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[ONNX Parser] Add warning in case of opset mismatch #8356

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merged 2 commits into from
Jun 29, 2021
Merged

[ONNX Parser] Add warning in case of opset mismatch #8356

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7a253eb
add warning in case of opset mismatch
elenaslavutina Jun 28, 2021
ceac8f1
fix CI
islavutin Jun 28, 2021
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18 changes: 14 additions & 4 deletions python/tvm/relay/frontend/onnx.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3617,11 +3617,21 @@ def from_onnx(model, shape=None, dtype="float32", opset=None, freeze_params=Fals
pass
g = GraphProto(shape, dtype, freeze_params)
graph = model.graph

try:
opset_in_model = model.opset_import[0].version if model.opset_import else 1
except AttributeError:
opset_in_model = 1

if opset is None:
try:
opset = model.opset_import[0].version if model.opset_import else 1
except AttributeError:
opset = 1
opset = opset_in_model
elif opset < opset_in_model:
warnings.warn(
""
f"You are overwritting original opset ver = {opset_in_model} by lower ver = {opset}. "
f"That might cause model conversion errors."
)

# Use the graph proto as a scope so that ops can access other nodes if needed.
with g:
mod, params = g.from_onnx(graph, opset)
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