def main(root_dir, seed, entropy_coeff, n_epochs, dynamic_coeff, clip_norm, regularize):
tf.set_random_seed(seed=seed)
env = GymEnv('MountainCarContinuous-v0')
env.min_action = env.action_space.low[0]
env.max_action = env.action_space.high[0]
env.env.seed(seed)
max_replay_buffer_size = int(1e6)
sampler_params = {'max_path_length': 1000, 'min_pool_size': 1000, 'batch_size': 128}
sampler = SimpleSampler(**sampler_params)
entropy_coeff = entropy_coeff
dynamic_coeff = dynamic_coeff
# env_id = 'ContinuousSpaceMaze{}_{}_RB{}_entropy_{}__Normalize'.format(goal[0], goal[1], max_replay_buffer_size, entropy_coeff)
env_id = 'MountainCarContinuous_RB1e6_entropy{}_epoch{}__Normalize_uniform'.format(entropy_coeff, n_epochs)
env_id = env_id + '_dynamicCoeff' if dynamic_coeff else env_id
os.makedirs(root_dir, exist_ok=True)
env_dir = os.path.join(root_dir, env_id)
os.makedirs(env_dir, exist_ok=True)
current_log_dir = os.path.join(env_dir, 'seed{}'.format(seed))
mylogger.make_log_dir(current_log_dir)
# env_id = 'Test'
print(env_id)
print('environment set done')
# define value function
layer_size = 100
qf = NNQFunction(env_spec=env.spec,
hidden_layer_sizes=(layer_size, layer_size))
vf = NNVFunction(env_spec=env.spec, hidden_layer_sizes=(layer_size, layer_size))
# use GMM policy
policy = GMMPolicy(
env_spec=env.spec,
K=4,
hidden_layer_sizes=[layer_size, layer_size],
qf=qf,
reg=1e-3,
squash=True
)
# TODO
base_kwargs = dict(
epoch_length=1000,
n_epochs=n_epochs,
# scale_reward=1,
n_train_repeat=1,
eval_render=False,
eval_n_episodes=20,
eval_deterministic=True,
)
pool = SimpleReplayBuffer(env_spec=env.spec, max_replay_buffer_size=max_replay_buffer_size)
base_kwargs = dict(base_kwargs, sampler=sampler)
algorithm = SAC(
base_kwargs=base_kwargs,
env=env,
policy=policy,
pool=pool,
qf=qf,
vf=vf,
lr=3e-4,
scale_reward=1.,
discount=0.99,
tau=1e-2,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
dynamic_coeff=dynamic_coeff,
entropy_coeff=entropy_coeff,
clip_norm=clip_norm,
)
# name = env_id + datetime.now().strftime("-%m%d-%Hh-%Mm-%ss")
# mylogger.make_log_dir(name)
algorithm._sess.run(tf.global_variables_initializer())
algorithm.train()
def run_experiment(param):
# instructive = 0.5
# decay = 3e-6
decay = 5e-4
instructive = 0.5
random_arm_init = [-0.05, 0.05]
render = False
reward_shaping = False
horizon = 250
env = normalize(
CRL4DOFWrapper(
# IKWrapper(
SawyerPrimitivePick(
instructive=instructive,
decay=decay,
random_arm_init=random_arm_init,
has_renderer=render,
reward_shaping=reward_shaping,
horizon=horizon,
has_offscreen_renderer=False,
use_camera_obs=False,
use_object_obs=True,
control_freq=100,
),
use_gripper=True))
# )
replay_buffer_params = {
'max_replay_buffer_size': 1e6,
}
sampler_params = {
'max_path_length': horizon - 1,
'min_pool_size': 1000,
'batch_size': 256,
}
pool = SimpleReplayBuffer(env_spec=env.spec, **replay_buffer_params)
sampler = SimpleSampler(**sampler_params)
base_kwargs = dict(
{
'epoch_length': 1500,
'n_train_repeat': 1,
'n_initial_exploration_steps': 5000,
'eval_render': False,
'eval_n_episodes': 1,
'eval_deterministic': True,
'n_epochs': 3e3
},
sampler=sampler)
M = 64
qf1 = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M), name='qf1')
qf2 = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M), name='qf2')
vf = NNVFunction(env_spec=env.spec, hidden_layer_sizes=(M, M))
initial_exploration_policy = UniformPolicy(env_spec=env.spec)
policy = GaussianPolicy(
env_spec=env.spec,
hidden_layer_sizes=(64, 64),
reparameterize=True,
reg=1e-3,
)
algorithm = SAC(
base_kwargs=base_kwargs,
env=env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=3e-4,
scale_reward=5,
discount=0.99,
tau=0.005,
reparameterize=True,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
)
algorithm._sess.run(tf.global_variables_initializer())
algorithm.train()
def run_experiment(variant):
tf.logging.set_verbosity(tf.logging.INFO)
with tf.Session() as sess:
data = joblib.load(variant['snapshot_filename'])
policy = data['policy']
env = data['env']
num_skills = data['policy'].observation_space.flat_dim - data[
'env'].spec.observation_space.flat_dim
best_z = get_best_skill(policy, env, num_skills,
variant['max_path_length'])
fixed_z_env = FixedOptionEnv(env, num_skills, best_z)
tf.logging.info('Finetuning best skill...')
pool = SimpleReplayBuffer(
env_spec=fixed_z_env.spec,
max_replay_buffer_size=variant['max_pool_size'],
)
base_kwargs = dict(
min_pool_size=variant['max_path_length'],
epoch_length=variant['epoch_length'],
n_epochs=variant['n_epochs'],
max_path_length=variant['max_path_length'],
batch_size=variant['batch_size'],
n_train_repeat=variant['n_train_repeat'],
eval_render=False,
eval_n_episodes=1,
eval_deterministic=True,
)
M = variant['layer_size']
if variant['use_pretrained_values']:
qf = data['qf']
vf = data['vf']
else:
del data['qf']
del data['vf']
qf = NNQFunction(
env_spec=fixed_z_env.spec,
hidden_layer_sizes=[M, M],
var_scope='qf-finetune',
)
vf = NNVFunction(
env_spec=fixed_z_env.spec,
hidden_layer_sizes=[M, M],
var_scope='vf-finetune',
)
algorithm = SAC(
base_kwargs=base_kwargs,
env=fixed_z_env,
policy=policy,
pool=pool,
qf=qf,
vf=vf,
lr=variant['lr'],
scale_reward=variant['scale_reward'],
discount=variant['discount'],
tau=variant['tau'],
save_full_state=False,
)
algorithm.train()
def run_experiment(variant):
env_params = variant['env_params']
policy_params = variant['policy_params']
value_fn_params = variant['value_fn_params']
algorithm_params = variant['algorithm_params']
replay_buffer_params = variant['replay_buffer_params']
sampler_params = variant['sampler_params']
task = variant['task']
domain = variant['domain']
env = normalize(ENVIRONMENTS[domain][task](**env_params))
pool = SimpleReplayBuffer(env_spec=env.spec, **replay_buffer_params)
sampler = SimpleSampler(**sampler_params)
base_kwargs = dict(algorithm_params['base_kwargs'], sampler=sampler)
M = value_fn_params['layer_size']
qf1 = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M), name='qf1')
qf2 = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M), name='qf2')
vf = NNVFunction(env_spec=env.spec, hidden_layer_sizes=(M, M))
initial_exploration_policy = UniformPolicy(env_spec=env.spec)
if policy_params['type'] == 'gaussian':
policy = GaussianPolicy(
env_spec=env.spec,
hidden_layer_sizes=(M,M),
reparameterize=policy_params['reparameterize'],
reg=1e-3,
)
elif policy_params['type'] == 'lsp':
nonlinearity = {
None: None,
'relu': tf.nn.relu,
'tanh': tf.nn.tanh
}[policy_params['preprocessing_output_nonlinearity']]
preprocessing_hidden_sizes = policy_params.get('preprocessing_hidden_sizes')
if preprocessing_hidden_sizes is not None:
observations_preprocessor = MLPPreprocessor(
env_spec=env.spec,
layer_sizes=preprocessing_hidden_sizes,
output_nonlinearity=nonlinearity)
else:
observations_preprocessor = None
policy_s_t_layers = policy_params['s_t_layers']
policy_s_t_units = policy_params['s_t_units']
s_t_hidden_sizes = [policy_s_t_units] * policy_s_t_layers
bijector_config = {
'num_coupling_layers': policy_params['coupling_layers'],
'translation_hidden_sizes': s_t_hidden_sizes,
'scale_hidden_sizes': s_t_hidden_sizes,
}
policy = LatentSpacePolicy(
env_spec=env.spec,
squash=policy_params['squash'],
bijector_config=bijector_config,
reparameterize=policy_params['reparameterize'],
q_function=qf1,
observations_preprocessor=observations_preprocessor)
elif policy_params['type'] == 'gmm':
# reparameterize should always be False if using a GMMPolicy
policy = GMMPolicy(
env_spec=env.spec,
K=policy_params['K'],
hidden_layer_sizes=(M, M),
reparameterize=policy_params['reparameterize'],
qf=qf1,
reg=1e-3,
)
else:
raise NotImplementedError(policy_params['type'])
algorithm = SAC(
base_kwargs=base_kwargs,
env=env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=algorithm_params['lr'],
scale_reward=algorithm_params['scale_reward'],
discount=algorithm_params['discount'],
tau=algorithm_params['tau'],
reparameterize=algorithm_params['reparameterize'],
target_update_interval=algorithm_params['target_update_interval'],
action_prior=policy_params['action_prior'],
save_full_state=False,
)
algorithm._sess.run(tf.global_variables_initializer())
algorithm.train()
def run_experiment(variant):
if variant['env_name'] == 'humanoid-rllab':
from rllab.envs.mujoco.humanoid_env import HumanoidEnv
env = normalize(HumanoidEnv())
elif variant['env_name'] == 'swimmer-rllab':
from rllab.envs.mujoco.swimmer_env import SwimmerEnv
env = normalize(SwimmerEnv())
elif variant["env_name"] == "Point2D-v0":
import sac.envs.point2d_env
env = GymEnv(variant["env_name"])
else:
env = normalize(GymEnv(variant['env_name']))
obs_space = env.spec.observation_space
assert isinstance(obs_space, spaces.Box)
low = np.hstack([obs_space.low, np.full(variant['num_skills'], 0)])
high = np.hstack([obs_space.high, np.full(variant['num_skills'], 1)])
aug_obs_space = spaces.Box(low=low, high=high)
aug_env_spec = EnvSpec(aug_obs_space, env.spec.action_space)
pool = SimpleReplayBuffer(
env_spec=aug_env_spec,
max_replay_buffer_size=variant['max_pool_size'],
)
base_kwargs = dict(min_pool_size=variant['max_path_length'],
epoch_length=variant['epoch_length'],
n_epochs=variant['n_epochs'],
max_path_length=variant['max_path_length'],
batch_size=variant['batch_size'],
n_train_repeat=variant['n_train_repeat'],
eval_render=False,
eval_n_episodes=1,
eval_deterministic=True,
sampler=SimpleSampler(
max_path_length=variant["max_path_length"],
min_pool_size=variant["max_path_length"],
batch_size=variant["batch_size"]))
M = variant['layer_size']
qf = NNQFunction(
env_spec=aug_env_spec,
hidden_layer_sizes=[M, M],
)
vf = NNVFunction(
env_spec=aug_env_spec,
hidden_layer_sizes=[M, M],
)
policy = GaussianPolicy(
env_spec=aug_env_spec,
hidden_layer_sizes=[M, M],
reg=0.001,
)
# policy = GMMPolicy(
# env_spec=aug_env_spec,
# K=variant['K'],
# hidden_layer_sizes=[M, M],
# qf=qf,
# reg=0.001,
# )
discriminator = NNDiscriminatorFunction(
env_spec=env.spec,
hidden_layer_sizes=[M, M],
num_skills=variant['num_skills'],
)
algorithm = DIAYN(base_kwargs=base_kwargs,
env=env,
policy=policy,
discriminator=discriminator,
pool=pool,
qf=qf,
vf=vf,
lr=variant['lr'],
scale_entropy=variant['scale_entropy'],
discount=variant['discount'],
tau=variant['tau'],
num_skills=variant['num_skills'],
save_full_state=False,
include_actions=variant['include_actions'],
learn_p_z=variant['learn_p_z'],
add_p_z=variant['add_p_z'],
reparametrize=variant["reparametrize"])
algorithm.train()
def run_experiment(variant):
if variant['env_name'] == 'humanoid-rllab':
from rllab.envs.mujoco.humanoid_env import HumanoidEnv
env = normalize(HumanoidEnv())
elif variant['env_name'] == 'swimmer-rllab':
from rllab.envs.mujoco.swimmer_env import SwimmerEnv
env = normalize(SwimmerEnv())
else:
env = normalize(GymEnv(variant['env_name']))
env = DelayedEnv(env, delay=0.01)
pool = SimpleReplayBuffer(
env_spec=env.spec,
max_replay_buffer_size=variant['max_pool_size'],
)
sampler = RemoteSampler(
max_path_length=variant['max_path_length'],
min_pool_size=variant['max_path_length'],
batch_size=variant['batch_size']
)
base_kwargs = dict(
sampler=sampler,
epoch_length=variant['epoch_length'],
n_epochs=variant['n_epochs'],
n_train_repeat=variant['n_train_repeat'],
eval_render=False,
eval_n_episodes=1,
eval_deterministic=True,
)
M = variant['layer_size']
qf = NNQFunction(
env_spec=env.spec,
hidden_layer_sizes=[M, M],
)
vf = NNVFunction(
env_spec=env.spec,
hidden_layer_sizes=[M, M],
)
policy = GMMPolicy(
env_spec=env.spec,
K=variant['K'],
hidden_layer_sizes=[M, M],
qf=qf,
reparameterize=variant['reparameterize'],
reg=0.001,
)
algorithm = SAC(
base_kwargs=base_kwargs,
env=env,
policy=policy,
pool=pool,
qf=qf,
vf=vf,
lr=variant['lr'],
scale_reward=variant['scale_reward'],
discount=variant['discount'],
tau=variant['tau'],
reparameterize=variant['reparameterize'],
save_full_state=False,
)
algorithm.train()
class EAC(Serializable):
"""
CG: the class that implements the EAC algorithm.
