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🛠️ __Changes in this pull request:__ This pull request introduces two significant changes to the project: - Changing on device training checkpoint format: The current implementation stores the on device training checkpoint as a sequence of tensors in multiple files inside a checkpoint folder, which can be inefficient in terms of storage and performance. In this PR, I have modified the checkpoint format to utilize the flatbuffer table to save the checkpoint to a single file, providing a more compact and efficient representation. The changes around this are twofold: - Add the checkpoint flatbuffer schema that will generate the necessary checkpoint source files. - Update the checkpoint saving and loading functionality to use the new format. - Adding support for onnxruntime minimal build: To support scenarios where binary size is a constraint, I made changes to ensure that the training build can work well with the minimal build. 🔍 __Open Issues:__ - In order to extract the optimizer type, the existing implementation re-loaded the onnx optimizer model and parsed it. This is no longer possible, since the model format can either be onnx or ort. One idea is to do the same for ort format optimizer model. This needs some investigation. - Changes to the offline tooling to generate ort format training artifacts. - End-to-end training example showcasing the use of the minimal training build. - Add support for export model for inferencing in a minimal build. |
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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.