d2e6dd25ea
#19218 tried to fuse Gather/Slice to Split, but the logic has problem. Scalar value or 1-dim value of indices in Gather node will produce different result, scalar value will produce a result tensor by removing the axis dim, will 1-dim indices value will keep that dim, even when the dim value is 1. For example, Node |-> Gather(indices=[0], axis=axis) |-> Gather(indices=[1], axis=axis) |-> Slice(index=2, axis=axis) is same as Node |-> Split(axis=axis) But Node |-> Gather(indices=0, axis=axis) |-> Gather(indices=1, axis=axis) |-> Slice(index=2, axis=axis) is same as Node |-> Split(axis=axis) ||-> Squeeze(axis=axis) ||-> Squeeze(axis=axis) ||-> Previous PR doesn't take such case related to Squeeze/Unsqueeze into account. This PR merges #19218 and GatherToSplitFusion to a general fusion, which relaxes the limit the number of Gather and Slice node number, check all Gather and Slice consumers, if the indices of Gather and start/end of Slice can cover the specific dim of the input tensor, then we can fuse them to a Split, and adding Squeeze if necessary according to the dim count of the indices tensor in Gather. @rui-ren, please check if the fix can still be applied to your model. |
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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 |
|---|---|---|
| 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.