ONNC 1.0.0 Release

1 min readApr 11, 2019

Release Note

New Features

NVDLA Backend

  • The first open-source compiler backend that supports NVIDIA Deep Learning Accelerator (NVDLA)
  • Initial release of nv_full hardwre configuration support
  • Support status for the models in the ONNX model zoo — ONNC can compile 6 models and run on NVDLA virtual platform successfully. 2 models are not supported by nv_full configuration. The other 4 models need support for more operators.

Framework Support

  • Interpreter Interface — Target backend now can write a customized interpreter.
  • Vanilla Backend — A template for porting a new backend
  • Statistic API



  • Add more verbose level for debugging or benchmarking (level 1 to 4)
  • Add flag --dry-run : Do not do the inference, just print statistics.
  • Add flag --onnx-opt: Enable onnx optimizer.
  • Add flag -fLinearScanAlgo=<string>: Select linear scan algorithm: first-fit, best-fit. (default is first-fit)
  • Add flag --enable-x86-fuse-conv-relu: Enable x86 fuse conv relu.





The Open Neural Network Compiler (ONNC), a compiler that connects Open Neural Network Exchange Format (ONNX) to every deep learning accelerator (DLA).