class AgentThread(StoppableThread, RunnerListener):
def __init__(self, threadId, sess, graph):
StoppableThread.__init__(self)
self.threadId = threadId
self.sess = sess
self.graph = graph
with self.graph.as_default():
if args.atari:
env = gym_env(args.game + 'NoFrameskip-v0')
env = WarmUp(env, min_step=0, max_step=30)
env = ActionRepeat(env, 4)
proproc = PreProPipeline(
[GrayPrePro(),
ResizePrePro(modelOps.INPUT_SIZE)])
rewproc = PreProPipeline([RewardClipper(-1, 1)])
#q_model = A3CModel(modelOps)
else:
if args.game == "Grid":
env = GridEnv()
else:
env = gym_env(args.game)
proproc = None
rewproc = None
#q_model = TabularQModel(modelOps)
for trans in args.env_transforms:
env = globals()[trans](env)
if 'shared_model' in kargs and kargs['shared_model']:
q_model = model
else:
q_model = globals()[args.model](modelOps)
q_model.model_update = model.model
q_model.set_weights(model.get_weights())
summary_writer = tf.summary.FileWriter(
args.logdir + '/thread-' + str(threadId),
K.get_session().graph) if not args.logdir is None else None
agentOps = DqnAgentOps()
agentOps.double_dqn = args.double_dqn
agentOps.REPLAY_START_SIZE = 1
#agentOps.INITIAL_EXPLORATION = 0
agentOps.TARGET_NETWORK_UPDATE_FREQUENCY = 1e10
#replay_buffer = ReplayBuffer(int(1e6), 4, 4, agentOps.REPLAY_START_SIZE, 32)
replay_buffer = None
#if threadId > 0:
if args.nstep > 0:
replay_buffer = NStepBuffer(modelOps.AGENT_HISTORY_LENGTH,
args.nstep)
else:
replay_buffer = ReplayBuffer(args.replay_buffer_size,
modelOps.AGENT_HISTORY_LENGTH,
args.update_frequency,
args.replay_start_size,
args.batch_size)
#print(kargs['agent'])
if kargs['agent'] == 'ActorCriticAgent':
agent = ActorCriticAgent(env.action_space,
q_model,
replay_buffer,
rewproc,
agentOps,
summary_writer,
ac_model_update=model) #
else:
agent = DqnAgent(env.action_space,
q_model,
replay_buffer,
rewproc,
agentOps,
summary_writer,
model_eval=model_eval) #
egreedyAgent = None
if threadId > 0 and kargs[
'agent'] != 'ActorCriticAgent': # first thread is for testing
egreedyOps = EGreedyOps()
egreedyOps.REPLAY_START_SIZE = replay_buffer.REPLAY_START_SIZE
#egreedyOps.FINAL_EXPLORATION_FRAME = int(args.egreedy_final_step / args.thread_count)
#if args.egreedy_decay<1:
# egreedyAgent = EGreedyAgentExp(env.action_space, egreedyOps, agent)
#else:
if len(args.egreedy_props
) > 1 and args.egreedy_props[0] == round(
args.egreedy_props[0]):
cs = np.array(args.egreedy_props)
cs = np.cumsum(cs)
idx = np.searchsorted(cs, threadId)
print('Egreedyagent selected', idx,
args.egreedy_final[idx], args.egreedy_decay[idx],
args.egreedy_final_step[idx])
egreedyAgent = MultiEGreedyAgent(
env.action_space, egreedyOps, agent, [1],
[args.egreedy_final[idx]],
[args.egreedy_decay[idx]],
[args.egreedy_final_step[idx]])
else:
egreedyAgent = MultiEGreedyAgent(
env.action_space, egreedyOps, agent,
args.egreedy_props, args.egreedy_final,
args.egreedy_decay, args.egreedy_final_step)
self.runner = Runner(
env, egreedyAgent if egreedyAgent is not None else agent,
proproc, modelOps.AGENT_HISTORY_LENGTH)
if replay_buffer is not None:
self.runner.listen(replay_buffer, proproc)
self.runner.listen(agent, None)
if egreedyAgent is not None:
self.runner.listen(egreedyAgent, None)
self.runner.listen(self, proproc)
