ding.example.impala

ding.example.impala

Full Source Code

../ding/example/impala.py

1import gym 2from ditk import logging 3from ding.model import VAC 4from ding.policy import IMPALAPolicy 5from ding.envs import SubprocessEnvManagerV2 6from ding.data import DequeBuffer 7from ding.config import compile_config 8from ding.framework import task, ding_init 9from ding.framework.context import OnlineRLContext 10from ding.framework.middleware import OffPolicyLearner, StepCollector, interaction_evaluator, data_pusher, \ 11 CkptSaver, online_logger, termination_checker 12from ding.utils import set_pkg_seed 13from dizoo.box2d.lunarlander.config.lunarlander_impala_config import main_config, create_config 14from dizoo.box2d.lunarlander.envs import LunarLanderEnv 15 16 17def main(): 18 logging.getLogger().setLevel(logging.INFO) 19 cfg = compile_config(main_config, create_cfg=create_config, auto=True) 20 ding_init(cfg) 21 with task.start(async_mode=False, ctx=OnlineRLContext()): 22 collector_env = SubprocessEnvManagerV2( 23 env_fn=[lambda: LunarLanderEnv(cfg.env) for _ in range(cfg.env.collector_env_num)], cfg=cfg.env.manager 24 ) 25 evaluator_env = SubprocessEnvManagerV2( 26 env_fn=[lambda: LunarLanderEnv(cfg.env) for _ in range(cfg.env.evaluator_env_num)], cfg=cfg.env.manager 27 ) 28 set_pkg_seed(cfg.seed, use_cuda=cfg.policy.cuda) 29 30 model = VAC(**cfg.policy.model) 31 buffer_ = DequeBuffer( 32 size=cfg.policy.other.replay_buffer.replay_buffer_size, sliced=cfg.policy.other.replay_buffer.sliced 33 ) 34 policy = IMPALAPolicy(cfg.policy, model=model) 35 36 task.use(interaction_evaluator(cfg, policy.eval_mode, evaluator_env)) 37 task.use(StepCollector(cfg, policy.collect_mode, collector_env, random_collect_size=1024)) 38 task.use(data_pusher(cfg, buffer_, group_by_env=True)) 39 task.use(OffPolicyLearner(cfg, policy.learn_mode, buffer_)) 40 task.use(online_logger(train_show_freq=300)) 41 task.use(CkptSaver(policy, cfg.exp_name, train_freq=10000)) 42 task.use(termination_checker(max_env_step=2e6)) 43 task.run() 44 45 46if __name__ == "__main__": 47 main()