def train(env_name):
ModelCatalog.register_custom_model("masked_actions_model",
MaskedActionsCNN)
model_config = {
"custom_model": "masked_actions_model",
"conv_filters": [[16, [2, 2], 1], [32, [2, 2], 1]],
"conv_activation": "elu",
"fcnet_hiddens": [128],
"fcnet_activation": "elu",
}
tune_config = {
"num_workers": 24,
"num_gpus": 1,
"batch_mode": "complete_episodes",
"model": model_config,
"env": env_name,
"lr": 0.001,
"multiagent": {
"policies": policies,
"policy_mapping_fn": policy_mapping,
},
"framework": "tf"
}
trainer = DQNTrainer(env=env_name, config=tune_config)
for i in range(1000):
print("== Iteration {}==".format(i))
results = trainer.train()
pretty_print(results)
checkpoint = trainer.save()
print("\nCheckpoint saved at {}\n".format(checkpoint))
def train_model(args):
# We are using custom model and environment, which need to be registered in ray/rllib
# Names can be anything.
register_env("DuckieTown-MultiMap",
lambda _: DiscreteWrapper(MultiMapEnv()))
# Define trainer. Apart from env, config/framework and config/model, which are common among trainers.
# Here is a list of default config keys/values:
# https://docs.ray.io/en/master/rllib-training.html#common-parameters
# For DQN specifically there are also additionally these keys:
# https://docs.ray.io/en/master/rllib-algorithms.html#dqn
trainer = DQNTrainer(
env="DuckieTown-MultiMap",
config={
"framework": "torch",
"model": {
"custom_model": "image-dqn",
},
"learning_starts": 500,
# Doing this allows us to record images from the DuckieTown Gym! Might be useful for report.
# "record_env": True,
"train_batch_size": 16,
# Use a very small buffer to reduce memory usage, default: 50_000.
"buffer_size": 1000,
# Dueling off
"dueling": False,
# No hidden layers
"hiddens": [],
# Don't save experiences.
# "output": None,
# "compress_observations": True,
"num_workers": 0,
"num_gpus": 0.5,
"rollout_fragment_length": 50,
})
# Start training from a checkpoint, if available.
if args.model_path:
trainer.restore(args.model_path)
plot = plotter.Plotter('dqn_agent')
for i in range(args.epochs): # Number of episodes (basically epochs)
print(
f'----------------------- Starting epoch {i} ----------------------- '
)
# train() trains only a single episode
result = trainer.train()
print(result)
plot.add_results(result)
# Save model so far.
checkpoint_path = trainer.save()
print(f'Epoch {i}, checkpoint saved at: {checkpoint_path}')
# Cleanup CUDA memory to reduce memory usage.
torch.cuda.empty_cache()
# Debug log to monitor memory.
print(torch.cuda.memory_summary(device=None, abbreviated=False))
plot.plot('DQN DuckieTown-MultiMap')
def train(num_iters, checkpoint_freq):
obs_space = spaces.Dict({
'obs':
spaces.Box(low=-0.5, high=1.5, shape=(32, 32, 3), dtype=np.float32),
'action_mask':
spaces.Box(low=0, high=1, shape=(5, ), dtype=np.int32)
})
act_space = spaces.Discrete(n=5)
trainer = DQNTrainer(
env='SUMOEnv-v0',
config={
'model': {
'custom_model': 'adaptive-trafficlight',
'custom_options': {},
},
'multiagent': {
'policy_graphs': {
'default_policy_graph': (
DQNPolicyGraph,
obs_space,
act_space,
{},
),
},
'policy_mapping_fn':
function(lambda _: 'default_policy_graph'),
},
'hiddens': [], # Don't postprocess the action scores
'callbacks': {
'on_episode_end': function(on_episode_end),
},
# 'num_workers': 4,
# 'num_gpus_per_worker': 0.25, # All workers on a single GPU
'timesteps_per_iteration': 20000,
})
for i in range(num_iters):
print(f'== Iteration {i}==')
print(pretty_print(trainer.train()))
if i % checkpoint_freq == 0:
checkpoint = trainer.save()
print(f'\nCheckpoint saved at {checkpoint}\n')
def train_model(args, config):
