README.md

pybind11 demo

Demonstrates how to call a C++ class from Python using pybind11.

How to build this demo

git clone --recursive https://github.com/rusu24edward/pybind11-demo.git
cd pybind11-demo
mkdir build
cd build
cmake ..
make

Example test run

1. Install the python libraries in requirements
2. Run rllib_example.py to see training entirely in python
3. Run rllib_cpp_example.py to see training with the cpp class

Repository details:

bind_wrapper.py is just a helpful function for testing out the wrappings.

build is the directory that stores the built cpp objects

cpp_wrapper.py is the wrapper class that "tricks" the training library into thinking that the class is a gym.Env class.

pybind11 is the submodule that contains pybind11, needed for the bindings between python and C++

rllib_cpp_example.py is a training example using the cpp env object

rllib_example.py is a training example using the python env object

simple_corridor.* is the cpp environment

Timing results

The timing results between python and C++ environment show that for this simple environment there is no gain from using cpp over python. However, we imagine that complicated step functions will benefit from being written in cpp.