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3 changes: 3 additions & 0 deletions mmengine/infer/infer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -484,6 +484,9 @@ def _init_model(
model.cfg = cfg
self._load_weights_to_model(model, checkpoint, cfg)
model.to(device)
if 'cuda' in device and checkpoint is not None and checkpoint.get(
'meta', {}).get('float16', False):
model.half()
model.eval()
return model

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1 change: 1 addition & 0 deletions mmengine/runner/_flexible_runner.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1571,6 +1571,7 @@ def save_checkpoint(
elif not isinstance(meta, dict):
raise TypeError(
f'meta should be a dict or None, but got {type(meta)}')
meta['float16'] = False

if by_epoch:
# self.epoch increments 1 after
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1 change: 1 addition & 0 deletions mmengine/runner/runner.py
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Expand Up @@ -2184,6 +2184,7 @@ def save_checkpoint(
elif not isinstance(meta, dict):
raise TypeError(
f'meta should be a dict or None, but got {type(meta)}')
meta['float16'] = False

if by_epoch:
# self.epoch increments 1 after
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5 changes: 3 additions & 2 deletions mmengine/utils/package_utils.py
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Expand Up @@ -69,11 +69,12 @@ def get_installed_path(package: str) -> str:
else:
raise e

possible_path = osp.join(pkg.location, package)
location = '' if pkg.location is None else pkg.location
possible_path = osp.join(location, package)
if osp.exists(possible_path):
return possible_path
else:
return osp.join(pkg.location, package2module(package))
return osp.join(location, package2module(package))


def package2module(package: str):
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