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Model_Test.md

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ONNX has a collection of standard tests. This document describes how to run these tests through a C++ program named 'onnx_test_runner' in this repo. You could also run these test through onnxruntime python binding, which would be much easier to setup, but, a bit harder to debug issues.

Get the test data

You should have:

  1. onnx single node test data
  2. onnx model zoo models

Install onnx python package

You can get onnx python package from pypi. However, if you are a onnxruntime developer, you may need to work on a cutting edge ONNX version. In this case, you need to build and install ONNX from source code.

Install ONNX from source code

  1. (windows) set ONNX_ML=1
    (linux) export ONNX_ML=1
  2. Install protobuf and put protoc into your PATH environment. When you compile protobuf, it's better to only enable the static libraries.
  3. run "python setup.py bdist_wheel" and "pip install dist/*.whl"

Generate node test data

$ python3 -m onnx.backend.test.cmd_tools generate-data -o <dest_folder>
e.g.
python3 -m onnx.backend.test.cmd_tools generate-data -o C:\testdata

Get more models

Download https://onnxruntimetestdata.blob.core.windows.net/models/20190419.zip and unzip it.

Compile onnx_test_runner and run the tests

onnx_test_runner is a C++ program. Its source code is in onnxruntime/test/onnx directory.

Usage: onnx_test_runner [options...] <data_root>
Options:
-j [models]: Specifies the number of models to run simultaneously.
-A : Disable memory arena
-c [runs]: Specifies the number of Session::Run() to invoke simultaneously for each model.
-r [repeat]: Specifies the number of times to repeat
-v: verbose
-n [test_case_name]: Specifies a single test case to run.
-e [EXECUTION_PROVIDER]: EXECUTION_PROVIDER could be 'cpu', 'cuda', 'dnnl' or 'tensorrt'. Default: 'cpu'.
-x: Use parallel executor, default (without -x): sequential executor.
-h: help

e.g.
//run the tests under C:\testdata dir and enable CUDA provider
$ onnx_test_runner -e cuda C:\testdata

//run the tests sequentially. It would be easier to debug
$ onnx_test_runner -c 1 -j 1 C:\testdata