def train(self):
self.start_worker()
self.init_opt()
# logz.configure_output_dir("/home/hendawy/Desktop/HumonoidwithTRPOandMappingtojointangles\Trial1",13000)
for itr in range(self.current_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
paths = self.sampler.obtain_samples(itr)
samples_data = self.sampler.process_samples(itr, paths)
self.log_diagnostics(paths)
optimization_data = self.optimize_policy(itr, samples_data)
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data)
self.current_itr = itr + 1
params["algo"] = self
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
opt_data = self.get_itr_snapshot(itr, samples_data)
values = opt_data["policy"].get_param_values()
print("Saving learned TF nn model parameters.")
f = open(
'/home/hendawy/Desktop/HumonoidwithTRPOandMappingtojointangles/Trial1/saver%i.save'
% itr, 'wb')
cPickle.dump(values, f, protocol=cPickle.HIGHEST_PROTOCOL)
f.close()
logger.log("saved")
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def train(self):
self.start_worker()
self.init_opt()
for itr in range(self.current_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
paths = self.obtain_samples(itr)
samples_data = self.process_samples(itr, paths)
# TOFIX(eugene) why is this here, and can I get rid of it?
self.log_diagnostics(paths)
self.optimize_policy(itr, samples_data)
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data)
self.current_itr = itr + 1
# FIXME(eugene) uncomment this line
#params["algo"] = self
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def train(self):
self.start_worker()
self.init_opt()
for itr in range(self.current_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
paths_n = self.obtain_samples(itr)
samples_data_n = self.process_samples(itr, paths_n)
self.log_diagnostics(paths_n)
# print('Average Return:', np.mean([sum(path["rewards"])for paths in paths_n for path in paths]))
self.optimize_agents_policies(itr, samples_data_n)
if itr and (itr % self.average_period == 0):
self.optimize_policy()
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr)
self.current_itr = itr + 1
params["algo"] = self
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
if (self.n_itr - 1) % self.average_period != 0:
self.optimize_policy()
logger.log("saving snapshot...")
params = self.get_itr_snapshot(self.n_itr - 1)
params["algo"] = self
logger.save_itr_params(self.n_itr - 1, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
self.shutdown_worker()
return np.mean(
[sum(path["rewards"]) for paths in paths_n for path in paths])
def custom_train(algo, sess=None):
created_session = True if (sess is None) else False
if sess is None:
sess = tf.Session()
sess.__enter__()
rollout_cache = []
initialize_uninitialized(sess)
algo.start_worker()
start_time = time.time()
for itr in range(algo.start_itr, algo.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
paths = algo.obtain_samples(itr)
logger.log("Processing samples...")
samples_data = algo.process_samples(itr, paths)
logger.log("Logging diagnostics...")
algo.log_diagnostics(paths)
logger.log("Optimizing policy...")
algo.optimize_policy(itr, samples_data)
logger.log("Saving snapshot...")
params = algo.get_itr_snapshot(itr, samples_data) # , **kwargs)
if algo.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
algo.shutdown_worker()
if created_session:
sess.close()
def log_diagnostics(self, itr):
self.pbar.stop()
self.save_itr_snapshot(itr)
logger.record_tabular('Iteration', itr)
logger.record_tabular('CumCompletedTrajs', self._cum_completed_trajs)
logger.record_tabular('CumCompletedSteps', self._cum_completed_steps)
logger.record_tabular('CumTotalSteps', (itr + 1) * self._sample_size)
logger.record_tabular('NewCompletedTrajs', self._new_completed_trajs)
logger.record_tabular('StepsInTrajWindow',
sum(info["Length"] for info in self._traj_infos))
if self._log_entropy:
logger.record_tabular('Entropy', self._entropy_ema)
logger.record_tabular('Perplexity', self._perplexity_ema)
self._log_infos()
new_time = time.time()
samples_per_second = \
(self._log_interval_itrs * self._sample_size) / (new_time - self._last_time)
logger.record_tabular('CumTime (s)', new_time - self._start_time)
logger.record_tabular('SamplesPerSecond', samples_per_second)
self._last_time = new_time
logger.dump_tabular(with_prefix=False)
self._new_completed_trajs = 0
if itr < self._n_itr - 1:
logger.log('optimizing over {} iterations'.format(
self._log_interval_itrs))
self.pbar = ProgBarCounter(self._log_interval_itrs)
def train(self):
self.start_worker()
for itr in range(self.current_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
logger.log('Obtaining samples...')
