ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator
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ashari4 18c97381cd
Detect fake tensor mode if it has already been created. (#16220)
### Description
<!-- Describe your changes. -->

Detect fake tensor mode if it has already been created. Follows this
example in pytorch:
86c7652503/torch/_inductor/compile_fx.py (L280)


### Motivation and Context
As of torch nightly 6/2/23, when trying to run a torch dynamo graph on
the ORT backend, we observe

```
E           torch._dynamo.exc.BackendCompilerFailed: backend='compiler_fn' raised:
E           AssertionError: Mixing fake modes NYI
E           
E           
E           You can suppress this exception and fall back to eager by setting:
E               import torch._dynamo
E               torch._dynamo.config.suppress_errors = True
```
The issue is that `ort_backend.py` creates a new fake tensor mode even
though one has already been created by torch.
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VERSION_NUMBER Update VERSION_NUMBER (#15773) 2023-05-03 15:07:34 -07:00

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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System Inference Training
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System Inference Training
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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.