pposgd_atlas.py 文件源码

python
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项目:ai-bs-summer17 作者: uchibe 项目源码 文件源码
def train(env_id, num_timesteps, seed):
    from baselines.pposgd import mlp_policy, pposgd_simple
    U.make_session(num_cpu=1).__enter__()
    logger.session().__enter__()
    set_global_seeds(seed)
    env = gym.make(env_id)
    def policy_fn(name, ob_space, ac_space):
        return mlp_policy.MlpPolicy(name=name, ob_space=ob_space, ac_space=ac_space,
            hid_size=64, num_hid_layers=2)
    env = bench.Monitor(env, osp.join(logger.get_dir(), "monitor.json"))
    env.seed(seed)
    gym.logger.setLevel(logging.WARN)
    pposgd_simple.learn(env, policy_fn, 
            max_timesteps=num_timesteps,
            timesteps_per_batch=2048,
            clip_param=0.2, entcoeff=0.0,
            optim_epochs=10, optim_stepsize=3e-4, optim_batchsize=64,
            gamma=0.99, lam=0.95,
        )
    env.close()
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