self.agent = agent
self.q_model = q_model
pass
def run(self):
with self.graph.as_default():
self.runner.run()
def on_step(self, ob, action, next_ob, reward, done):
global T
global model, model_eval
with tLock:
T = T + 1
if T % target_network_update_freq == 0 and kargs[
'agent'] != 'ActorCriticAgent':
#print('CLONE TARGET: ' + str(T))
model_eval.set_weights(model.get_weights())
for agent in agents:
agent.model_eval = model_eval
if T % SAVE_FREQ == 0 and args.mode == "train":
if not args.output_dir is None:
model.model.save_weights(args.output_dir +
'/weights_{0}.h5'.format(T))
#if T % 1000 == 0:
# print('STEP', T)
#if self.threadId == 0 and T % 10 == 0:
# self.q_model.set_weights(model.get_weights())
if T % args.render_step == 0 and ENABLE_RENDER:
viewer.imshow(
np.repeat(np.reshape(ob, ob.shape + (1, )), 3, axis=2))
if T > args.max_step:
self.stop()
#print(T)
def stop(self):
super(AgentThread, self).stop()
self.runner.stop()
class AgentThread(StoppableThread, RunnerListener):
def __init__(self, threadId, sess, graph):
StoppableThread.__init__(self)
self.threadId = threadId
self.sess = sess
self.graph = graph
with self.graph.as_default():
if args.game == "Grid":
env = GridEnv()
else:
env = gym_env(args.game)
env = Penalizer(env)
proproc = None
rewproc = None
q_model = CartPoleModel(modelOps)
q_model.model_update = model.model
q_model.set_weights(model.get_weights())
summary_writer = tf.summary.FileWriter(
args.logdir + '/thread-' + str(threadId),
K.get_session().graph) if not args.logdir is None else None
agentOps = DqnAgentOps()
agentOps.double_dqn = args.double_dqn
agentOps.TARGET_NETWORK_UPDATE_FREQUENCY = 20
agentOps.REPLAY_START_SIZE = 1
#agentOps.INITIAL_EXPLORATION = 0
agentOps.TARGET_NETWORK_UPDATE_FREQUENCY = 1e10
#replay_buffer = ReplayBuffer(int(1e6), 4, 4, agentOps.REPLAY_START_SIZE, 32)
replay_buffer = NStepBuffer(modelOps.AGENT_HISTORY_LENGTH,
args.nstep)
agent = DqnAgent(env.action_space,
q_model,
replay_buffer,
rewproc,
agentOps,
summary_writer,
model_eval=model_eval) #
egreedyOps = EGreedyOps()
egreedyOps.REPLAY_START_SIZE = 1
egreedyOps.FINAL_EXPLORATION_FRAME = 5000
egreedyOps.FINAL_EXPLORATION = 0.01
egreedyOps.DECAY = 0.999
egreedyAgent = MultiEGreedyAgent(env.action_space, egreedyOps,
agent, [0.4, 0.3, 0.3],
[0.1, 0.01, 0.5])
self.runner = Runner(env, egreedyAgent, proproc,
modelOps.AGENT_HISTORY_LENGTH)
self.runner.listen(replay_buffer, proproc)
self.runner.listen(agent, None)
self.runner.listen(egreedyAgent, None)
self.runner.listen(self, proproc)
pass
def run(self):
with self.graph.as_default():
self.runner.run()
def on_step(self, ob, action, next_ob, reward, done):
global T
global model, model_eval
with tLock:
T = T + 1
#if T % 1000 == 0:
# print('STEP', T)
if T % target_network_update_freq == 0:
print('CLONE TARGET')
model_eval.set_weights(model.get_weights())
for agent in agents:
agent.model_eval = model_eval
if T % args.render_step == 0 and ENABLE_RENDER:
viewer.imshow(
np.repeat(np.reshape(ob, ob.shape + (1, )), 3, axis=2))
if T % SAVE_FREQ == 0 and args.mode == "train":
if not args.output_dir is None:
model.model.save_weights(args.output_dir +
'/weights_{0}.h5'.format(T))
#print(T)
def stop(self):
super(AgentThread, self).stop()
self.runner.stop()
