"""
A simple example to show how to build up an experiment with ddpg training and testing on MountainCarContinuous-v0
"""
from baconian.core.core import EnvSpec
from baconian.envs.gym_env import make
from baconian.core.agent import Agent
from baconian.algo.misc import EpsilonGreedy
from baconian.core.experiment import Experiment
from baconian.core.flow.train_test_flow import create_train_test_flow
from baconian.algo.mpc import ModelPredictiveControl
from baconian.algo.dynamics.terminal_func.terminal_func import RandomTerminalFunc
from baconian.algo.dynamics.reward_func.reward_func import RandomRewardFunc
from baconian.algo.policy import UniformRandomPolicy
from baconian.algo.dynamics.mlp_dynamics_model import ContinuousMLPGlobalDynamicsModel
from baconian.config.global_config import GlobalConfig
def task_fn():
env = make('Pendulum-v0')
name = 'demo_exp'
env_spec = EnvSpec(obs_space=env.observation_space,
action_space=env.action_space)
mlp_dyna = ContinuousMLPGlobalDynamicsModel(
env_spec=env_spec,
name_scope=name + '_mlp_dyna',
name=name + '_mlp_dyna',
learning_rate=0.01,
mlp_config=[
{
"ACT": "RELU",
"B_INIT_VALUE": 0.0,
"NAME": "1",
"L1_NORM": 0.0,
"L2_NORM": 0.0,
"N_UNITS": 16,
"TYPE": "DENSE",
"W_NORMAL_STDDEV": 0.03
},
{
"ACT": "LINEAR",
"B_INIT_VALUE": 0.0,
"NAME": "OUPTUT",
"L1_NORM": 0.0,
"L2_NORM": 0.0,
"N_UNITS": env_spec.flat_obs_dim,
"TYPE": "DENSE",
"W_NORMAL_STDDEV": 0.03
}
])
algo = ModelPredictiveControl(
dynamics_model=mlp_dyna,
env_spec=env_spec,
config_or_config_dict=dict(
SAMPLED_HORIZON=2,
SAMPLED_PATH_NUM=5,
dynamics_model_train_iter=10
),
name=name + '_mpc',
policy=UniformRandomPolicy(env_spec=env_spec, name='uni_policy')
)
algo.set_terminal_reward_function_for_dynamics_env(reward_func=RandomRewardFunc(name='reward_func'),
terminal_func=RandomTerminalFunc(name='random_terminal'), )
agent = Agent(env=env, env_spec=env_spec,
algo=algo,
name=name + '_agent',
exploration_strategy=EpsilonGreedy(action_space=env_spec.action_space,
init_random_prob=0.5))
flow = create_train_test_flow(
test_every_sample_count=10,
train_every_sample_count=10,
start_test_after_sample_count=5,
start_train_after_sample_count=5,
train_func_and_args=(agent.train, (), dict()),
test_func_and_args=(agent.test, (), dict(sample_count=10)),
sample_func_and_args=(agent.sample, (), dict(sample_count=100,
env=agent.env,
store_flag=True))
)
experiment = Experiment(
tuner=None,
env=env,
agent=agent,
flow=flow,
name=name
)
experiment.run()
from baconian.core.experiment_runner import single_exp_runner
GlobalConfig().set('DEFAULT_LOG_PATH', './log_path')
single_exp_runner(task_fn, del_if_log_path_existed=True)