"""
def __init__(
self,
environment_name,
algorithm_name,
lr,
scale_reward,
scale_entropy,
discount,
tau,
max_replay_buffer_size,
sampler_params,
value_func_layers_number,
value_func_layer_size,
policy_func_layers_number,
policy_func_layer_size,
base_ac_alg_params,
q_param_list,
use_ucb=False,
evaluation_strategy='ensemble',
):
"""
CG: the constructor.
:param environment_name: the name of the environment in string.
:param algorithm_name: the name of the AC algorithm to be used in the ensemble.
:param lr: the learning rate to be used in the ensemble.
:param scale_reward: the reward scaling factor.
:param scale_entropy: the entropy scaling factor.
:param discount: the reward discount factor.
:param tau: the target value function updating factor.
:param max_replay_buffer_size: the maximum size of the replay buffer.
:param sampler_params: extra parameter settings for the random sampler.
:param value_func_layers_number: the number of hidden layers for the value network, i.e. V function and Q function.
:param value_func_layer_size: the number of neurons of each hidden layer of the value network.
:param policy_func_layers_number: th number of hidden layers for the policy network.
:param policy_func_layer_size: the number of neurons of each hidden layer of the policy network.
:param base_ac_alg_params: base parameters for the AC algorithm.
:param q_param_list: the list of q values for the ensemble. Each q value in the list represents one AC instance in the ensemble.
:param use_ucb: an indicator regarding the use of ucb for selecting AC instances in the ensemble for exploration.
:param evaluation_strategy: the strategy used for evaluation. We have two strategies available, 'ensemble' and 'best-policy'.
"""
# Set up the environment.
self._environment_name = environment_name
self._env = GymEnv(self._environment_name)
# Set up the algorithm parameters.
self._algorithm_name = algorithm_name
self._lr = lr
self._scale_reward = scale_reward
self._scale_entropy = scale_entropy
self._discount = discount
self._tau = tau
self._use_ucb = use_ucb
self._evaluation_strategy = evaluation_strategy
# Set up the replay buffer.
self._max_replay_buffer_size = max_replay_buffer_size
self._pool = SimpleReplayBuffer(
env_spec=self._env.spec,
max_replay_buffer_size=self._max_replay_buffer_size)
# Set up the environment sampler.
self._sampler_params = sampler_params
self._sampler = SimpleSampler(**self._sampler_params)
# Set up the required number of AC instances in the ensemble. Each AC instance has its own value network and policy network.
self._alg_instances = []
self._base_ac_params = base_ac_alg_params
self._base_alg_params = dict(self._base_ac_params,
sampler=self._sampler)
for id, q_val in enumerate(q_param_list):
# Set up the value function network for an AC instance.
qf1 = NNQFunction(env_spec=self._env.spec,
hidden_layer_sizes=tuple([
value_func_layer_size
for _ in range(value_func_layers_number)
]),
name=str(id) + 'qf1')
qf2 = NNQFunction(env_spec=self._env.spec,
hidden_layer_sizes=tuple([
value_func_layer_size
for _ in range(value_func_layers_number)
]),
name=str(id) + 'qf2')
vf = NNVFunction(env_spec=self._env.spec,
hidden_layer_sizes=tuple([
value_func_layer_size
for _ in range(value_func_layers_number)
]),
name=str(id) + 'vf')
# Set up the policy network for an AC instance.
policy = GaussianPolicy(
env_spec=self._env.spec,
hidden_layer_sizes=tuple([
policy_func_layer_size
for _ in range(policy_func_layers_number)
]),
squash=True,
reparameterize=False,
reg=1.e-3,
name=str(id) + 'gaussian_policy')
initial_exploration_policy = policy
# Set up an AC instance.
if self._algorithm_name == 'sac':
algorithm = SACV1(
base_kwargs=self._base_alg_params,
env=self._env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=self._pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=self._lr,
scale_reward=self._scale_reward,
scale_entropy=self._scale_entropy,
discount=self._discount,
tau=self._tau,
reparameterize=False,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
)
elif self._algorithm_name == 'tac':
algorithm = TAC(
base_kwargs=self._base_alg_params,
env=self._env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=self._pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=self._lr,
scale_reward=self._scale_reward,
scale_entropy=self._scale_entropy,
discount=self._discount,
tau=self._tau,
reparameterize=False,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
tsallisQ=q_val,
)
elif self._algorithm_name == 'rac':
algorithm = RAC(
base_kwargs=self._base_alg_params,
env=self._env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=self._pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=self._lr,
scale_reward=self._scale_reward,
scale_entropy=self._scale_entropy,
discount=self._discount,
tau=self._tau,
reparameterize=False,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
renyiQ=q_val,
)
else:
raise NotImplementedError
# Initialize the AC instance.
# algorithm._sess.run(tf.global_variables_initializer())
# Put the initialized AC instance into the algorithm instance list.
# Each element of the algorithm instance list is made up of
# the algorithm instance,
# the moving average performance of the instance,
# the number of times the instance has been used for exploration previously, and
# the UCB bound.
self._alg_instances.append([algorithm, 0.0, 0.0, 0.0])
# Set up the ensemble Q-function for action selection.
self._Q_ensemble = NNQFunction(
env_spec=self._env.spec,
hidden_layer_sizes=tuple([
value_func_layer_size for _ in range(value_func_layers_number)
]),
name='ensqf')
# ========================================================================
# Set up the training target for the ensemble Q-function for action selection.
# ========================================================================
# Create the observation placeholder.
self._observations_ens_ph = tf.placeholder(
tf.float32,
shape=(None, self._env.spec.observation_space.flat_dim),
name='obv_ens',
)
# Create the next observation placeholder.
self._observations_ens_next_ph = tf.placeholder(
tf.float32,
shape=(None, self._env.spec.observation_space.flat_dim),
name='next_obv_ens',
)
# Create a list of next action placeholders.
self._acts_next_phs = []
for i in range(len(q_param_list)):
act_ens_ph = tf.placeholder(
tf.float32,
shape=(None, self._env.spec.action_space.flat_dim),
name=str(i) + '_next_act_ens',
)
self._acts_next_phs.append(act_ens_ph)
# Create the observed action placeholder.
self._obv_act_ph = tf.placeholder(
tf.float32,
shape=(None, self._env.spec.action_space.flat_dim),
name='act_obv_ens',
)
# Create the reward placeholder.
self._rewards_ph = tf.placeholder(
tf.float32,
shape=(None, ),
name='rew_ens',
)
# Create the terminal placeholder.
self._terminals_ph = tf.placeholder(
tf.float32,
shape=(None, ),
name='ter_ens',
)
# Determine the target Q-value for next step.
self._q_ens_targets = []
for act_next_ph in self._acts_next_phs:
qt = self._Q_ensemble.get_output_for(
self._observations_ens_next_ph, act_next_ph, reuse=True)
self._q_ens_targets.append(qt)
for i, q_t in enumerate(self._q_ens_targets):
if i == 0:
self._q_ens_next = q_t
else:
self._q_ens_next = tf.maximum(self._q_ens_next, q_t)
# self._q_ens_next = self._q_ens_next + q_t
# self._q_ens_next = self._q_ens_next / len(self._q_ens_targets)
# Determine the Q-loss.
self._q_train = self._Q_ensemble.get_output_for(
self._observations_ens_ph, self._obv_act_ph, reuse=True)
self._q_ens_loss = 0.5 * tf.reduce_mean(
(self._q_train -
tf.stop_gradient(self._scale_reward * self._rewards_ph +
(1 - self._terminals_ph) * self._discount *
self._q_ens_next))**2)
# Determine the Q-training operator.
self._q_ens_train_operator = tf.train.AdamOptimizer(self._lr).minimize(
loss=self._q_ens_loss,
var_list=self._Q_ensemble.get_params_internal())
# Set up the tensor flow session.
self._sess = tf_utils.get_default_session()
self._sess.run(tf.global_variables_initializer())
def train(self):
"""
CG: the function that conducts ensemble training.
