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Improve ability to convert safetensors files. #1276

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Merged
merged 2 commits into from
May 8, 2023
Merged

Improve ability to convert safetensors files. #1276

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b8279c8
When loading a safetensors file, ignore the metadata header; If no pt…
ubik2 May 2, 2023
d8c36c9
Check for safetensors files first, and only use PyTorch versions when…
ubik2 May 8, 2023
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10 changes: 7 additions & 3 deletions convert.py
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Original file line number Diff line number Diff line change
Expand Up @@ -750,7 +750,7 @@ def load() -> UnquantizedTensor:
return UnquantizedTensor(np.frombuffer(buf, dtype=numpy_dtype).reshape(shape))
description = f'safetensors begin={begin} end={end} type={data_type} path={path}'
return LazyTensor(load, shape, data_type, description)
model = {name: convert(info) for (name, info) in header.items()}
model = {name: convert(info) for (name, info) in header.items() if name != '__metadata__'}
return ModelPlus(model=model, paths=[path], format='safetensors', vocab=None)


Expand Down Expand Up @@ -1035,8 +1035,12 @@ def load_some_model(path: Path) -> ModelPlus:
'''Load a model of any supported format.'''
# Be extra-friendly and accept either a file or a directory:
if path.is_dir():
globs = ["consolidated.00.pth", "pytorch_model-00001-of-*.bin", "*.pt"]
files = [file for glob in globs for file in path.glob(glob)]
# Check if it's a set of safetensors files first
files = list(path.glob("model-00001-of-*.safetensors"))
if not files:
# Try the PyTorch patterns too, with lower priority
globs = ["consolidated.00.pth", "pytorch_model-00001-of-*.bin", "*.pt"]
files = [file for glob in globs for file in path.glob(glob)]
if not files:
# Try GGML too, but with lower priority, since if both a non-GGML
# model and a GGML model exist in the same directory, we assume the
Expand Down