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Create param list for scales list #2345

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Create param list for scales list #2345

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4 changes: 3 additions & 1 deletion neural_compressor/torch/algorithms/fp8_quant/_core/scale_handler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,7 @@ def create_scale_tensor(orig_scales, scale_format):
if isinstance(orig_scales, (torch.Tensor, float)):
return scale_creation_func(orig_scales)
elif isinstance(orig_scales, list):
return [scale_creation_func(x) for x in orig_scales]
return torch.nn.ParameterList([scale_creation_func(x) for x in orig_scales])
else:
raise ValueError("unexpected scale format value {}".format(scale_format))

Expand All @@ -78,6 +78,8 @@ def scale_to_scalar(scale):
def get_scale_dtype(scale):
if isinstance(scale, torch.Tensor): # tensor case
return scale.dtype
if isinstance(scale, torch.nn.ParameterList): # tensor case
return scale[0].dtype
elif isinstance(scale, float): # already scalar case
return type(scale).__name__
elif scale is None: # possible dynamic scalar case
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