:return:
"""
# Set up parameters for the training process.
self._n_epochs = self._base_ac_params['n_epochs']
self._epoch_length = self._base_ac_params['epoch_length']
self._n_train_repeat = self._base_ac_params['n_train_repeat']
self._n_initial_exploration_steps = self._base_ac_params[
'n_initial_exploration_steps']
self._eval_render = self._base_ac_params['eval_render']
self._eval_n_episodes = self._base_ac_params['eval_n_episodes']
self._eval_deterministic = self._base_ac_params['eval_deterministic']
# Set up the evaluation environment.
if self._eval_n_episodes > 0:
with tf.variable_scope("low_level_policy", reuse=True):
self._eval_env = deep_clone(self._env)
# Import required libraries for training.
import random
import math
import operator
import numpy as np
# Initialize the sampler.
alg_ins = random.choice(self._alg_instances)
self._sampler.initialize(self._env, alg_ins[0].policy, self._pool)
# Perform the training/evaluation process.
num_episode = 0.
with self._sess.as_default():
gt.rename_root('RLAlgorithm')
gt.reset()
gt.set_def_unique(False)
for epoch in gt.timed_for(range(self._n_epochs + 1),
save_itrs=True):
logger.log('Epoch #%d | ' % epoch)
for t in range(self._epoch_length):
isEpisodeEnd = self._sampler.sample()
# If an episode is ended, we need to update performance statistics for each AC instance and
# pick randomly another AC instance for next episode of exploration.
if isEpisodeEnd:
num_episode = num_episode + 1.
alg_ins[1] = 0.9 * alg_ins[
1] + 0.1 * self._sampler._last_path_return
alg_ins[2] = alg_ins[2] + 1.
if self._use_ucb:
# Select an algorithm instance based on UCB.
selected = False
for ains in self._alg_instances:
if ains[2] < 1.:
alg_ins = ains
selected = True
break
else:
ains[3] = ains[1] + math.sqrt(
2.0 * math.log(num_episode) / ains[2])
if not selected:
alg_ins = max(self._alg_instances,
key=operator.itemgetter(3))
else:
# Select an algorithm instance uniformly at random.
alg_ins = random.choice(self._alg_instances)
self._sampler.set_policy(alg_ins[0].policy)
if not self._sampler.batch_ready():
continue
gt.stamp('sample')
# ================
# Perform training.
# ================
for i in range(self._n_train_repeat):
batch = self._sampler.random_batch()
# ====================================
# Perform training over all AC instances.
# ====================================
for ains in self._alg_instances:
ains[0]._do_training(iteration=t +
epoch * self._epoch_length,
batch=batch)
# =================================================
# Perform training of the action-selection Q-function.
# =================================================
# Set up the feed dictionary.
feed_dict = {
self._observations_ens_ph:
batch['observations'],
self._obv_act_ph:
batch['actions'],
self._observations_ens_next_ph:
batch['next_observations'],
self._rewards_ph:
batch['rewards'],
self._terminals_ph:
batch['terminals'],
}
for i, ains in enumerate(self._alg_instances):
with ains[0].policy.deterministic(
self._eval_deterministic):
feed_dict[self._acts_next_phs[i]] = ains[
0].policy.get_actions(
batch['next_observations'])
# Perform training on the action-selection Q-function.
self._sess.run(self._q_ens_train_operator, feed_dict)
gt.stamp('train')
# ============================================================
# Perform evaluation after one full epoch of training is completed.
# ============================================================
if self._eval_n_episodes < 1:
continue
if self._evaluation_strategy == 'ensemble':
# Use a whole ensemble of AC instances for evaluation.
paths = rollouts(self._eval_env, self,
self._sampler._max_path_length,
self._eval_n_episodes)
elif self._evaluation_strategy == 'best-policy':
# Choose the AC instance with the highest observed performance so far for evaluation.
eval_alg_ins = max(self._alg_instances,
key=operator.itemgetter(1))
with eval_alg_ins[0].policy.deterministic(
self._eval_deterministic):
paths = rollouts(self._eval_env,
eval_alg_ins[0].policy,
self._sampler._max_path_length,
self._eval_n_episodes)
else:
paths = None
if paths is not None:
total_returns = [path['rewards'].sum() for path in paths]
episode_lengths = [len(p['rewards']) for p in paths]
logger.record_tabular('return-average',
np.mean(total_returns))
logger.record_tabular('return-min', np.min(total_returns))
logger.record_tabular('return-max', np.max(total_returns))
logger.record_tabular('return-std', np.std(total_returns))
logger.record_tabular('episode-length-avg',
np.mean(episode_lengths))
logger.record_tabular('episode-length-min',
np.min(episode_lengths))
logger.record_tabular('episode-length-max',
np.max(episode_lengths))
logger.record_tabular('episode-length-std',
np.std(episode_lengths))
self._eval_env.log_diagnostics(paths)
if self._eval_render:
self._eval_env.render(paths)
# Produce log info after each episode of training and evaluation.
times_itrs = gt.get_times().stamps.itrs
eval_time = times_itrs['eval'][-1] if epoch > 1 else 0
total_time = gt.get_times().total
logger.record_tabular('time-train', times_itrs['train'][-1])
logger.record_tabular('time-eval', eval_time)
logger.record_tabular('time-sample', times_itrs['sample'][-1])
logger.record_tabular('time-total', total_time)
logger.record_tabular('epoch', epoch)
self._sampler.log_diagnostics()
logger.dump_tabular()
# logger.pop_prefix()
gt.stamp('eval')
# Terminate the sampler after the training process is completed.
self._sampler.terminate()
def reset(self, dones=None):
"""
CG: the function required in order to support evaluation (or rollout) by using EAC as an ensemble of AC instances.
:param dones:
:return:
"""
pass
def get_action(self, observation):
"""
CG: the function required in order to support evaluation (or rollout) by using EAC as an ensemble of AC instances.
:param observation:
:return:
"""
import numpy as np
# Collect all recommended actions.
recommend_actions = []
for ains in self._alg_instances:
with ains[0].policy.deterministic(self._eval_deterministic):
recommend_actions.append(
ains[0].policy.get_action(observation))
# Determine the value of performing each recommended action.
# Option 1: select actions based on average Q-value.
# action_values = np.zeros(len(recommend_actions))
# for i, ract in enumerate(recommend_actions):
#
# for ains in self._alg_instances:
# action_values[i] = action_values[i] + ains[0]._qf1.eval([observation], [ract[0]])[0]
# action_values[i] = action_values[i] / len(self._alg_instances)
# Option 2: select actions based on average rank.
# from scipy.stats import rankdata
# action_ranks = np.zeros((len(self._alg_instances), len(self._alg_instances)))
# for i, ract in enumerate(recommend_actions):
# for j, ains in enumerate(self._alg_instances):
# action_ranks[j,i] = ains[0]._qf1.eval([observation], [ract[0]])[0]
#
# action_ranks = np.array([rankdata(x, method='dense') for x in action_ranks])
# action_values = np.sum(action_ranks, axis=0)
# Option 3: select actions based on the ensemble action-selection Q-function.
action_values = np.zeros(len(recommend_actions))
for i, ract in enumerate(recommend_actions):
action_values[i] = self._Q_ensemble.eval([observation],
[ract[0]])[0]
# Choose the recommended action with the highest value.
act_ind = np.argmax(action_values)
return recommend_actions[act_ind]
def run_experiment(*_):
env = normalize(VoltVarEnv())
pool = SimpleReplayBuffer(max_replay_buffer_size=1e6, env_spec=env.spec)
sampler = SimpleSampler(max_path_length=168,
min_pool_size=100,
batch_size=256)
base_kwargs = dict(
sampler=sampler,
epoch_length=1000,
n_epochs=50,
n_initial_exploration_steps=10000,
n_train_repeat=1,
# eval_render=False,
eval_n_episodes=10, #50,
eval_deterministic=True)
qf1 = NNQFunction(env_spec=env.spec,
hidden_layer_sizes=[64, 32],
name='qf1')
qf2 = NNQFunction(env_spec=env.spec,
hidden_layer_sizes=[64, 32],
name='qf2')
vf = NNVFunction(env_spec=env.spec, hidden_layer_sizes=[64, 32], name='vf')
qfc1 = NNQFunction(env_spec=env.spec,
hidden_layer_sizes=[64, 32],
name='qfc1')
qfc2 = NNQFunction(env_spec=env.spec,
hidden_layer_sizes=[64, 32],
name='qfc2')
vfc = NNVFunction(env_spec=env.spec,
hidden_layer_sizes=[64, 32],
name='vfc')
initial_exploration_policy = UniformPolicy2(env_spec=env.spec)
# policy = GaussianPolicy(
# env_spec=env.spec,
# hidden_layer_sizes=[64, 32],
# reparameterize=True,
# reg=1e-3,
# )
policy = CategoricalPolicy(env_spec=env.spec, hidden_layer_sizes=[64, 32])
algo = SACD(
base_kwargs=base_kwargs,
env=env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=pool,
qf1=qf1,
qf2=qf2,
qfc1=qfc1,
qfc2=qfc2,
vf=vf,
vfc=vfc,
# plotter=plotter,
lr=1e-3,
scale_reward=50, #2.5, ## 50 bus 4; 10 bus34
scale_rewardc=50, # 2.5, ## 50 bus 4; 10 bus34
alpha=1,
constraint_lr=1e-5, # 1e-5, #1e-6,#bus34 5e-6;
# constraint_coeff=1, # 0,
# constraint_coeff_targ=1,
discount=0.99,
tau=5e-4, #bus34 5e-4;bus123 2.5e-4,;
target_update_interval=1,
#reparameterize=True,
save_full_state=False)
algo.train()
def run_experiment(variant):
if variant['env_name'] == 'humanoid-rllab':
from rllab.envs.mujoco.humanoid_env import HumanoidEnv
env = normalize(HumanoidEnv())
elif variant['env_name'] == 'swimmer-rllab':
from rllab.envs.mujoco.swimmer_env import SwimmerEnv
env = normalize(SwimmerEnv())
else:
env = normalize(GymEnv(variant['env_name']))
obs_space = env.spec.observation_space
assert isinstance(obs_space, spaces.Box)
low = np.hstack([obs_space.low, np.full(variant['num_skills'], 0)])
high = np.hstack([obs_space.high, np.full(variant['num_skills'], 1)])
aug_obs_space = spaces.Box(low=low, high=high)
aug_env_spec = EnvSpec(aug_obs_space, env.spec.action_space)
pool = SimpleReplayBuffer(
env_spec=aug_env_spec,
max_replay_buffer_size=variant['max_pool_size'],
)
base_kwargs = dict(
min_pool_size=variant['max_path_length'],
epoch_length=variant['epoch_length'],
n_epochs=variant['n_epochs'],
max_path_length=variant['max_path_length'],
batch_size=variant['batch_size'],
n_train_repeat=variant['n_train_repeat'],
eval_render=False,
eval_n_episodes=1,
eval_deterministic=True,
)
M = variant['layer_size']
qf = NNQFunction(
env_spec=aug_env_spec,
hidden_layer_sizes=[M, M],
)
vf = NNVFunction(
env_spec=aug_env_spec,
