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### Description
Introduces the `get_qdq_config()` function to get a quantization
configuration for a full integer QDQ model. This function provides an
easier way of specifying commonly used options and sets convenient
defaults. Specifically:
- Instead of requiring the user to pass a dictionary of `extra_options`,
the new interface adds function parameters for common settings:
- All calibrator settings
- Whether activations/weights are symmetric
- Whether to keep or fuse relu/clip into Q
- Minimum real range for quantization
- Dictionary of tensor quantization overrides.
- Automatically scans the input floating-point model and fills out the
operator types to quantize. Otherwise, only a limited number of operator
types would be quantized by default.
- Detects if the input model uses external data. If so, ensures that the
generated QDQ model also uses external data.
- Detects if the model will use newly introduced quantization types
(int4/int16) with an older opset. If so, forces the use of the
`com.microsoft` domain for Q/DQ ops, which support all types.
- Automatically enables the "extra option" called
`ForceQuantizeNoInputCheck` to ensure data movement operators (e.g.,
Transpose) are always quantized.
- User can pass a function to indicate which nodes to exclude from
quantization.
- The user can still pass their own `extra_options` to override any of
the above if necessary.
```python
from onnxruntime.quantization import get_int_qdq_config, quantize # , ...
# Get QDQ configuration
qdq_config = get_int_qdq_config(
float_model,
data_reader,
calibrate_method=CalibrationMethod.Percentile,
calibrate_args={"percentile": 99.98}, # Converted to extra_options
activation_type=QuantType.QUInt8,
weight_type=QuantType.QInt8,
per_channel=True,
nodes_to_exclude=["Mul"], # Could also be a function. Ex: `lambda model, node: node.op_type == "Softmax"`
# Other options converted to extra_options:
min_real_range=0.0001,
keep_removable_activations=True,
activation_symmetric=True,
weight_symmetric=True,
)
# Quantize model
quantize(float_model_path, qdq_model_path, qdq_config)
```
### Motivation and Context
Need a version of `get_qnn_qdq_config()` that is not EP-specific.
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ONNX Runtime is a cross-platform inference and training machine-learning accelerator.
ONNX Runtime inference can enable faster customer experiences and lower costs, supporting models from deep learning frameworks such as PyTorch and TensorFlow/Keras as well as classical machine learning libraries such as scikit-learn, LightGBM, XGBoost, etc. ONNX Runtime is compatible with different hardware, drivers, and operating systems, and provides optimal performance by leveraging hardware accelerators where applicable alongside graph optimizations and transforms. Learn more →
ONNX Runtime training can accelerate the model training time on multi-node NVIDIA GPUs for transformer models with a one-line addition for existing PyTorch training scripts. Learn more →
Get Started & Resources
-
General Information: onnxruntime.ai
-
Usage documentation and tutorials: onnxruntime.ai/docs
-
YouTube video tutorials: youtube.com/@ONNXRuntime
-
Companion sample repositories:
- ONNX Runtime Inferencing: microsoft/onnxruntime-inference-examples
- ONNX Runtime Training: microsoft/onnxruntime-training-examples
Builtin Pipeline Status
| System | Inference | Training |
|---|---|---|
| Windows | ||
| Linux | ||
| Mac | ||
| Android | ||
| iOS | ||
| Web | ||
| Other |
This project is tested with BrowserStack.
Third-party Pipeline Status
| System | Inference | Training |
|---|---|---|
| Linux |  |
Releases
The current release and past releases can be found here: https://github.com/microsoft/onnxruntime/releases.
For details on the upcoming release, including release dates, announcements, features, and guidance on submitting feature requests, please visit the release roadmap: https://onnxruntime.ai/roadmap.
Data/Telemetry
Windows distributions of this project may collect usage data and send it to Microsoft to help improve our products and services. See the privacy statement for more details.
Contributions and Feedback
We welcome contributions! Please see the contribution guidelines.
For feature requests or bug reports, please file a GitHub Issue.
For general discussion or questions, please use GitHub Discussions.
Code of Conduct
This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.
License
This project is licensed under the MIT License.