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[Bugfix] Only quant-compress modules with weight quantization #387

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[Bugfix] Only quant-compress modules with weight quantization #387

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8 changes: 6 additions & 2 deletions src/compressed_tensors/compressors/model_compressors/model_compressor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -747,12 +747,16 @@ def _replace_weights(self, dense_weight_generator, model: Module):

def map_module_to_scheme(model: Module) -> Dict[str, QuantizationScheme]:
"""
Returns a dictionary which maps quantized module names to their quantization schemes
Returns a dictionary which maps quantized module names to their quantization
schemes. Only includes modules with weight quantization
"""
return {
fix_fsdp_module_name(name): module.quantization_scheme
for name, module in model.named_modules()
if is_module_quantized(module)
if (
hasattr(module, "quantization_scheme") and
module.quantization_scheme.weights is not None
)
}


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