hidden_layer_sizes=[M, M],
)
policy = GMMPolicy(
env_spec=aug_env_spec,
K=variant['K'],
hidden_layer_sizes=[M, M],
qf=qf,
reg=0.001,
)
discriminator = NNDiscriminatorFunction(
env_spec=env.spec,
hidden_layer_sizes=[M, M],
num_skills=variant['num_skills'],
)
algorithm = DIAYN_BD(
base_kwargs=base_kwargs,
env=env,
policy=policy,
discriminator=discriminator,
pool=pool,
qf=qf,
vf=vf,
lr=variant['lr'],
scale_entropy=variant['scale_entropy'],
discount=variant['discount'],
tau=variant['tau'],
num_skills=variant['num_skills'],
save_full_state=False,
include_actions=variant['include_actions'],
learn_p_z=variant['learn_p_z'],
add_p_z=variant['add_p_z'],
# Additional params for behaviour tracking
metric=variant['metric'],
env_id=variant['prefix'],
eval_freq=variant['eval_freq'],
log_dir=get_logdir(args, variant),
)
algorithm.train()
def run_experiment(variant):
# print('MuJoCo')
# env = normalize(GymEnv('HalfCheetah-v1'))
# -----------------------------------------------------
print('Unity3D environment')
env = UnityEnv('/home/recharrs/Apps/UnityEnvob3/RollerBall.x86_64', time_state=True, idx=args.idx, no_graphics=args.no_graphics)
# -----------------------------------------------------
obs_space = env.observation_space
assert isinstance(obs_space, spaces.Box)
low = np.hstack([obs_space.low.flatten(), np.full(variant['num_skills'], 0)])
high = np.hstack([obs_space.high.flatten(), np.full(variant['num_skills'], 1)])
aug_obs_space = spaces.Box(low=low, high=high)
aug_env_spec = EnvSpec(aug_obs_space, env.spec.action_space)
pool = SimpleReplayBuffer(
env_spec=aug_env_spec,
max_replay_buffer_size=5000,
)
base_kwargs = dict(
min_pool_size=variant['max_path_length'],
epoch_length=variant['epoch_length'],
n_epochs=variant['n_epochs'],
max_path_length=variant['max_path_length'],
batch_size=variant['batch_size'],
n_train_repeat=variant['n_train_repeat'],
eval_render=False,
eval_n_episodes=0, # must set to 0 or it will be error
eval_deterministic=True,
)
M = variant['layer_size']
qf = NNQFunction(
env_spec=aug_env_spec,
hidden_layer_sizes=[M, M],
)
vf = NNVFunction(
env_spec=aug_env_spec,
hidden_layer_sizes=[M, M],
)
policy = GMMPolicy(
env_spec=aug_env_spec,
K=variant['K'],
hidden_layer_sizes=[M, M],
qf=qf,
reg=0.001,
)
discriminator = NNDiscriminatorFunction(
env_spec=env.spec,
hidden_layer_sizes=[M, M],
num_skills=variant['num_skills'],
)
algorithm = DIAYN(
base_kwargs=base_kwargs,
env=env,
policy=policy,
discriminator=discriminator,
pool=pool,
qf=qf,
vf=vf,
lr=variant['lr'],
scale_entropy=variant['scale_entropy'],
discount=variant['discount'],
tau=variant['tau'],
num_skills=variant['num_skills'],
save_full_state=False,
include_actions=variant['include_actions'],
learn_p_z=variant['learn_p_z'],
add_p_z=variant['add_p_z'],
)
algorithm.train()
def main(env, seed, entropy_coeff, n_epochs, dynamic_coeff, clip_norm,
normalize_obs, buffer_size, max_path_length, min_pool_size,
batch_size, policy_mode):
tf.set_random_seed(seed=seed)
# define value function
layer_size = 100
qf = NNQFunction(env_spec=env.spec,
hidden_layer_sizes=(layer_size, layer_size))
vf = NNVFunction(env_spec=env.spec,
hidden_layer_sizes=(layer_size, layer_size))
if policy_mode == GMMPolicy:
# use GMM policy
policy = GMMPolicy(env_spec=env.spec,
K=4,
hidden_layer_sizes=[layer_size, layer_size],
qf=qf,
reg=1e-3,
squash=True)
else:
_, mode = str(policy_mode).split('-')
if _ != "Knack":
raise AssertionError(
"policy_mode should be GMMPolicy or Knack-p_control or Knack-exploitation or Knack-exploration"
)
else:
policy = KnackBasedPolicy(
a_lim_lows=env.action_space.low,
a_lim_highs=env.action_space.high,
mode=mode,
env_spec=env.spec,
K=4,
hidden_layer_sizes=[layer_size, layer_size],
qf=qf,
reg=1e-3,
squash=True)
# TODO
base_kwargs = dict(
epoch_length=1000,
n_epochs=n_epochs,
# scale_reward=1,
n_train_repeat=1,
eval_render=False,
eval_n_episodes=20,
eval_deterministic=True,
)
max_replay_buffer_size = buffer_size
pool = SimpleReplayBuffer(env_spec=env.spec,
max_replay_buffer_size=max_replay_buffer_size)
sampler_params = {
'max_path_length': max_path_length,
'min_pool_size': min_pool_size,
'batch_size': batch_size
}
sampler = NormalizeSampler(
**sampler_params) if normalize_obs else SimpleSampler(**sampler_params)
base_kwargs = dict(base_kwargs, sampler=sampler)
algorithm = SAC(base_kwargs=base_kwargs,
env=env,
policy=policy,
pool=pool,
qf=qf,
vf=vf,
lr=3e-4,
scale_reward=1.,
discount=0.99,
tau=1e-2,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
dynamic_coeff=dynamic_coeff,
entropy_coeff=entropy_coeff,
clip_norm=clip_norm)
algorithm._sess.run(tf.global_variables_initializer())
algorithm.train()
def run_experiment(variant):
sub_level_policies_paths = []
args = arg()
if args.domain == 'sawyer-reach':
print("Composition Reach")
goal_size = 0
sub_level_policies_paths.append("ikx")
sub_level_policies_paths.append("iky")
sub_level_policies_paths.append("ikz")
random_arm_init = [-0.1, 0.1]
render = False
reward_shaping = True
horizon = 250
env = normalize(
CRLWrapper(
IKWrapper(
SawyerReach(
# playable params
random_arm_init=random_arm_init,
has_renderer=render,
reward_shaping=reward_shaping,
horizon=horizon,
# constant params
has_offscreen_renderer=False,
use_camera_obs=False,
use_object_obs=True,
control_freq=100,
))))
ep_length = 1500
elif args.domain == 'sawyer-reach-pick':
print("Composition Reach and Pick")
goal_size = 3
sub_level_policies_paths.append(
"log/prim/pick/2019-08-14-18-18-17-370041-PDT/itr_2000.pkl")
sub_level_policies_paths.append(
"log/prim/reach/2019-08-20-15-52-39-191438-PDT/itr_2000.pkl")
render = False
random_arm_init = [-0.0001, 0.0001]
reward_shaping = False
horizon = 1000
env = normalize(
CRLWrapper(
SawyerReachPick(
# playable params
random_arm_init=random_arm_init,
has_renderer=render,
reward_shaping=reward_shaping,
horizon=horizon,
# constant params
has_offscreen_renderer=False,
use_camera_obs=False,
use_object_obs=True,
control_freq=100,
)))
ep_length = 1500
elif args.domain == 'sawyer-reach-pick-simple':
print("Composition Reach and Pick Simple")
goal_size = 3
sub_level_policies_paths.append(
"log/prim/pick/2019-08-14-18-18-17-370041-PDT/itr_2000.pkl")
sub_level_policies_paths.append(
"log/prim/reach/2019-08-20-15-52-39-191438-PDT/itr_2000.pkl")
render = False
random_arm_init = [-0.0001, 0.0001]
reward_shaping = False
horizon = 500
env = normalize(
CRLWrapper(
SawyerReachPick(
# playable params
random_arm_init=random_arm_init,
has_renderer=render,
reward_shaping=reward_shaping,
horizon=horizon,
placement_initializer=UniformRandomSampler(
x_range=[-0.01, 0.01],
y_range=[-0.01, 0.01],
ensure_object_boundary_in_range=False,
z_rotation=None,
),
# constant params
has_offscreen_renderer=False,
use_camera_obs=False,
use_object_obs=True,
control_freq=100,
)))
ep_length = 3000
else:
raise ValueError("Domain not available")
if args.demo:
pool = DemoReplayBuffer(
env_spec=env.spec,
max_replay_buffer_size=1e6,
seq_len=len(sub_level_policies_paths),
)
else:
pool = SimpleReplayBuffer(
env_spec=env.spec,
max_replay_buffer_size=1e6,
seq_len=len(sub_level_policies_paths),
)
sampler = SimpleSampler(
max_path_length=horizon - 1, # should be same as horizon
min_pool_size=1000,
batch_size=256)
base_kwargs = dict(
epoch_length=ep_length,
n_epochs=5e3,
# n_epochs=5,
n_train_repeat=1,
eval_render=False,
eval_n_episodes=1,
eval_deterministic=True,
sampler=sampler,
use_demos=args.demo,
)
M = 128
qf1 = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M), name='qf1')
qf2 = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M), name='qf2')
vf = NNVFunction(env_spec=env.spec, hidden_layer_sizes=(M, M))
initial_exploration_policy = UniformPolicy(env_spec=env.spec)
policy = GaussianPtrPolicy(
env_spec=env.spec,
hidden_layer_sizes=(M, M),
reparameterize=True,
reg=1e-3,
)
algorithm = SAC(
base_kwargs=base_kwargs,
env=env,
g=goal_size,
policy=policy,
sub_level_policies_paths=sub_level_policies_paths,
initial_exploration_policy=initial_exploration_policy,
pool=pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=3e-4,
scale_reward=5,
discount=0.99,
tau=0.005,
reparameterize=True,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
)
algorithm._sess.run(tf.global_variables_initializer())
algorithm.train()
def run_experiment(variant):
env_params = variant['env_params']
policy_params = variant['policy_params']
value_fn_params = variant['value_fn_params']
algorithm_params = variant['algorithm_params']
replay_buffer_params = variant['replay_buffer_params']
sampler_params = variant['sampler_params']
task = variant['task']
domain = variant['domain']
env = normalize(ENVIRONMENTS[domain][task](**env_params))
pool = SimpleReplayBuffer(env_spec=env.spec, **replay_buffer_params)
sampler = SimpleSampler(**sampler_params)
base_kwargs = dict(algorithm_params['base_kwargs'], sampler=sampler)
M = value_fn_params['layer_size']
if variant['num_hidden'] != 256:
M = variant['num_hidden']
qf1 = NNQFunction(env_spec=env.spec,
hidden_layer_sizes=(M, M),
name='qf1',
batchnormvf=variant['batchnormvf'])
qf2 = NNQFunction(env_spec=env.spec,
hidden_layer_sizes=(M, M),
name='qf2',
batchnormvf=variant['batchnormvf'])
vf = NNVFunction(env_spec=env.spec,
hidden_layer_sizes=(M, M),
batchnormvf=variant['batchnormvf'],
dropoutvf_keep_prob=variant['dropoutvf'])
initial_exploration_policy = UniformPolicy(env_spec=env.spec)
if policy_params['type'] == 'gaussian':
policy = GaussianPolicy(env_spec=env.spec,
hidden_layer_sizes=(M, M),
reparameterize=policy_params['reparameterize'],
todropoutpi=(variant['dropoutpi'] < 1.0),
dropoutpi=variant['dropoutpi'],
batchnormpi=variant['batchnormpi'])
elif policy_params['type'] == 'lsp':
nonlinearity = {
None: None,
'relu': tf.nn.relu,
'tanh': tf.nn.tanh
}[policy_params['preprocessing_output_nonlinearity']]
preprocessing_hidden_sizes = policy_params.get(
'preprocessing_hidden_sizes')
if preprocessing_hidden_sizes is not None:
observations_preprocessor = MLPPreprocessor(
env_spec=env.spec,
layer_sizes=preprocessing_hidden_sizes,
output_nonlinearity=nonlinearity)
else:
observations_preprocessor = None
policy_s_t_layers = policy_params['s_t_layers']
