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Update convert_hf_to_gguf.py #9542

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Update convert_hf_to_gguf.py #9542

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11 changes: 11 additions & 0 deletions convert_hf_to_gguf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -164,8 +164,19 @@ def get_tensors(self) -> Iterator[tuple[str, Tensor]]:
for name in model_part.keys():
if self.is_safetensors:
if self.lazy:
if (name.endswith("_scale") and name.removesuffix("_scale") in model_part.keys()):
continue
data = model_part.get_slice(name)
data = LazyTorchTensor.from_safetensors_slice(data)
if (name + "_scale" in model_part.keys()):
orig_shape = data.shape
scale = model_part.get_slice(name + "_scale")
shift = torch.tensor([0, 2, 4, 6], dtype=torch.uint8).reshape((4, *(1 for _ in range(len(orig_shape)))))
data = data.unsqueeze(0).expand((4, *orig_shape)) >> shift
data = data & 3
data = (data.float() - 1).reshape((orig_shape[0] * 4, *orig_shape[1:]))
# The scale is inverted
data = data / LazyTorchTensor.from_safetensors_slice(scale).float()
else:
data = model_part.get_tensor(name)
else:
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