A model from one of our partners regressed with a failure to evaluate due to the addition of strided 64-bit emulation in the DML EP for the Cast operator. Specifically, the model uses a Cast from int32 to int64 to produce the input shape to a Reshape node. When supplied with a shape dimension of -1 (int32 0xffffffff), the strided emulation in Cast ends up producing an int64 result of 0x00000000ffffffff. This is then fed into the Reshape operator, where it produces an incorrect tensor shape and a failure during evaluation. Generally speaking we assume that using strided 64-bit emulation is safe if a node's inputs came from the DML EP itself. This isn't true in the general case for Cast, however - casting negative signed values can and will produce incorrect outputs with strided emulation. After this change, Cast nodes with 64-bit types will fall back to CPU unless running on a GPU that native supports 64-bit datatypes. Related work items: #31768166 |
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ONNX Runtime is a cross-platform inference and training machine-learning accelerator compatible with deep learning frameworks, PyTorch and TensorFlow/Keras, as well as classical machine learning libraries such as scikit-learn, and more.
ONNX Runtime uses the portable ONNX computation graph format, backed by execution providers optimized for operating systems, drivers and hardware.
Common use cases for ONNX Runtime:
- Improve inference performance for a wide variety of ML models
- Reduce time and cost of training large models
- Train in Python but deploy into a C#/C++/Java app
- Run with optimized performance on different hardware and operating systems
- Support models created in several different frameworks
ONNX Runtime inference APIs are stable and production-ready since the 1.0 release in October 2019 and can enable faster customer experiences and lower costs.
ONNX Runtime training feature was introduced in May 2020 in preview. This feature supports acceleration of PyTorch training on multi-node NVIDIA GPUs for transformer models. Additional updates for this feature are coming soon.
Get Started
- Install
- Inference
- Training
- Documentation
- Samples and Tutorials
- Build Instructions
- Frequently Asked Questions
Build Pipeline Status
| System | CPU | GPU | EPs |
|---|---|---|---|
| Windows | |||
| Linux | |||
| Mac | |||
| Android | |||
| iOS |
Data/Telemetry
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.