paths = self.sampler.obtain_samples(itr)
logger.log('Processing samples...')
samples_data = self.sampler.process_samples(itr, paths)
logger.log('Logging diagnostics...')
self.log_diagnostics(paths)
logger.log('Optimizing policy...')
self.optimize_policy(itr, samples_data)
logger.log('Saving snapshot...')
params = self.get_itr_snapshot(itr, samples_data)
self.current_itr = itr + 1
params['algo'] = self
# Save the trajectories into the param
if self.store_paths:
params['paths'] = samples_data['paths']
logger.save_itr_params(itr, params)
logger.log('Saved')
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input('Plotting evaluation run: Press Enter to '
'continue...')
self.shutdown_worker()
def train(self):
with tf.Session() as sess:
sess.run(tf.initialize_all_variables())
self.start_worker()
start_time = time.time()
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
paths = self.obtain_samples(itr)
logger.log("Processing samples...")
samples_data = self.process_samples(itr, paths)
logger.log("Logging diagnostics...")
self.log_diagnostics(paths)
logger.log("Optimizing policy...")
self.optimize_policy(itr, samples_data)
logger.log("Saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def train(self, already_init=False):
self.start_worker()
if not already_init:
self.init_opt()
all_paths = []
for itr in range(self.current_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
before_rollouts = time.time()
paths = self.sampler.obtain_samples(itr)
samples_data = self.sampler.process_samples(itr, paths)
after_rollouts = time.time()
print("rollout: ", after_rollouts - before_rollouts)
self.log_diagnostics(paths)
before_update = time.time()
self.optimize_policy(itr, samples_data)
after_update = time.time()
print("update: ", after_update - before_update)
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data)
self.current_itr = itr + 1
params["algo"] = self
if self.store_paths:
params["paths"] = samples_data["paths"]
all_paths.append(paths)
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
return all_paths
def train(self):
self.start_worker()
self.init_opt()
rets = []
for itr in range(self.start_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
paths = self.obtain_samples(itr)
print(("BatchPolopt:train len(paths)", len(paths)))
samples_data, total_returns_per_episode = self.process_samples(itr, paths)
rets.append(total_returns_per_episode)
self.log_diagnostics(paths)
self.optimize_policy(itr, samples_data)
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
eval(input("Plotting evaluation run: Press Enter to "
"continue..."))
self.shutdown_worker()
return rets
def train(self):
self.start_worker()
self.init_opt()
for itr in xrange(self.current_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
paths = self.sampler.obtain_samples(itr)
samples_data = self.sampler.process_samples(itr, paths)
if self.exp_name:
num_traj = len(samples_data["paths"])
final_eepts = np.concatenate([samples_data["paths"][traj]["observations"][-1,14:20][None,:]\
for traj in range(num_traj)], axis=0)
cPickle.dump( final_eepts, open( "/home/ajay/rllab/data/local/{0}/{1}/final_eepts_itr_{2}.pkl".format(\
self.exp_prefix, self.exp_name, itr), "w+" ) )
self.log_diagnostics(paths)
self.optimize_policy(itr, samples_data)
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data)
self.current_itr = itr + 1
params["algo"] = self
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
raw_input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def train(self, continue_learning=False):
self.start_worker()
if not continue_learning:
self.init_opt()
for itr in range(self.current_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
paths = self.sampler.obtain_samples(itr)
samples_data = self.sampler.process_samples(itr, paths)
self.log_diagnostics(paths)
self.optimize_policy(itr, samples_data)
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data)
self.current_itr = itr + 1
params["algo"] = self
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def train(self):
with tf.Session() as sess:
sess.run(tf.global_variables_initializer())
start_time = time.time()
self.start_worker()
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
paths = self.sampler.obtain_samples(itr)
samples_data = self.sampler.process_samples(itr, paths)
self.log_diagnostics(paths)
self.optimize_policy(itr, samples_data)
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data)
#self.current_itr = itr + 1
#params["algo"] = self
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def train(self, sess=None):
if sess is None:
sess = tf.Session()
sess.__enter__()
#with tf.Session() as sess:
sess.run(tf.initialize_all_variables())
self.start_worker()
start_time = time.time()
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
paths = self.obtain_samples(itr)
logger.log("Processing samples...")
