82 lines
3.1 KiB
Python
82 lines
3.1 KiB
Python
#!/usr/bin/env python
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# coding=utf-8
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'''
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@Author: John
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@Email: johnjim0816@gmail.com
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@Date: 2020-06-11 20:58:21
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@LastEditor: John
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LastEditTime: 2021-09-16 01:31:33
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@Discription:
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@Environment: python 3.7.7
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'''
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import sys,os
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curr_path = os.path.dirname(os.path.abspath(__file__)) # 当前文件所在绝对路径
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parent_path = os.path.dirname(curr_path) # 父路径
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sys.path.append(parent_path) # 添加路径到系统路径sys.path
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import datetime
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import gym
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import torch
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from DDPG.env import NormalizedActions
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from DDPG.agent import DDPG
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from DDPG.train import train,test
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from common.utils import save_results,make_dir
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from common.utils import plot_rewards
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curr_time = datetime.datetime.now().strftime("%Y%m%d-%H%M%S") # 获取当前时间
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algo_name = 'DDPG' # 算法名称
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env_name = 'Pendulum-v1' # 环境名称，gym新版本（约0.21.0之后）中Pendulum-v0改为Pendulum-v1
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class DDPGConfig:
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def __init__(self):
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self.algo_name = algo_name # 算法名称
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self.env_name = env_name # 环境名称
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self.device = torch.device("cuda" if torch.cuda.is_available() else "cpu") # 检测GPU
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self.train_eps = 300 # 训练的回合数
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self.test_eps = 50 # 测试的回合数
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self.gamma = 0.99 # 折扣因子
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self.critic_lr = 1e-3 # 评论家网络的学习率
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self.actor_lr = 1e-4 # 演员网络的学习率
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self.memory_capacity = 8000 # 经验回放的容量
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self.batch_size = 128 # mini-batch SGD中的批量大小
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self.target_update = 2 # 目标网络的更新频率
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self.hidden_dim = 256 # 网络隐藏层维度
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self.soft_tau = 1e-2 # 软更新参数
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class PlotConfig:
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def __init__(self) -> None:
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self.algo_name = algo_name # 算法名称
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self.env_name = env_name # 环境名称
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self.result_path = curr_path+"/outputs/" + self.env_name + \
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'/'+curr_time+'/results/' # 保存结果的路径
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self.model_path = curr_path+"/outputs/" + self.env_name + \
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'/'+curr_time+'/models/' # 保存模型的路径
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self.save = True # 是否保存图片
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self.device = torch.device("cuda" if torch.cuda.is_available() else "cpu") # 检测GPU
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def env_agent_config(cfg,seed=1):
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env = NormalizedActions(gym.make(cfg.env_name)) # 装饰action噪声
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env.seed(seed) # 随机种子
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n_states = env.observation_space.shape[0]
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n_actions = env.action_space.shape[0]
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agent = DDPG(n_states,n_actions,cfg)
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return env,agent
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cfg = DDPGConfig()
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plot_cfg = PlotConfig()
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# 训练
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env,agent = env_agent_config(cfg,seed=1)
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rewards, ma_rewards = train(cfg, env, agent)
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make_dir(plot_cfg.result_path, plot_cfg.model_path)
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agent.save(path=plot_cfg.model_path)
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save_results(rewards, ma_rewards, tag='train', path=plot_cfg.result_path)
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plot_rewards(rewards, ma_rewards, plot_cfg, tag="train") # 画出结果
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# 测试
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env,agent = env_agent_config(cfg,seed=10)
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agent.load(path=plot_cfg.model_path)
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rewards,ma_rewards = test(plot_cfg,env,agent)
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save_results(rewards,ma_rewards,tag = 'test',path = cfg.result_path)
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plot_rewards(rewards, ma_rewards, plot_cfg, tag="test") # 画出结果
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