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XingTian (刑天) is a componentized library for the development and verification of reinforcement learning algorithms. It supports multiple algorithms, including DQN, DDPG, PPO, and IMPALA etc, which could training agents in multiple environments, such as Gym, Atari, Torcs, StarCraftII and so on. To meet users' requirements for quick verification and solving RL problems, four modules are abstracted: Algorithm, Model, Agent, and Environment. They work in a similar way as the combination of `Lego' building blocks. For details about the architecture, please see the Architecture introduction.

# ubuntu 18.04
sudo apt-get install python3-pip libopencv-dev -y
pip3 install opencv-python

# run with tensorflow 1.15.0 or tensorflow 2.3.1
pip3 install zmq h5py gym[atari] tqdm imageio matplotlib==3.0.3 Ipython pyyaml tensorflow==1.15.0 pyarrow lz4 fabric2 absl-py psutil tensorboardX setproctitle

or, using pip3 install -r requirements.txt

If your want to used PyTorch as the backend, please install it by yourself. Ref Pytorch

# cd PATH/TO/XingTian 
pip3 install -e .

After installation, you could use import xt; print(xt.__Version__) to check whether the installation is successful.

In [1]: import xt

In [2]: xt.__version__
Out[2]: '0.3.0'

Follow's configuration shows a minimal example with Cartpole environment. More detailed description with the parameters of agent, algorithm and environment could been find in the User guide .

alg_para:
  alg_name: PPO
  alg_config:
    process_num: 1
    save_model: True  # default False
    save_interval: 100

env_para:
  env_name: GymEnv
  env_info:
    name: CartPole-v0
    vision: False

agent_para:
  agent_name: PPO
  agent_num : 1
  agent_config:
    max_steps: 200
    complete_step: 1000000
    complete_episode: 3550

model_para:
  actor:
    model_name: PpoMlp
    state_dim: [4]
    action_dim: 2
    input_dtype: float32
    model_config:
      BATCH_SIZE: 200
      CRITIC_LOSS_COEF: 1.0
      ENTROPY_LOSS: 0.01
      LR: 0.0003
      LOSS_CLIPPING: 0.2
      MAX_GRAD_NORM: 5.0
      NUM_SGD_ITER: 8
      SUMMARY: False
      VF_SHARE_LAYERS: False
      activation: tanh
      hidden_sizes: [64, 64]

env_num: 10

In addition, your could find more configuration sets in examples directory.

python3 xt/main.py -f examples/cartpole_ppo.yaml -t train

Set benchmark.eval.model_path for evaluation within the YOUR_CONFIG_FILE.yaml

benchmark:
  eval:
    model_path: /YOUR/PATH/TO/EVAL/models
    gap: 10           # index gap of eval model
    evaluator_num: 1  # the number of evaluator instance

# run command
python3 xt/main.py -f examples/cartpole_ppo.yaml -t evaluate

NOTE: XingTian start with -t train as default.

# Could replace `python3 xt/main.py` with `xt_main` command!
xt_main -f examples/cartpole_ppo.yaml -t train

# train with evaluate
xt_main -f examples/cartpole_ppo.yaml -t train_with_evaluate

1. Write custom module, and register it. More detail guidance on custom module can be found in the Developer Guide
2. Add YOUR-CUSTOM-MODULE name into your_train_configure.yaml
3. Start training with xt_main -f path/to/your_train_configure.yaml :)

1. DQN Reward after 10M time-steps (40M frames).

   env	XingTian Basic DQN	RLlib Basic DQN	Hessel et al. DQN
   BeamRider	6706	2869	~2000
   Breakout	352	287	~150
   QBert	14087	3921	~4000
   SpaceInvaders	947	650	~500

2. PPO Reward after 10M time-steps (40M frames).

   env	XingTian PPO	RLlib PPO	Baselines PPO
   BeamRider	4877	2807	~1800
   Breakout	341	104	~250
   QBert	14771	11085	~14000
   SpaceInvaders	1025	671	~800

3. IMPALA Reward after 10M time-steps (40M frames).

   env	XingTian IMPALA	RLlib IMPALA
   BeamRider	2313	2071
   Breakout	334	385
   QBert	12205	4068
   SpaceInvaders	742	719

1. DQN

   env	XingTian Basic DQN	RLlib Basic DQN
   BeamRider	129	109
   Breakout	117	113
   QBert	111	90
   SpaceInvaders	115	100

2. PPO

   env	XingTian PPO	RLlib PPO
   BeamRider	2422	1618
   Breakout	2497	1535
   QBert	2436	1617
   SpaceInvaders	2438	1608

3. IMPALA

   env	XingTian IMPALA	RLlib IMPALA
   BeamRider	8756	3637
   Breakout	8814	3525
   QBert	8249	3471
   SpaceInvaders	8463	3555

Experiment condition： 72 Intel(R) Xeon(R) Gold 6154 CPU @ 3.00GHz with single Tesla V100

Ray's reward data come from https://github.com/ray-project/rl-experiments, and Throughout from ray 0.8.6 with the same machine condition.

XingTian refers to the following projects: DeepMind/scalable_agent, baselines, ray.

The MIT License(MIT)