Onnx2trt Installation

These steps were successful installed on Jetson AGX device.

Command:

Clone the repository.
```
git clone https://github.com/onnx/onnx-tensorrt.git && cd onnx-tensorrt
```
BTW, Current version is supported by TensorRT 7.0, if your TensorRT is not 7.0, you should change to others branch.

*This part is for AGX that it needs a lower version.
```
git checkout 6.0-full-dims
```

Clone others submodules.

git submodule update --init --recursive

Cmake it.

*This command is for Jetson.

cmake . -DCUDA_INCLUDE_DIRS=/usr/local/cuda/include -DTENSORRT_ROOT=/usr/src/tensorrt -DGPU_ARCHS="53"

Make and make insall.
```
make 
sudo make install
```

Reference

Build on Jetson