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from copy import deepcopy
from ditk import logging
from ding.model import DQN
from ding.policy import DQNPolicy
from ding.envs import DingEnvWrapper, SubprocessEnvManagerV2
from ding.data import DequeBuffer
from ding.config import compile_config
from ding.utils import DistContext, get_rank
from ding.framework import task, ding_init
from ding.framework.context import OnlineRLContext
from ding.framework.middleware import OffPolicyLearner, StepCollector, interaction_evaluator, data_pusher, \
eps_greedy_handler, CkptSaver, nstep_reward_enhancer, online_logger, ddp_termination_checker
from ding.utils import set_pkg_seed
from dizoo.atari.envs.atari_env import AtariEnv
from dizoo.atari.config.serial.pong.pong_dqn_config import main_config, create_config
def main():
logging.getLogger().setLevel(logging.INFO)
main_config.exp_name = 'pong_dqn_seed0_ddp'
main_config.policy.multi_gpu = True
cfg = compile_config(main_config, create_cfg=create_config, auto=True)
ding_init(cfg)
with DistContext():
rank = get_rank()
with task.start(async_mode=False, ctx=OnlineRLContext()):
collector_cfg = deepcopy(cfg.env)
collector_cfg.is_train = True
evaluator_cfg = deepcopy(cfg.env)
evaluator_cfg.is_train = False
collector_env = SubprocessEnvManagerV2(
env_fn=[lambda: AtariEnv(collector_cfg) for _ in range(cfg.env.collector_env_num)], cfg=cfg.env.manager
)
evaluator_env = SubprocessEnvManagerV2(
env_fn=[lambda: AtariEnv(evaluator_cfg) for _ in range(cfg.env.evaluator_env_num)], cfg=cfg.env.manager
)
set_pkg_seed(cfg.seed, use_cuda=cfg.policy.cuda)
model = DQN(**cfg.policy.model)
buffer_ = DequeBuffer(size=cfg.policy.other.replay_buffer.replay_buffer_size)
policy = DQNPolicy(cfg.policy, model=model)
if rank == 0:
task.use(interaction_evaluator(cfg, policy.eval_mode, evaluator_env))
task.use(eps_greedy_handler(cfg))
task.use(StepCollector(cfg, policy.collect_mode, collector_env))
task.use(nstep_reward_enhancer(cfg))
task.use(data_pusher(cfg, buffer_))
task.use(OffPolicyLearner(cfg, policy.learn_mode, buffer_))
if rank == 0:
task.use(CkptSaver(policy, cfg.exp_name, train_freq=1000))
task.use(online_logger(record_train_iter=True))
task.use(ddp_termination_checker(max_env_step=int(1e7), rank=rank))
task.run()
if __name__ == "__main__":
main()
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