Models and examples implement with OneFlow(version >= 0.4.0).
https://github.com/Oneflow-Inc/oneflow#install-with-pip-package
In the root directory, run:
mkdir build
cd build
cmake ..
make -j$(nrpoc)
Example of using ops:
from ops import RoIAlign
pooler = RoIAlign(output_size=(14, 14), spatial_scale=2.0, sampling_ratio=2)