policy_s_t_units = policy_params['s_t_units']
s_t_hidden_sizes = [policy_s_t_units] * policy_s_t_layers
bijector_config = {
'num_coupling_layers': policy_params['coupling_layers'],
'translation_hidden_sizes': s_t_hidden_sizes,
'scale_hidden_sizes': s_t_hidden_sizes,
}
policy = LatentSpacePolicy(
env_spec=env.spec,
squash=policy_params['squash'],
bijector_config=bijector_config,
reparameterize=policy_params['reparameterize'],
q_function=qf1,
observations_preprocessor=observations_preprocessor)
elif policy_params['type'] == 'gmm':
# reparameterize should always be False if using a GMMPolicy
policy = GMMPolicy(
env_spec=env.spec,
K=policy_params['K'],
hidden_layer_sizes=(M, M),
reparameterize=policy_params['reparameterize'],
qf=qf1,
reg=1e-3,
)
else:
raise NotImplementedError(policy_params['type'])
if variant['reward_scale'] < 0:
scale_rew = algorithm_params['scale_reward']
else:
scale_rew = variant['reward_scale']
algorithm = SAC(
base_kwargs=base_kwargs,
env=env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=algorithm_params['lr'] if variant['lr'] < 0 else variant['lr'],
scale_reward=scale_rew,
discount=algorithm_params['discount'],
tau=variant['tau'],
reparameterize=algorithm_params['reparameterize'],
target_update_interval=algorithm_params['target_update_interval'],
action_prior=policy_params['action_prior'],
save_full_state=False,
l1regpi=variant['l1regpi'],
l2regpi=variant['l2regpi'],
l1regvf=variant['l1regvf'],
l2regvf=variant['l2regvf'],
ent_coef=variant['ent_coef'],
wclippi=variant['wclippi'],
wclipvf=variant['wclipvf'],
dropoutpi=variant['dropoutpi'],
dropoutvf=variant['dropoutvf'],
batchnormpi=variant['batchnormpi'],
batchnormvf=variant['batchnormvf'])
algorithm._sess.run(tf.global_variables_initializer())
for v in tf.trainable_variables():
print(v.name)
algorithm.train()
if variant['policypath'] != '':
save_w_path = os.path.expanduser(variant['policypath'])
toexport = []
savesess = algorithm._sess
for v in tf.get_collection(tf.GraphKeys.TRAINABLE_VARIABLES,
scope='gaussian_policy'):
toexport.append(savesess.run(v))
np.savetxt(save_w_path,
np.concatenate(toexport, axis=None),
delimiter=',')
if variant['valuepath'] != '':
save_w_path = os.path.expanduser(variant['valuepath'])
toexport = []
savesess = algorithm._sess
for v in tf.get_collection(tf.GraphKeys.TRAINABLE_VARIABLES,
scope='qf1'):
toexport.append(savesess.run(v))
for v in tf.get_collection(tf.GraphKeys.TRAINABLE_VARIABLES,
scope='qf2'):
toexport.append(savesess.run(v))
for v in tf.get_collection(tf.GraphKeys.TRAINABLE_VARIABLES,
scope='vf'):
toexport.append(savesess.run(v))
np.savetxt(save_w_path,
np.concatenate(toexport, axis=None),
delimiter=',')
def run_experiment(variant):
sub_level_policies_paths = []
# args = parse_args()
args = arg()
if args.domain == 'sawyer-reach':
goal_size = 0
sub_level_policies_paths.append("ikx")
sub_level_policies_paths.append("iky")
sub_level_policies_paths.append("ikz")
random_arm_init = [-0.1, 0.1]
render = False
reward_shaping = True
horizon = 250
env = normalize(
CRLWrapper(
IKWrapper(
SawyerReach(
# playable params
random_arm_init=random_arm_init,
has_renderer=render,
reward_shaping=reward_shaping,
horizon=horizon,
# constant params
has_offscreen_renderer=False,
use_camera_obs=False,
use_object_obs=True,
control_freq=100,
))))
else:
raise ValueError("Domain not available")
pool = SimpleReplayBuffer(
env_spec=env.spec,
max_replay_buffer_size=1e6,
seq_len=len(sub_level_policies_paths),
)
sampler = SimpleSampler(
max_path_length=horizon - 1, # should be same as horizon
min_pool_size=1000,
batch_size=256)
base_kwargs = dict(
epoch_length=1000,
n_epochs=2e3,
# n_epochs=5,
n_train_repeat=1,
eval_render=False,
eval_n_episodes=1,
eval_deterministic=True,
sampler=sampler)
M = 128
qf1 = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M), name='qf1')
qf2 = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M), name='qf2')
vf = NNVFunction(env_spec=env.spec, hidden_layer_sizes=(M, M))
initial_exploration_policy = UniformPolicy(env_spec=env.spec)
policy = GaussianPtrPolicy(
env_spec=env.spec,
hidden_layer_sizes=(M, M),
reparameterize=True,
reg=1e-3,
)
algorithm = SAC(
base_kwargs=base_kwargs,
env=env,
g=goal_size,
policy=policy,
sub_level_policies_paths=sub_level_policies_paths,
initial_exploration_policy=initial_exploration_policy,
pool=pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=3e-4,
scale_reward=5,
discount=0.99,
tau=0.005,
reparameterize=True,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
)
algorithm._sess.run(tf.global_variables_initializer())
algorithm.train()
def __init__(
self,
environment_name,
algorithm_name,
lr,
scale_reward,
scale_entropy,
discount,
tau,
max_replay_buffer_size,
sampler_params,
value_func_layers_number,
value_func_layer_size,
policy_func_layers_number,
policy_func_layer_size,
base_ac_alg_params,
q_param_list,
use_ucb=False,
evaluation_strategy='ensemble',
):
"""
CG: the constructor.
:param environment_name: the name of the environment in string.
:param algorithm_name: the name of the AC algorithm to be used in the ensemble.
:param lr: the learning rate to be used in the ensemble.
:param scale_reward: the reward scaling factor.
:param scale_entropy: the entropy scaling factor.
:param discount: the reward discount factor.
:param tau: the target value function updating factor.
:param max_replay_buffer_size: the maximum size of the replay buffer.
:param sampler_params: extra parameter settings for the random sampler.
:param value_func_layers_number: the number of hidden layers for the value network, i.e. V function and Q function.
:param value_func_layer_size: the number of neurons of each hidden layer of the value network.
:param policy_func_layers_number: th number of hidden layers for the policy network.
:param policy_func_layer_size: the number of neurons of each hidden layer of the policy network.
:param base_ac_alg_params: base parameters for the AC algorithm.
:param q_param_list: the list of q values for the ensemble. Each q value in the list represents one AC instance in the ensemble.
:param use_ucb: an indicator regarding the use of ucb for selecting AC instances in the ensemble for exploration.
:param evaluation_strategy: the strategy used for evaluation. We have two strategies available, 'ensemble' and 'best-policy'.
"""
# Set up the environment.
self._environment_name = environment_name
self._env = GymEnv(self._environment_name)
# Set up the algorithm parameters.
self._algorithm_name = algorithm_name
self._lr = lr
self._scale_reward = scale_reward
self._scale_entropy = scale_entropy
self._discount = discount
self._tau = tau
self._use_ucb = use_ucb
self._evaluation_strategy = evaluation_strategy
# Set up the replay buffer.
self._max_replay_buffer_size = max_replay_buffer_size
self._pool = SimpleReplayBuffer(
env_spec=self._env.spec,
max_replay_buffer_size=self._max_replay_buffer_size)
# Set up the environment sampler.
self._sampler_params = sampler_params
self._sampler = SimpleSampler(**self._sampler_params)
# Set up the required number of AC instances in the ensemble. Each AC instance has its own value network and policy network.
self._alg_instances = []
self._base_ac_params = base_ac_alg_params
self._base_alg_params = dict(self._base_ac_params,
sampler=self._sampler)
for id, q_val in enumerate(q_param_list):
# Set up the value function network for an AC instance.
qf1 = NNQFunction(env_spec=self._env.spec,
hidden_layer_sizes=tuple([
value_func_layer_size
for _ in range(value_func_layers_number)
]),
name=str(id) + 'qf1')
qf2 = NNQFunction(env_spec=self._env.spec,
hidden_layer_sizes=tuple([
value_func_layer_size
for _ in range(value_func_layers_number)
]),
name=str(id) + 'qf2')
vf = NNVFunction(env_spec=self._env.spec,
hidden_layer_sizes=tuple([
value_func_layer_size
for _ in range(value_func_layers_number)
]),
name=str(id) + 'vf')
# Set up the policy network for an AC instance.
policy = GaussianPolicy(
env_spec=self._env.spec,
hidden_layer_sizes=tuple([
policy_func_layer_size
for _ in range(policy_func_layers_number)
]),
squash=True,
reparameterize=False,
reg=1.e-3,
name=str(id) + 'gaussian_policy')
initial_exploration_policy = policy
# Set up an AC instance.
if self._algorithm_name == 'sac':
algorithm = SACV1(
base_kwargs=self._base_alg_params,
env=self._env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=self._pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=self._lr,
scale_reward=self._scale_reward,
scale_entropy=self._scale_entropy,
discount=self._discount,
tau=self._tau,
reparameterize=False,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
)
elif self._algorithm_name == 'tac':
algorithm = TAC(
base_kwargs=self._base_alg_params,
env=self._env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=self._pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=self._lr,
scale_reward=self._scale_reward,
scale_entropy=self._scale_entropy,
discount=self._discount,
tau=self._tau,
reparameterize=False,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
tsallisQ=q_val,
)
elif self._algorithm_name == 'rac':
algorithm = RAC(
base_kwargs=self._base_alg_params,
env=self._env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=self._pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=self._lr,
scale_reward=self._scale_reward,
scale_entropy=self._scale_entropy,
discount=self._discount,
tau=self._tau,
reparameterize=False,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
renyiQ=q_val,
)
else:
raise NotImplementedError
# Initialize the AC instance.
# algorithm._sess.run(tf.global_variables_initializer())
# Put the initialized AC instance into the algorithm instance list.
# Each element of the algorithm instance list is made up of
# the algorithm instance,
# the moving average performance of the instance,
# the number of times the instance has been used for exploration previously, and
# the UCB bound.
self._alg_instances.append([algorithm, 0.0, 0.0, 0.0])
# Set up the ensemble Q-function for action selection.
self._Q_ensemble = NNQFunction(
env_spec=self._env.spec,
hidden_layer_sizes=tuple([
value_func_layer_size for _ in range(value_func_layers_number)
]),
name='ensqf')
