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[tools/mec] Add quantization parameters to tensor information #14374

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[tools/mec] Add quantization parameters to tensor information #14374

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30 changes: 21 additions & 9 deletions tools/model_explorer_circle/src/model_explorer_circle/main.py
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Original file line number Diff line number Diff line change
Expand Up @@ -81,15 +81,27 @@ def add_output_tensor_info(self,
tensor_shape = self.dict_tensor_type_to_string[tensor.type].lower()
tensor_shape += f'{tensor.shape.tolist()}'
tensor_name = tensor.name.decode('utf-8')
me_node.outputsMetadata.append(
graph_builder.MetadataItem(
id=f'{output_id}',
attrs=[
graph_builder.KeyValue(key='shape', value=tensor_shape),
graph_builder.KeyValue(key='tensor_index', value=f'{tensor_id}'),
graph_builder.KeyValue(key='tensor_name', value=tensor_name)
],
))

metadata = graph_builder.MetadataItem(
id=f'{output_id}',
attrs=[
graph_builder.KeyValue(key='shape', value=tensor_shape),
graph_builder.KeyValue(key='tensor_index', value=f'{tensor_id}'),
graph_builder.KeyValue(key='tensor_name', value=tensor_name)
],
)

# Quantization parameter (if exists)
if tensor.quantization:
# Show the most significant 6 digits of the scale
scale = format(tensor.quantization.scale[0], '.6g')
zp = tensor.quantization.zeroPoint[0]
# If the type is larger than INT8, exponential notation will be used
quantparam = f'{scale} * (q + {zp})'
metadata.attrs.append(
graph_builder.KeyValue(key='quantization', value=quantparam))

me_node.outputsMetadata.append(metadata)

def build_graph(self, me_graph: graph_builder.Graph) -> None:
"""Build the graph using the model."""
Expand Down