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Model-Optimizer/modelopt
Gwena Cunha ca94c96c50 [5620660][ONNX] Remove toposort after quantization (#524)
## What does this PR do?

**Type of change:** Bug fix

**Overview:** Loading the model with ONNX graphsurgeon after
quantization and FP16 conversion results in an ONNX model with FP16
output instead of FP32 even though the Cast_to_fp32 layer was correctly
placed in the graph output. This PR fixes that issue.

## Usage

```python
$ python -m modelopt.onnx.quantization --onnx_path=$MODEL_NAME.onnx --high_precision_dtype=fp16
```

## Testing
See bug 5620660.

## Before your PR is "*Ready for review*"
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- **Make sure you read and follow [Contributor
guidelines](https://github.com/NVIDIA/TensorRT-Model-Optimizer/blob/main/CONTRIBUTING.md)**
and your commits are signed.
- **Is this change backward compatible?**: Yes
- **Did you write any new necessary tests?**: No
- **Did you add or update any necessary documentation?**: No
- **Did you update
[Changelog](https://github.com/NVIDIA/TensorRT-Model-Optimizer/blob/main/CHANGELOG.rst)?**:
No

Signed-off-by: gcunhase <4861122+gcunhase@users.noreply.github.com>
2025-11-07 16:44:02 +00:00
..
2025-07-31 22:48:09 +05:30