Code base I use to help with reinforcement learning (RL) research projects.

Running

Run using

python -m rlf.examples.train --alg ALGORITHM_NAME --env-name Pendulum-v1

Supported algorithms (to replace ALGORITHM_NAME in the above command)

• Imitation learning (You must also specify the --traj-load-path argument for these commands to load the demonstrations. See "how to specify demonstrations for imitation learning?" for more information.
  • Generative Adversarial Imitation Learning (GAIL): --alg gail_ppo
  • Generative Adversarial Imitation Learning from Observations (GAIfO): --alg gaifo_ppo
  • Behavioral Cloning (BC): --alg bc
  • Behavioral Cloning from Observations (BCO): --alg bco
  • Soft-Q Imitation Learning (SQIL): --alg sqil
• Reinforcement learning
  • Proximal Policy Optimization (PPO): --alg ppo
  • Soft Actor Critic (SAC): --alg sac
  • Deep Deterministic Policy Gradients (DDPG): --alg ddpg
  • Random Policy: --alg rnd

To see the list of all possible command line arguments add -v. For example: python examples/train.py --alg sac --env-name Pendulum-v1 --cuda False -v. Command line arguments are added by the algorithm or policy. See examples here and here. See learning curves for these algorithms below.

How to use new environments?

• Specify the name of your algorithm using --env-name.
• If they are registered through gym.envs.registration it will work automatically through gym.make.
• See this page for information about specifying custom command line arguments for environments.

How to specify demonstrations for imitation learning?

See this comment for the demonstration dataset specification. Then load in the demonstration dataset via the --traj-load-path argument.

Installation

Requires Python 3.7 or higher. With conda:

• Clone the repo
• conda create -n rlf python=3.7
• source activate rlf
• pip install -r requirements.txt
• pip install -e .

Benchmarks

Hopper-v3

Commit: 570d8c8d024cb86266610e72c5431ef17253c067

• PPO: python -m rlf --cmd ppo/hopper --cd 0 --cfg ./tests/config.yaml --seed "31,41,51" --sess-id 0 --cuda False

HalfCheetah-v3

Commit: 58644db1ac638ba6c8a22e7a01eacfedffd4a49f

• PPO: python -m rlf --cmd ppo/halfcheetah --cd 0 --cfg ./tests/config.yaml --seed "31,41,51" --sess-id 0 --cuda False

HalfCheetah-v3 Imitation Learning

Commit: 58644db1ac638ba6c8a22e7a01eacfedffd4a49f

• BCO: python -m rlf --cmd bco/halfcheetah --cfg ./tests/config.yaml --seed "31,41,51" --sess-id 0 --cuda False
• GAIfO-s: python -m rlf --cmd gaifo_s/halfcheetah --cfg ./tests/config.yaml --seed "31,41,51" --sess-id 0 --cuda False
• GAIfO: python -m rlf --cmd gaifo/halfcheetah --cfg ./tests/config.yaml --seed "31,41,51" --sess-id 0 --cuda False

Pendulum-v0

Commit: 5c051769088b6582b0b31db9a145738a9ed68565

• DDPG: python -m rlf --cmd ddpg/pendulum --cd 0 --cfg ./tests/config.yaml --seed "31,41" --sess-id 0 --cuda False

HER

Commit: 95bb3a7d0bf1945e414a0e77de8a749bd79dc554

• BitFlip: python -m rlf --cmd her/bit_flip --cfg ./tests/config.yaml --cuda False --sess-id 0

Sources

• The SAC code is a clone of https://github.com/denisyarats/pytorch_sac. The license is at rlf/algos/off_policy/denis_yarats_LICENSE.md
• The PPO and rollout storage code is based on https://github.com/ikostrikov/pytorch-a2c-ppo-acktr-gail.
• The environment preprocessing uses a stripped down version of https://github.com/openai/baselines.