samples_data = self.process_samples(itr, paths)
logger.log("Logging diagnostics...")
self.log_diagnostics(paths)
logger.log("Optimizing policy...")
self.optimize_policy(itr, samples_data)
logger.log("Saving snapshot...")
params = self.get_itr_snapshot(itr,
samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def train(self, sess=None):
if sess is None:
sess = tf.Session()
sess.run(tf.global_variables_initializer())
replay_buffer = SimpleReplayBuffer(env_spec=self._env.spec, max_replay_buffer_size=self._max_pool_size)
path_length = 0
episode_rewards = 0
observation = self._env.reset()
with sess.as_default():
self._update_target()
for ep in range(self._n_epochs):
mean_loss = 0
trained_iter = 0
epoch_rewards = list()
episode_lengths = list()
with logger.prefix('Epoch #%d | ' % ep):
for ep_iter in pyprind.prog_bar(range(self._epoch_length)):
self._env.render()
action, _ = self._es.get_action(observation)
next_observation, reward, terminal, _ = self._env.step(action)
replay_buffer.add_sample(
observation=observation,
next_observation=next_observation,
action=action,
terminal=terminal,
reward=reward,
)
episode_rewards += reward
path_length += 1
observation = next_observation
if terminal or path_length >= self._max_path_length:
observation = self._env.reset()
epoch_rewards.append(episode_rewards)
episode_lengths.append(path_length)
path_length = 0
episode_rewards = 0
iter = ep * self._epoch_length + ep_iter
if replay_buffer.size > self._min_pool_size:
batch = replay_buffer.random_batch(self._batch_size)
loss = self._do_training(iter, batch)
mean_loss += loss
trained_iter += 1
if iter % self._target_update_period == 0 and replay_buffer.size > self._min_pool_size:
self._update_target()
logger.record_tabular('mean-td-error', (mean_loss/self._epoch_length))
logger.record_tabular('mean-episode-reward', np.mean(epoch_rewards))
logger.record_tabular('mean-epsiode-length', np.mean(episode_lengths))
logger.dump_tabular()
def train(self):
self.start_worker()
self.init_opt()
for itr in range(self.current_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
average_return_list = []
for i in range(self.num_of_agents):
paths = self.sampler_list[i].obtain_samples(itr)
samples_data, average_return = self.sampler_list[
i].process_samples(itr, paths)
average_return_list.append(average_return)
# self.log_diagnostics(paths)
self.optimize_policy(itr, samples_data, i)
logger.record_tabular('AverageReturn',
np.max(average_return_list))
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr)
self.current_itr = itr + 1
params["algo"] = self
if self.store_paths:
pass
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
self.shutdown_worker()
def train(self):
self.start_worker()
self.init_opt()
episode_rewards = []
episode_lengths = []
for itr in xrange(self.start_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
paths = self.obtain_samples(itr)
samples_data = self.process_samples(itr, paths)
self.log_diagnostics(paths)
self.optimize_policy(itr, samples_data)
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr,
samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
raw_input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def log_diagnostics(self, itr, eval_traj_infos, eval_time):
self.save_itr_snapshot(itr)
if not eval_traj_infos:
logger.log("ERROR: had no complete trajectories in eval.")
