A simple, readable, and complete, implementation of Hindsight Experience Replay and its variants.
The run.py script uses the library mpi4py to do multithreading, as described in "Hindsight Experience Replay". To run a simple
experiment, execute:
mpirun --use-hwthread-cpus -n 1 python3 run.py --name FetchReach-v1.
To run a simple an advanced experiment, using 19 threads for 38 train episodes, execute:
mpirun --use-hwthread-cpus -n 19 python run.py --name FetchPush-v1 --train-episodes 38