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### Description When and if `If` condition proves to be a constant value, inline the corresponding subgraph yielding to more constant folding and optimization. ### Motivation and Context Newly converted models feature lots of nested `If` nodes that can be inlined and collapsed. In particular, for the sample models we are gaining on TorchScript exported models. For `HF Mobile Bert Dynamo` runtime went down from 0.069 -> 0.046. In total, AOT inlining + `If` constant folding yields improvement of about 50% 0.102 -> 0.046. Brining us very close to TorchScript exported models. `HF Bart Dynamo` further improves 0.668 -> 0.45. AOT + `If` constant folding improves 0.98 -> 0.45 Earlier the size of HF Mobile Bert **161Mb+**, now **98Mb** HF Bart Dynamo pre-optimized model was about **1.2Gb**. It is now **710MB**  |
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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 documention 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 |
|---|---|---|
| Windows | ||
| Linux | ||
| Mac | ||
| Android | ||
| iOS | ||
| Web | ||
| Other |
Third-party Pipeline Status
| System | Inference | Training |
|---|---|---|
| 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.