# ========================================================================
# Set up the training target for the ensemble Q-function for action selection.
# ========================================================================
# Create the observation placeholder.
self._observations_ens_ph = tf.placeholder(
tf.float32,
shape=(None, self._env.spec.observation_space.flat_dim),
name='obv_ens',
)
# Create the next observation placeholder.
self._observations_ens_next_ph = tf.placeholder(
tf.float32,
shape=(None, self._env.spec.observation_space.flat_dim),
name='next_obv_ens',
)
# Create a list of next action placeholders.
self._acts_next_phs = []
for i in range(len(q_param_list)):
act_ens_ph = tf.placeholder(
tf.float32,
shape=(None, self._env.spec.action_space.flat_dim),
name=str(i) + '_next_act_ens',
)
self._acts_next_phs.append(act_ens_ph)
# Create the observed action placeholder.
self._obv_act_ph = tf.placeholder(
tf.float32,
shape=(None, self._env.spec.action_space.flat_dim),
name='act_obv_ens',
)
# Create the reward placeholder.
self._rewards_ph = tf.placeholder(
tf.float32,
shape=(None, ),
name='rew_ens',
)
# Create the terminal placeholder.
self._terminals_ph = tf.placeholder(
tf.float32,
shape=(None, ),
name='ter_ens',
)
# Determine the target Q-value for next step.
self._q_ens_targets = []
for act_next_ph in self._acts_next_phs:
qt = self._Q_ensemble.get_output_for(
self._observations_ens_next_ph, act_next_ph, reuse=True)
self._q_ens_targets.append(qt)
for i, q_t in enumerate(self._q_ens_targets):
if i == 0:
self._q_ens_next = q_t
else:
self._q_ens_next = tf.maximum(self._q_ens_next, q_t)
# self._q_ens_next = self._q_ens_next + q_t
# self._q_ens_next = self._q_ens_next / len(self._q_ens_targets)
# Determine the Q-loss.
self._q_train = self._Q_ensemble.get_output_for(
self._observations_ens_ph, self._obv_act_ph, reuse=True)
self._q_ens_loss = 0.5 * tf.reduce_mean(
(self._q_train -
tf.stop_gradient(self._scale_reward * self._rewards_ph +
(1 - self._terminals_ph) * self._discount *
self._q_ens_next))**2)
# Determine the Q-training operator.
self._q_ens_train_operator = tf.train.AdamOptimizer(self._lr).minimize(
loss=self._q_ens_loss,
var_list=self._Q_ensemble.get_params_internal())
# Set up the tensor flow session.
self._sess = tf_utils.get_default_session()
self._sess.run(tf.global_variables_initializer())
def run(variant):
env = normalize(
MultiGoalEnv(
actuation_cost_coeff=1,
distance_cost_coeff=0.1,
goal_reward=1,
init_sigma=0.1,
))
pool = SimpleReplayBuffer(max_replay_buffer_size=1e6, env_spec=env.spec)
sampler = SimpleSampler(max_path_length=30,
min_pool_size=100,
batch_size=64)
base_kwargs = dict(sampler=sampler,
epoch_length=1000,
n_epochs=1000,
n_train_repeat=1,
eval_render=True,
eval_n_episodes=10,
eval_deterministic=False)
M = 128
qf = NNQFunction(env_spec=env.spec, hidden_layer_sizes=[M, M])
vf = NNVFunction(env_spec=env.spec, hidden_layer_sizes=[M, M])
if variant['policy_type'] == 'gmm':
policy = GMMPolicy(env_spec=env.spec,
K=4,
hidden_layer_sizes=[M, M],
qf=qf,
reg=0.001)
elif variant['policy_type'] == 'lsp':
bijector_config = {
"scale_regularization": 0.0,
"num_coupling_layers": 2,
"translation_hidden_sizes": (M, ),
"scale_hidden_sizes": (M, ),
}
policy = LatentSpacePolicy(env_spec=env.spec,
mode="train",
squash=True,
bijector_config=bijector_config,
observations_preprocessor=None)
plotter = QFPolicyPlotter(qf=qf,
policy=policy,
obs_lst=np.array([[-2.5, 0.0], [0.0, 0.0],
[2.5, 2.5]]),
default_action=[np.nan, np.nan],
n_samples=100)
algorithm = SAC(base_kwargs=base_kwargs,
env=env,
policy=policy,
pool=pool,
qf=qf,
vf=vf,
plotter=plotter,
lr=3e-4,
scale_reward=3.0,
discount=0.99,
tau=1e-4,
save_full_state=True)
algorithm.train()
def __init__(
self,
environment_name,
algorithm_name,
lr,
scale_reward,
scale_entropy,
discount,
tau,
max_replay_buffer_size,
sampler_params,
value_func_layers_number,
value_func_layer_size,
policy_func_layers_number,
policy_func_layer_size,
base_ac_alg_params,
q_param_list,
use_ucb=False,
evaluation_strategy='ensemble',
):
"""
CG: the constructor.
:param environment_name: the name of the environment in string.
:param algorithm_name: the name of the AC algorithm to be used in the ensemble.
:param lr: the learning rate to be used in the ensemble.
:param scale_reward: the reward scaling factor.
:param scale_entropy: the entropy scaling factor.
:param discount: the reward discount factor.
:param tau: the target value function updating factor.
:param max_replay_buffer_size: the maximum size of the replay buffer.
:param sampler_params: extra parameter settings for the random sampler.
:param value_func_layers_number: the number of hidden layers for the value network, i.e. V function and Q function.
:param value_func_layer_size: the number of neurons of each hidden layer of the value network.
:param policy_func_layers_number: th number of hidden layers for the policy network.
:param policy_func_layer_size: the number of neurons of each hidden layer of the policy network.
:param base_ac_alg_params: base parameters for the AC algorithm.
:param q_param_list: the list of q values for the ensemble. Each q value in the list represents one AC instance in the ensemble.
:param use_ucb: an indicator regarding the use of ucb for selecting AC instances in the ensemble for exploration.
:param evaluation_strategy: the strategy used for evaluation. We have two strategies available, 'ensemble' and 'best-policy'.
"""
# Set up the environment.
self._environment_name = environment_name
self._env = GymEnv(self._environment_name)
# Set up the algorithm parameters.
self._algorithm_name = algorithm_name
self._lr = lr
self._scale_reward = scale_reward
self._scale_entropy = scale_entropy
self._discount = discount
self._tau = tau
self._use_ucb = use_ucb
self._evaluation_strategy = evaluation_strategy
# Set up the replay buffer.
self._max_replay_buffer_size = max_replay_buffer_size
self._pool = SimpleReplayBuffer(
env_spec=self._env.spec,
max_replay_buffer_size=self._max_replay_buffer_size)
# Set up the environment sampler.
self._sampler_params = sampler_params
self._sampler = SimpleSampler(**self._sampler_params)
# Set up the required number of AC instances in the ensemble. Each AC instance has its own value network and policy network.
self._alg_instances = []
self._base_ac_params = base_ac_alg_params
self._base_alg_params = dict(self._base_ac_params,
sampler=self._sampler)
for id, q_val in enumerate(q_param_list):
# Set up the value function network for an AC instance.
qf1 = NNQFunction(env_spec=self._env.spec,
hidden_layer_sizes=tuple([
value_func_layer_size
for _ in range(value_func_layers_number)
]),
name=str(id) + 'qf1')
qf2 = NNQFunction(env_spec=self._env.spec,
hidden_layer_sizes=tuple([
value_func_layer_size
for _ in range(value_func_layers_number)
]),
name=str(id) + 'qf2')
vf = NNVFunction(env_spec=self._env.spec,
hidden_layer_sizes=tuple([
value_func_layer_size
for _ in range(value_func_layers_number)
]),
name=str(id) + 'vf')
# Set up the policy network for an AC instance.
policy = GaussianPolicy(
env_spec=self._env.spec,
hidden_layer_sizes=tuple([
policy_func_layer_size
for _ in range(policy_func_layers_number)
]),
squash=True,
reparameterize=False,
reg=1.e-3,
name=str(id) + 'gaussian_policy')
initial_exploration_policy = policy
# Set up an AC instance.
if self._algorithm_name == 'sac':
algorithm = SACV1(
base_kwargs=self._base_alg_params,
env=self._env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=self._pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=self._lr,
scale_reward=self._scale_reward,
scale_entropy=self._scale_entropy,
discount=self._discount,
tau=self._tau,
reparameterize=False,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
)
elif self._algorithm_name == 'tac':
algorithm = TAC(
base_kwargs=self._base_alg_params,
env=self._env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=self._pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=self._lr,
scale_reward=self._scale_reward,
scale_entropy=self._scale_entropy,
discount=self._discount,
tau=self._tau,
reparameterize=False,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
tsallisQ=q_val,
)
elif self._algorithm_name == 'rac':
algorithm = RAC(
base_kwargs=self._base_alg_params,
env=self._env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=self._pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=self._lr,
scale_reward=self._scale_reward,
scale_entropy=self._scale_entropy,
discount=self._discount,
tau=self._tau,
reparameterize=False,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
renyiQ=q_val,
)
else:
raise NotImplementedError
# Initialize the AC instance.
algorithm._sess.run(tf.global_variables_initializer())