# Define trainer. Apart from env, config/framework and config/model, which are common among trainers.
# Here is a list of default config keys/values:
# https://docs.ray.io/en/master/rllib-training.html#common-parameters
# For DQN specifically there are also additionally these keys:
# https://docs.ray.io/en/master/rllib-algorithms.html#dqn
trainer = DQNTrainer(
env="DuckieTown-MultiMap",
config=config,
)
# Start training from a checkpoint, if available.
if args.model_path:
trainer.restore(args.model_path)
best_mean_reward = -np.inf
epoch_of_best_mean_reward = 0
path_of_best_mean_reward = None
for i in trange(args.epochs, desc="Epochs",
leave=False): # Number of episodes (basically epochs)
# print(f'----------------------- Starting epoch {i} ----------------------- ')
# train() trains only a single episode
result = trainer.train()
# print(result)
# Save model so far.
checkpoint_path = trainer.save()
# print(f'Epoch {i}, checkpoint saved at: {checkpoint_path}')
if result["episode_reward_mean"] > best_mean_reward:
best_mean_reward = result["episode_reward_mean"]
epoch_of_best_mean_reward = i
path_of_best_mean_reward = checkpoint_path
# Cleanup CUDA memory to reduce memory usage.
torch.cuda.empty_cache()
# Debug log to monitor memory.
# print(torch.cuda.memory_summary(device=None, abbreviated=False))
return best_mean_reward, epoch_of_best_mean_reward, path_of_best_mean_reward
def ray_server(run='PPO', address=ADDRESS, port=PORT):
print(ray.init(log_to_driver=False))
connector_config = {
"input": (lambda ioctx: PolicyServerInput(ioctx, address, port)),
"num_workers": 0,
"input_evaluation": [],
"create_env_on_driver": False,
"num_gpus": FLAGS.num_gpus,
}
if run == "DQN":
trainer = DQNTrainer(env=ExternalAtari,
config=dict(connector_config, **CONFIG_DQN))
elif run == "PPO":
trainer = PPOTrainer(env=ExternalAtari,
config=dict(connector_config, **CONFIG_PPO))
else:
raise ValueError("--run must be DQN or PPO")
i = 0
while i < FLAGS.iter:
i += 1
print(pretty_print(trainer.train()))
ray.shutdown()
checkpoint = trainer.save("{}/ckpts".format(FLAGS.train_url.rstrip('/')))
print("checkpoint saved at", checkpoint)
mox.file.copy(
os.path.join(os.path.abspath(os.path.dirname(__file__)),
"config.json"),
os.path.join(FLAGS.train_url, "config.json"))
mox.file.copy(
os.path.join(os.path.abspath(os.path.dirname(__file__)),
"customize_service.py"),
os.path.join(FLAGS.train_url, "customize_service.py"))
mox.file.copy(os.path.join(FLAGS.data_url, "rl_config.py"),
os.path.join(FLAGS.train_url, "rl_config.py"))
del trainer
def main():
ray.init()
logging.getLogger().setLevel(logging.INFO)
date = datetime.now().strftime('%Y%m%d_%H%M%S')
parser = argparse.ArgumentParser()
# parser.add_argument('--scenario', type=str, default='PongNoFrameskip-v4')
parser.add_argument('--config', type=str, default='config/global_config.json', help='config file')
parser.add_argument('--algo', type=str, default='DQN', choices=['DQN', 'DDQN', 'DuelDQN'],
help='choose an algorithm')
parser.add_argument('--inference', action="store_true", help='inference or training')
parser.add_argument('--ckpt', type=str, help='inference or training')
parser.add_argument('--epoch', type=int, default=100, help='number of training epochs')
parser.add_argument('--num_step', type=int, default=10 ** 3,
help='number of timesteps for one episode, and for inference')
parser.add_argument('--save_freq', type=int, default=100, help='model saving frequency')
parser.add_argument('--batch_size', type=int, default=128, help='model saving frequency')
parser.add_argument('--state_time_span', type=int, default=5, help='state interval to receive long term state')
parser.add_argument('--time_span', type=int, default=30, help='time interval to collect data')
args = parser.parse_args()
config_env = env_config(args)
# ray.tune.register_env('gym_cityflow', lambda env_config:CityflowGymEnv(config_env))
config_agent = agent_config(config_env)
trainer = DQNTrainer(
env=CityflowGymEnv,
config=config_agent)
for i in range(1000):
# Perform one iteration of training the policy with DQN
result = trainer.train()
print(pretty_print(result))
if (i+1) % 100 == 0:
checkpoint = trainer.save()
print("checkpoint saved at", checkpoint)
"log_level": "INFO",
"framework": args.framework,
}))
elif args.run == "PPO":
