See #20643 ### Description Changes order of how we perform quantization to better support mixed precision and fixes a bug found with parameters of inputs for int8 quantization not being correctly handled. We now perform int8 quantization first on a full precision input model, before then quantizing the model to fp16 for remain ops that aren't quantized. The former case was causing us to use a low precision input which could cause larger values to be inserted than intended to the model when int8 quantization is perform. The symptom of this was a failure during quantization steps. Similar to the above input parameters were being uninitialized and resulting in similar failure during int8 quantization. GPU faults were intermittent but present as using uninitialized memory created undefined behavior when we started testing more complex models during mixed precision. ### Motivation and Context In some cases we've seen random data and/or invalid values entering into compiled onnx graphs. This is due to input parameters to the MIGraphX Graph not being set correctly when mixed precision (int8 + fp16) is used and ordering of quantization steps is causes a lower precision model to be used to perform int8 quantization. In most cases the failure is silent/intermittent. In some cases we've observed gpu faults due to out of bounds values being set. This change is required as a large input parameter to the MIGraphX graph is initialized to a large random value, and the next operator is using that for indexing, we get undefined behavior and a GPU fault. |
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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
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General Information: onnxruntime.ai
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Usage documentation and tutorials: onnxruntime.ai/docs
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YouTube video tutorials: youtube.com/@ONNXRuntime
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Companion sample repositories:
- ONNX Runtime Inferencing: microsoft/onnxruntime-inference-examples
- ONNX Runtime Training: microsoft/onnxruntime-training-examples
Builtin Pipeline Status
| System | Inference | Training |
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| Windows | ||
| Linux | ||
| Mac | ||
| Android | ||
| iOS | ||
| Web | ||
| Other |
Third-party Pipeline Status
| System | Inference | Training |
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| Linux |
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.