# Put the initialized AC instance into the algorithm instance list.
# Each element of the algorithm instance list is made up of
# the algorithm instance,
# the moving average performance of the instance,
# the number of times the instance has been used for exploration previously, and
# the UCB bound.
self._alg_instances.append([algorithm, 0.0, 0.0, 0.0])
def run_experiment(variant):
domain = None
goal_size = None
sub_level_policies_paths = []
if args.domain == 'ant-cross-maze':
domain = CrossMazeAntEnv
goal_size = 2
sub_level_policies_paths.append("primitive-policies/ant/fwrd/fwrd.pkl")
sub_level_policies_paths.append("primitive-policies/ant/bwrd/bwrd.pkl")
sub_level_policies_paths.append("primitive-policies/ant/uwrd/uwrd.pkl")
sub_level_policies_paths.append("primitive-policies/ant/dwrd/dwrd.pkl")
elif args.domain == 'ant-random-goal':
domain = RandomGoalAntEnv
goal_size = 2
sub_level_policies_paths.append("primitive-policies/ant/fwrd/fwrd.pkl")
sub_level_policies_paths.append("primitive-policies/ant/bwrd/bwrd.pkl")
sub_level_policies_paths.append("primitive-policies/ant/uwrd/uwrd.pkl")
sub_level_policies_paths.append("primitive-policies/ant/dwrd/dwrd.pkl")
elif args.domain == 'cheetah-hurdle':
domain = HalfCheetahHurdleEnv
goal_size = 2
sub_level_policies_paths.append("primitive-policies/hc/fwd/fwd.pkl")
sub_level_policies_paths.append(
"primitive-policies/hc/jp-longz/jump.pkl")
elif args.domain == 'pusher':
domain = PusherEnv
goal_size = 0
sub_level_policies_paths.append(
"primitive-policies/pusher/bottom/bottom.pkl")
sub_level_policies_paths.append(
"primitive-policies/pusher/left/left.pkl")
env = normalize(domain()) #CrossMazeAntEnv())
pool = SimpleReplayBuffer(
env_spec=env.spec,
max_replay_buffer_size=1e6,
seq_len=len(sub_level_policies_paths),
)
sampler = SimpleSampler(max_path_length=1000,
min_pool_size=1000,
batch_size=256)
base_kwargs = dict(epoch_length=1000,
n_epochs=5e3,
n_train_repeat=1,
eval_render=False,
eval_n_episodes=1,
eval_deterministic=True,
sampler=sampler)
M = 128
qf1 = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M), name='qf1')
qf2 = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M), name='qf2')
vf = NNVFunction(env_spec=env.spec, hidden_layer_sizes=(M, M))
initial_exploration_policy = UniformPolicy(env_spec=env.spec)
policy = GaussianPtrPolicy(
env_spec=env.spec,
hidden_layer_sizes=(M, M),
reparameterize=True,
reg=1e-3,
)
algorithm = SAC(
base_kwargs=base_kwargs,
env=env,
g=goal_size,
policy=policy,
sub_level_policies_paths=sub_level_policies_paths,
initial_exploration_policy=initial_exploration_policy,
pool=pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=3e-4,
scale_reward=5,
discount=0.99,
tau=0.005,
reparameterize=True,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
)
algorithm._sess.run(tf.global_variables_initializer())
algorithm.train()
def main(env_id, seed, entropy_coeff, n_epochs, dynamic_coeff, clip_norm,
normalize_obs, buffer_size, max_path_length, min_pool_size,
batch_size, policy_mode, eval_model, e, stochastic):
tf.set_random_seed(seed=seed)
env = GymEnv(env_id)
env.min_action = env.action_space.low[0]
env.max_action = env.action_space.high[0]
if hasattr(env, "seed"):
env.seed(seed)
else:
env.env.seed(seed)
# define value function
layer_size = 100
qf = NNQFunction(env_spec=env.spec,
hidden_layer_sizes=(layer_size, layer_size))
vf = NNVFunction(env_spec=env.spec,
hidden_layer_sizes=(layer_size, layer_size))
print("here")
# use GMM policy
if policy_mode == "GMMPolicy":
# use GMM policy
policy = GMMPolicy(env_spec=env.spec,
K=4,
hidden_layer_sizes=[layer_size, layer_size],
qf=qf,
reg=1e-3,
squash=True)
elif policy_mode == "EExploitationPolicy":
policy = EExploitationPolicy(
env_spec=env.spec,
K=4,
hidden_layer_sizes=[layer_size, layer_size],
qf=qf,
reg=1e-3,
squash=True,
e=e)
else:
_, mode = str(policy_mode).split('-')
if _ != "Knack":
raise AssertionError(
"policy_mode should be GMMPolicy or Knack-p_control or Knack-exploitation or Knack-exploration"
)
else:
policy = KnackBasedPolicy(
a_lim_lows=env.action_space.low,
a_lim_highs=env.action_space.high,
mode=mode,
env_spec=env.spec,
K=4,
hidden_layer_sizes=[layer_size, layer_size],
qf=qf,
vf=vf,
reg=1e-3,
squash=True)
# TODO
base_kwargs = dict(
epoch_length=1000,
n_epochs=n_epochs,
# scale_reward=1,
n_train_repeat=1,
eval_render=False,
eval_n_episodes=20,
eval_deterministic=True,
)
max_replay_buffer_size = buffer_size
pool = SimpleReplayBuffer(env_spec=env.spec,
max_replay_buffer_size=max_replay_buffer_size)
sampler_params = {
'max_path_length': max_path_length,
'min_pool_size': min_pool_size,
'batch_size': batch_size
}
sampler = NormalizeSampler(
**sampler_params) if normalize_obs else SimpleSampler(**sampler_params)
base_kwargs = dict(base_kwargs, sampler=sampler)
algorithm = SAC(base_kwargs=base_kwargs,
env=env,
policy=policy,
pool=pool,
qf=qf,
vf=vf,
lr=3e-4,
scale_reward=1.,
discount=0.99,
tau=1e-2,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
dynamic_coeff=dynamic_coeff,
entropy_coeff=entropy_coeff,
clip_norm=clip_norm)
algorithm._sess.run(tf.global_variables_initializer())
# -------------- setting done ------------------------
# -------------- main process ------------------------
with algorithm._sess.as_default():
algorithm._saver.restore(algorithm._sess, eval_model)
if stochastic:
knack_file = os.path.join(os.path.dirname(eval_model),
"array/epoch0_2001.npz")
final_knacks = np.load(knack_file)['knack_kurtosis'][-1]
env = algorithm._env
if hasattr(env, "env"):
env = env.env
# np.random.seed(seed)
# env.seed(seed)
num_data = 50 # num_data * nprocess == 1500
steps_thresh = 1000
data = {'acs': [], 'ep_rets': [], 'obs': [], 'rews': []}
for i in range(num_data):
obs = env.reset()
done = False
steps = 0
ret = 0
tmp_data = {'acs': [], 'obs': [], 'rews': []}
if stochastic:
_min = np.min(final_knacks)
_max = np.max(final_knacks)
print("start episode {}".format(i))
while not done:
steps += 1
# env.render()
if stochastic:
if hasattr(algorithm.pi, "knack_thresh"):
v, mean, var, kurtosis = algorithm._policy.calc_and_update_knack(
[obs])
knack_value = kurtosis[0]
# _min = min(knack_value, _min)
# _max = max(knack_value, _max)
knack_value = (knack_value - _min) / (_max - _min)
if knack_value > 0.8: ## TODO hyper param
print("knack {}".format(knack_value))
was = algorithm._policy._is_deterministic
algorithm._policy._is_deterministic = True
action, _ = algorithm.policy.get_action(
obs.flatten())
algorithm._policy._is_deterministic = was
else:
action, _ = algorithm.policy.get_action(
obs.flatten())
else:
algorithm._policy._is_deterministic = False
action, _ = algorithm.policy.get_action(obs.flatten())
else:
if hasattr(algorithm._policy, "_is_deterministic"):
algorithm._policy._is_deterministic = True
action, _ = algorithm.policy.get_action(obs.flatten())
obs_next, rew, done, _ = env.step(action)
tmp_data['obs'].append(obs)
tmp_data['acs'].append(action)
tmp_data['rews'].append(rew)
ret += rew
obs = obs_next
if steps >= steps_thresh:
done = True
data['ep_rets'].append(ret)
for k, v in tmp_data.items():
data[k].append(v)
# np.savez_compressed("a.npz", **data)
# print("return mean: {}".format(np.mean(data['ep_rets'])))
return data
def run_experiment(variant):
low_level_policy = load_low_level_policy(
policy_path=variant['low_level_policy_path'])
env_name = variant['env_name']
env_type = env_name.split('-')[-1]
env_args = {
name.replace('env_', '', 1): value
for name, value in variant.items()
if name.startswith('env_') and name != 'env_name'
}
if 'random-goal' in env_name:
EnvClass = RANDOM_GOAL_ENVS[env_type]
elif 'rllab' in variant['env_name']:
EnvClass = RLLAB_ENVS[variant['env_name']]
else:
raise NotImplementedError
base_env = normalize(EnvClass(**env_args))
env = HierarchyProxyEnv(wrapped_env=base_env,
low_level_policy=low_level_policy)
pool = SimpleReplayBuffer(
env_spec=env.spec,
max_replay_buffer_size=variant['max_pool_size'],
)
sampler = SimpleSampler(max_path_length=variant['max_path_length'],
min_pool_size=variant['max_path_length'],
batch_size=variant['batch_size'])
base_kwargs = dict(epoch_length=variant['epoch_length'],
n_epochs=variant['n_epochs'],
n_train_repeat=variant['n_train_repeat'],
eval_render=False,
eval_n_episodes=1,
eval_deterministic=True,
sampler=sampler)
M = variant['layer_size']
qf = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M))
vf = NNVFunction(env_spec=env.spec, hidden_layer_sizes=(M, M))
preprocessing_hidden_sizes = variant.get('preprocessing_hidden_sizes')
observations_preprocessor = (
MLPPreprocessor(env_spec=env.spec,
layer_sizes=preprocessing_hidden_sizes,
name='high_level_observations_preprocessor')
if preprocessing_hidden_sizes is not None else None)
policy_s_t_layers = variant['policy_s_t_layers']
policy_s_t_units = variant['policy_s_t_units']
s_t_hidden_sizes = [policy_s_t_units] * policy_s_t_layers
bijector_config = {
"scale_regularization": 0.0,
"num_coupling_layers": variant['policy_coupling_layers'],
"translation_hidden_sizes": s_t_hidden_sizes,
"scale_hidden_sizes": s_t_hidden_sizes,
}
policy = LatentSpacePolicy(
env_spec=env.spec,
mode="train",
squash=False,
bijector_config=bijector_config,
q_function=qf,
fix_h_on_reset=variant.get('policy_fix_h_on_reset', False),
observations_preprocessor=observations_preprocessor,
name="high_level_policy")
algorithm = SAC(
base_kwargs=base_kwargs,
env=env,
policy=policy,
pool=pool,
qf=qf,
vf=vf,
lr=variant['lr'],
scale_reward=variant['scale_reward'],
discount=variant['discount'],
tau=variant['tau'],
target_update_interval=variant['target_update_interval'],
action_prior=variant['action_prior'],
save_full_state=False,
)
algorithm.train()
def run_experiment(env, seed, scale_reward,
scale_entropy, tsallisQ, num_of_train):
tf.set_random_seed(seed)
environmentName = env
# environmentName = "LunarLanderContinuous-v2"
print("Experiment: {}".format(environmentName))
# Set up the PyBullet environment.
# env = normalize(gym.make(environmentName))
env = GymEnv(environmentName)
# Set up the replay buffer.
pool = SimpleReplayBuffer(env_spec = env.spec, max_replay_buffer_size = 1000000)
# Set up the sampler.
sampler_params = {
'max_path_length': 1000,
'min_pool_size': 1000,
'batch_size': 256,
}
sampler = SimpleSampler(**sampler_params)
# Set up the value function networks.
M = 128
qf1 = NNQFunction(env_spec = env.spec, hidden_layer_sizes = (M, M), name = 'qf1')
qf2 = NNQFunction(env_spec = env.spec, hidden_layer_sizes = (M, M), name = 'qf2')
vf = NNVFunction(env_spec = env.spec, hidden_layer_sizes = (M, M))
# Set up the policy network.
# initial_exploration_policy = UniformPolicy(env_spec=env.spec)
policy = GaussianPolicy(
env_spec = env.spec,
hidden_layer_sizes = (M, M),
reparameterize = False,
reg = 1e-3,
)
# policy = GMMPolicy(
# env_spec=env.spec,
# K=1,
# hidden_layer_sizes=(M, M),
# reparameterize=False,
# qf=qf1,
# reg=1.0e-3,
# )
initial_exploration_policy = policy
base_kwargs = {
'epoch_length': 1000,
'n_train_repeat': num_of_train,
'n_initial_exploration_steps': 1000,
'eval_render': False,
'eval_n_episodes': 3,
'eval_deterministic': True,
}
base_kwargs = dict(base_kwargs, sampler = sampler)
# Define a function for reward scaling.
def incrementor(itr):
return (0.5 + (0.8 - 0.5) * tf.minimum(itr / 500000., 1.0))
def decrementor(itr):
return (0.8 - (0.8 - 0.6) * tf.minimum(itr / 500000., 1.0))
algorithm = TAC(
base_kwargs = base_kwargs,
env = env,
policy = policy,
initial_exploration_policy = initial_exploration_policy,
pool = pool,
qf1 = qf1,
qf2 = qf2,
vf = vf,
lr = 3.0e-4,
scale_reward = scale_reward, # CG: default 1.0, 0.5 for the lunar lander problem, 3.0 for the pendulum problem.