# Example of using PPO (does NOT support off-policy actions).
trainer = PPOTrainer(env=env,
config=dict(
connector_config, **{
"sample_batch_size": 1000,
"train_batch_size": 4000,
"framework": args.framework,
}))
else:
raise ValueError("--run must be DQN or PPO")
checkpoint_path = CHECKPOINT_FILE.format(args.run)
# Attempt to restore from checkpoint if possible.
if os.path.exists(checkpoint_path):
checkpoint_path = open(checkpoint_path).read()
print("Restoring from checkpoint path", checkpoint_path)
trainer.restore(checkpoint_path)
# Serving and training loop
while True:
print(pretty_print(trainer.train()))
checkpoint = trainer.save()
print("Last checkpoint", checkpoint)
with open(checkpoint_path, "w") as f:
f.write(checkpoint)
def main():
ray.init()
logging.getLogger().setLevel(logging.INFO)
date = datetime.now().strftime('%Y%m%d_%H%M%S')
parser = argparse.ArgumentParser()
# parser.add_argument('--scenario', type=str, default='PongNoFrameskip-v4')
parser.add_argument('--config',
type=str,
default='config/global_config.json',
help='config file')
parser.add_argument('--algo',
type=str,
default='DQN',
choices=['DQN', 'DDQN', 'DuelDQN'],
help='choose an algorithm')
parser.add_argument('--inference',
action="store_true",
help='inference or training')
parser.add_argument('--ckpt', type=str, help='inference or training')
parser.add_argument('--epoch',
type=int,
default=10,
help='number of training epochs')
parser.add_argument(
'--num_step',
type=int,
default=10**3,
help='number of timesteps for one episode, and for inference')
parser.add_argument('--save_freq',
type=int,
default=100,
help='model saving frequency')
parser.add_argument('--batch_size',
type=int,
default=128,
help='model saving frequency')
parser.add_argument('--state_time_span',
type=int,
default=5,
help='state interval to receive long term state')
parser.add_argument('--time_span',
type=int,
default=30,
help='time interval to collect data')
args = parser.parse_args()
### dw ###
#parser.add_argument("--num-agents", type=int, default=6)
model_dir = "model/{}_{}".format(args.algo, date)
result_dir = "result/{}_{}".format(args.algo, date)
config_env = env_config(args)
num_agents = len(config_env["intersection_id"])
'''
obs_space = Tuple([
CityFlowEnvRay.observation_space for _ in range(num_agents)
])
act_space = Tuple([
CityFlowEnvRay.action_space for _ in range(num_agents)
])
'''
### dw ###
obs_space = CityFlowEnvRay.observation_space
act_space = CityFlowEnvRay.action_space
ray.tune.register_env('gym_cityflow',
lambda env_config: CityFlowEnvRay(env_config))
#config_agent = agent_config(config_env)
# # build cityflow environment
'''
trainer = DQNTrainer(
env=CityFlowEnvRay,
config=config_agent)
'''
policies = {
#"dqn_policy":(None, obs_space, act_space, config_env)
#"policy_{}".format(i): (None, obs_space, act_space, config_env)
"policy_{}".format(i): (DQNTFPolicy, obs_space, act_space, {})
for i in range(num_agents)
}
policy_ids = list(policies.keys())
config_agent = agent_config(config_env, policies, policy_ids)
trainer = DQNTrainer(env='gym_cityflow', config=config_agent)
for i in range(1000):
# Perform one iteration of training the policy with DQN
result = trainer.train()
print(pretty_print(result))
if i % 30 == 0:
checkpoint = trainer.save()
print("checkpoint saved at", checkpoint)
if __name__ == "__main__":
ray.init()
register_env("ECglass-v2", lambda _: ECglassServing())
# We use DQN since it supports off-policy actions, but you can choose and
# configure any agent.
dqn = DQNTrainer(
env="ECglass-v2",
config={
# Use a single process to avoid needing to set up a load balancer
"num_workers": 0,
# Configure the agent to run short iterations for debugging
"exploration_fraction": 0.01,
"learning_starts": 100,
"timesteps_per_iteration": 200,
})
# Attempt to restore from checkpoint if possible.
if os.path.exists(CHECKPOINT_FILE):
checkpoint_path = open(CHECKPOINT_FILE).read()
print("Restoring from checkpoint path", checkpoint_path)
dqn.restore(checkpoint_path)
# Serving and training loop
while True:
print(pretty_print(dqn.train()))
checkpoint_path = dqn.save()
print("Last checkpoint", checkpoint_path)
with open(CHECKPOINT_FILE, "w") as f:
f.write(checkpoint_path)
connector_config, **{
"sample_batch_size": 1000,
"train_batch_size": 4000,
"framework": args.framework,
}))
else:
raise ValueError("--run must be DQN or PPO")
#this file contains checkpoint file path
checkpoint_path_file = CHECKPOINT_FILE
# Attempt to restore from checkpoint if possible.
if os.path.exists(checkpoint_path_file):
checkpoint_path = open(checkpoint_path_file).read()
if os.path.exists(checkpoint_path):
print("Restoring from checkpoint path", checkpoint_path)
trainer.restore(checkpoint_path)
else:
print("checkpoint file does not exist")
else:
print("file containing checkpoint file path does not exist")
# Serving and training loop
while True:
print(pretty_print(trainer.train()))
checkpoint = trainer.save(parser.modDir)
print("Last checkpoint", checkpoint)
with open(checkpoint_path, "w") as f:
f.write(checkpoint)
"timesteps_per_iteration": 200,
"env_config": {
"observation_size": args.observation_size,
"action_size": args.action_size,
},
})
elif args.run == "PG":
trainer = PGTrainer(
env="srv",
config={
"num_workers": 0,
"env_config": {
"observation_size": args.observation_size,
"action_size": args.action_size,
},
})
# Attempt to restore from checkpoint if possible.
if os.path.exists(args.checkpoint_file):
checkpoint_file = open(args.checkpoint_file).read()
print("Restoring from checkpoint path", checkpoint_file)
trainer.restore(checkpoint_file)
# Serving and training loop
while True:
print(pretty_print(trainer.train()))
checkpoint_file = trainer.save()
print("Last checkpoint", checkpoint_file)
with open(args.checkpoint_file, "w") as f:
f.write(checkpoint_file)
"buffer_size": 50000,
"sample_batch_size": 4,
"train_batch_size": 320,
"schedule_max_timesteps": 2000000,
"exploration_final_eps": 0.01,
"exploration_fraction": 0.1,
"model": {
"dim": 64
}
})
def env_creator(env_config):
return PodWorldEnv(max_steps=100, reward_factor=1.0)
register_env("podworld_env", env_creator)
agent = DQNTrainer(config=config, env="podworld_env")
agent_save_path = None
for i in range(50):
stats = agent.train()
# print(pretty_print(stats))
if i % 10 == 0 and i > 0:
path = agent.save()
if agent_save_path is None:
agent_save_path = path
print('Saved agent at', agent_save_path)
logger.write((i, stats['episode_reward_min']))
print('episode_reward_mean', stats['episode_reward_min'])