scale_entropy = scale_entropy, # CG: default 1.0, 0.8 for the lunar lander problem.
discount = 0.99,
tau = 0.01,
reparameterize = False,
target_update_interval = 1,
action_prior = 'uniform',
save_full_state = False,
tsallisQ = tsallisQ,
)
algorithm._sess.run(tf.global_variables_initializer())
algorithm.train()
def run_experiment(variant):
env_params = variant['env_params']
policy_params = variant['policy_params']
value_fn_params = variant['value_fn_params']
algorithm_params = variant['algorithm_params']
replay_buffer_params = variant['replay_buffer_params']
sampler_params = variant['sampler_params']
task = variant['task']
domain = variant['domain']
constants.COST_TYPE = variant['algorithm_params']['cost_type']
register(
id='MECS-v1',
entry_point='sac.envs.environment_V_sweep:MEC_v1',
max_episode_steps=5000,
)
register(
id='MECS-v2',
entry_point='sac.envs.env_V_sweep_v2:MEC_v2',
max_episode_steps=5000,
)
register(
id='MECS-v3',
entry_point='sac.envs.env_V_sweep_v3:MEC_v3',
max_episode_steps=5000,
)
register(
id='MECS-v4',
entry_point='sac.envs.env_V_sweep_v4:MEC_v4',
max_episode_steps=5000,
)
register(
id='MECS-v5',
entry_point='sac.envs.env_V_sweep_v5:MEC_v5',
max_episode_steps=5000,
)
register(
id='MECS-v6',
entry_point='sac.envs.env_V_sweep_v6:MEC_v6',
max_episode_steps=5000,
)
register(
id='MECS-v61',
entry_point='sac.envs.env_V_sweep_v6_with_a:MEC_v6',
max_episode_steps=5000,
)
register(
id='MECS-v7',
entry_point='sac.envs.env_V_sweep_v7_new:MEC_v7',
max_episode_steps=5000,
)
register(
id='MECS-v8',
entry_point='sac.envs.env_V_sweep_v8_new:MEC_v8',
max_episode_steps=5000,
)
register(
id='MECS-v9',
entry_point='sac.envs.env_V_sweep_v9:MEC_v9',
max_episode_steps=5000,
)
register(
id='MECS-v10',
entry_point='sac.envs.env_V_sweep_v10:MEC_v10',
max_episode_steps=5000,
)
register(
id='MECS-v11',
entry_point='sac.envs.env_V_sweep_v11:MEC_v11',
max_episode_steps=5000,
)
register(
id='MECS-v12',
entry_point='sac.envs.env_V_sweep_v12:MEC_v12',
max_episode_steps=5000,
)
register(
id='MECS-v13',
entry_point='sac.envs.env_V_sweep_v13:MEC_v13',
max_episode_steps=5000,
)
register(
id='MECS-v14',
entry_point='sac.envs.env_V_sweep_v14:MEC_v14',
max_episode_steps=5000,
)
register(
id='MECS-v15',
entry_point='sac.envs.env_V_sweep_v15:MEC_v15',
max_episode_steps=5000,
)
register(
id='MECS-v16',
entry_point='sac.envs.env_V_sweep_v16:MEC_v16',
max_episode_steps=5000,
)
register(
id='MECS-v17',
entry_point='sac.envs.env_V_sweep_v17:MEC_v17',
max_episode_steps=5000,
)
register(
id='MECS-v18',
entry_point='sac.envs.env_V_sweep_v18:MEC_v18',
max_episode_steps=5000,
)
register(
id='MECS-v19',
entry_point='sac.envs.env_V_sweep_v19:MEC_v19',
max_episode_steps=5000,
)
register(
id='MECS-v20',
entry_point='sac.envs.env_V_sweep_v20:MEC_v20',
max_episode_steps=5000,
)
register(
id='MECS-v21',
entry_point='sac.envs.env_V_sweep_v21:MEC_v21',
max_episode_steps=5000,
)
register(
id='MECS-v22',
entry_point='sac.envs.env_V_sweep_v22:MEC_v22',
max_episode_steps=5000,
)
register(
id='MECS-v23',
entry_point='sac.envs.env_V_sweep_v23:MEC_v23',
max_episode_steps=5000,
)
register(
id='MECS-v24',
entry_point='sac.envs.env_V_sweep_v24:MEC_v24',
max_episode_steps=5000,
)
register(
id='MECS-v25',
entry_point='sac.envs.env_V_sweep_v25:MEC_v25',
max_episode_steps=5000,
)
register(
id='MECS-v26',
entry_point='sac.envs.env_V_sweep_v26:MEC_v26',
max_episode_steps=5000,
)
register(
id='MECS-v27',
entry_point='sac.envs.env_V_sweep_v27:MEC_v27',
max_episode_steps=5000,
)
register(
id='MECS-v28',
entry_point='sac.envs.env_V_sweep_v28:MEC_v28',
max_episode_steps=5000,
)
register(
id='MECS-v29',
entry_point='sac.envs.env_V_sweep_v29:MEC_v29',
max_episode_steps=5000,
)
register(
id='MECS-v30',
entry_point='sac.envs.env_V_sweep_v30:MEC_v30',
max_episode_steps=5000,
)
env = normalize(ENVIRONMENTS[domain][task](**env_params))
pool = SimpleReplayBuffer(env_spec=env.spec, **replay_buffer_params)
sampler = SimpleSampler(**sampler_params)
base_kwargs = dict(algorithm_params['base_kwargs'], sampler=sampler)
M = value_fn_params['layer_size']
qf1 = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M), name='qf1')
qf2 = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(M, M), name='qf2')
vf = NNVFunction(env_spec=env.spec, hidden_layer_sizes=(M, M))
initial_exploration_policy = UniformPolicy(env_spec=env.spec)
if policy_params['type'] == 'gaussian':
policy = GaussianPolicy(
env_spec=env.spec,
hidden_layer_sizes=(M,M),
reparameterize=policy_params['reparameterize'],
reg=1e-3,
)
elif policy_params['type'] == 'lsp':
nonlinearity = {
None: None,
'relu': tf.nn.relu,
'tanh': tf.nn.tanh
}[policy_params['preprocessing_output_nonlinearity']]
preprocessing_hidden_sizes = policy_params.get('preprocessing_hidden_sizes')
if preprocessing_hidden_sizes is not None:
observations_preprocessor = MLPPreprocessor(
env_spec=env.spec,
layer_sizes=preprocessing_hidden_sizes,
output_nonlinearity=nonlinearity)
else:
observations_preprocessor = None
policy_s_t_layers = policy_params['s_t_layers']
policy_s_t_units = policy_params['s_t_units']
s_t_hidden_sizes = [policy_s_t_units] * policy_s_t_layers
bijector_config = {
'num_coupling_layers': policy_params['coupling_layers'],
'translation_hidden_sizes': s_t_hidden_sizes,
'scale_hidden_sizes': s_t_hidden_sizes,
}
policy = LatentSpacePolicy(
env_spec=env.spec,
squash=policy_params['squash'],
bijector_config=bijector_config,
reparameterize=policy_params['reparameterize'],
q_function=qf1,
observations_preprocessor=observations_preprocessor)
elif policy_params['type'] == 'gmm':
# reparameterize should always be False if using a GMMPolicy
policy = GMMPolicy(
env_spec=env.spec,
K=policy_params['K'],
hidden_layer_sizes=(M, M),
reparameterize=policy_params['reparameterize'],
qf=qf1,
reg=1e-3,
)
else:
raise NotImplementedError(policy_params['type'])
algorithm = SAC(
base_kwargs=base_kwargs,
env=env,
policy=policy,
initial_exploration_policy=initial_exploration_policy,
pool=pool,
qf1=qf1,
qf2=qf2,
vf=vf,
lr=algorithm_params['lr'],
scale_reward=algorithm_params['scale']*algorithm_params['scale_reward'],
discount=algorithm_params['discount'],
tau=algorithm_params['tau'],
reparameterize=algorithm_params['reparameterize'],
target_update_interval=algorithm_params['target_update_interval'],
action_prior=policy_params['action_prior'],
save_full_state=False,
)
algorithm._sess.run(tf.global_variables_initializer())
algorithm.train()
def main(root_dir):
# tf.set_random_seed(seed=seed)
# env = GymEnv('MountainCarContinuous-v0')
env = GymEnv('MountainCarContinuousColor-v0')
max_replay_buffer_size = int(1e6)
sampler_params = {'max_path_length': 1000, 'min_pool_size': 1000, 'batch_size': 128}
# TODO Normalize or not
sampler = SimpleSampler(**sampler_params)
entropy_coeff = 0.
dynamic_coeff = True
# define value function
layer_size = 100
qf = NNQFunction(env_spec=env.spec, hidden_layer_sizes=(layer_size, layer_size))
vf = NNVFunction(env_spec=env.spec, hidden_layer_sizes=(layer_size, layer_size))
# use GMM policy
policy = GMMPolicy(
env_spec=env.spec,
K=4,
hidden_layer_sizes=[layer_size, layer_size],
qf=qf,
reg=1e-3,
squash=True
)
# TODO
base_kwargs = dict(
epoch_length=1000,
n_epochs=10,
# scale_reward=1,
n_train_repeat=1,
eval_render=False,
eval_n_episodes=20,
eval_deterministic=True,
)
pool = SimpleReplayBuffer(env_spec=env.spec, max_replay_buffer_size=max_replay_buffer_size)
base_kwargs = dict(base_kwargs, sampler=sampler)
algorithm = SAC(
base_kwargs=base_kwargs,
env=env,
policy=policy,
pool=pool,
qf=qf,
vf=vf,
lr=3e-4,
scale_reward=1.,
discount=0.99,
tau=1e-2,
target_update_interval=1,
action_prior='uniform',
save_full_state=False,
dynamic_coeff=dynamic_coeff,
entropy_coeff=entropy_coeff
)
algorithm._sess.run(tf.global_variables_initializer())
# TODO Normalize or not
# Currently only MountainCar is available
with algorithm._sess.as_default():
model_file = os.path.join(root_dir, 'model')
algorithm._saver.restore(algorithm._sess, model_file)
for i in range(1):
obs = env.reset()
env.env.render()
sleep(4.0)
traj = [obs]
done = False
while not done:
env.env.render()
action = algorithm.policy.get_action(obs.flatten())
obs, rew, done, _ = env.step(action)
traj.append(obs.flatten())
knack, knack_kurtosis = sub_goal_detect(algorithm, traj)
idxs = np.argsort(knack_kurtosis)
# idxs = np.argsort(knack)
print(idxs[::-1])
COL = MplColorHelper('Blues', np.min(knack_kurtosis), np.max(knack_kurtosis))
for j, s in enumerate(traj):
env.env.state = np.array(traj[j])
rgba = COL.get_rgb(knack_kurtosis[j])
env.env.render(car_rgba=rgba)
sleep(1.0)
for idx in idxs[::-1]:
obs = env.reset()
env.env.state = np.array(traj[0])
rgba = COL.get_rgb(knack_kurtosis[0])
env.env.render(car_rgba=rgba)
for j in range(idx+1):
env.env.state = np.array(traj[j])
rgba = COL.get_rgb(knack_kurtosis[j])
# env.env.viewer.geoms[1].set_color(*(0.0, 0.0, 1.0))
env.env.render(car_rgba=rgba)
sleep(0.5)