steps_in_eval = sum([info["Length"] for info in eval_traj_infos])
logger.record_tabular('Iteration', itr)
logger.record_tabular('CumCompletedSteps', itr * self._sample_size)
logger.record_tabular('StepsInEval', steps_in_eval)
logger.record_tabular('TrajsInEval', len(eval_traj_infos))
self._log_infos(eval_traj_infos)
new_time = time.time()
log_interval_time = new_time - self._last_time
new_train_time = log_interval_time - eval_time
self._cum_train_time += new_train_time
self._cum_eval_time += eval_time
self._cum_total_time += log_interval_time
self._last_time = new_time
train_speed = float('nan') if itr == 0 else \
self._log_interval_itrs * self._sample_size / new_train_time
logger.record_tabular('CumTrainTime', self._cum_train_time)
logger.record_tabular('CumEvalTime', self._cum_eval_time)
logger.record_tabular('CumTotalTime', self._cum_total_time)
logger.record_tabular('SamplesPerSecond', train_speed)
logger.dump_tabular(with_prefix=False)
logger.log('optimizing over {} iterations'.format(
self._log_interval_itrs))
self.pbar = ProgBarCounter(self._log_interval_itrs)
def train(self):
sess = tf.get_default_session()
sess.run(tf.global_variables_initializer())
if self.init_pol_params is not None:
self.policy.set_param_values(self.init_pol_params)
if self.init_qvar_params is not None:
self.qvar_model.set_params(self.init_qvar_params)
if self.init_irl_params is not None:
self.irl_model.set_params(self.init_irl_params)
if self.init_empw_params is not None:
self.empw.set_params(self.init_empw_params)
self.start_worker()
start_time = time.time()
returns = []
rew = [] # stores score at each step
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
paths = self.obtain_samples(itr)
logger.log("Processing samples...")
paths, r = self.compute_irl(paths, itr=itr)
rew.append(r)
returns.append(self.log_avg_returns(paths))
self.compute_qvar(paths, itr=itr)
self.compute_empw(paths, itr=itr)
samples_data = self.process_samples(itr, paths)
logger.log("Logging diagnostics...")
self.log_diagnostics(paths)
logger.log("Optimizing policy...")
self.optimize_policy(itr, samples_data)
logger.log("Saving snapshot...")
params = self.get_itr_snapshot(itr,
samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
if itr % self.target_empw_update == 0 and self.train_empw: #reward 5
print('updating target empowerment parameters')
self.tempw.set_params(self.__empw_params)
#pickle.dump(rew, open("rewards.p", "wb" )) # uncomment to store rewards in every iteration
self.shutdown_worker()
return
def train(self, sess=None):
sess = self.sess
created_session = True if (sess is None) else False
if sess is None:
sess = tf.Session()
sess.__enter__()
sess.run(tf.global_variables_initializer())
self.start_worker()
start_time = time.time()
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
logger.log("Collecting both agent and oracle samples...")
paths, agent_only_paths = self.obtain_samples(
itr, self.oracle_policy)
logger.log("Processing samples...")
samples_data = self.process_samples(itr, paths)
agent_samples_data = self.process_agent_samples(
itr, agent_only_paths)
logger.log("Logging diagnostics...")
self.log_diagnostics(paths)
self.log_diagnostics(agent_only_paths)
#### optimising the policy based on the collected samples
logger.log("Optimizing policy...")
self.optimize_agent_policy(itr, agent_samples_data)
self.optimize_policy(itr, samples_data)
logger.log("Saving snapshot...")
params = self.get_itr_snapshot(itr,
samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
if self.plot:
rollout(self.env,
self.policy,
animated=True,
max_path_length=self.max_path_length)
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to"
"continue...")
self.shutdown_worker()
if created_session:
sess.close()
def train(self):
self.start_worker()
self.init_opt()
for itr in range(self.current_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
paths = self.sampler.obtain_samples(itr)
samples_data = self.sampler.process_samples(itr, paths)
self.log_diagnostics(paths)
self.optimize_policy(itr, samples_data)
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data)
self.current_itr = itr + 1
params["algo"] = self
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def train(self):
self.start_worker()
for itr in range(self.current_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
# TODO: do we use a new rollout on expert data in each itr? for now we can do so but at some point we only have a fixed dataset
generated_paths = self.sampler.obtain_samples(itr)
generated_data = self.sampler.process_samples(
itr, generated_paths)
self.log_diagnostics(generated_paths)
self.optimize_policy(itr, generated_data)
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr, generated_data)
self.current_itr = itr + 1
params["algo"] = self
if self.store_paths:
params["paths"] = generated_data["paths"]
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
self.shutdown_worker()
def train(self):
self.start_worker()
self.init_opt()
for itr in range(self.current_itr, self.n_itr):
if self.anneal_temp and (
itr + 1
) % self.anneal_discount_epoch == 0 and itr >= self.anneal_temp_start:
if self.anneal_method == 'loglinear':
self.temp *= self.anneal_discount_factor
elif self.anneal_method == 'linear':
self.temp -= self.anneal_discount_factor
if self.temp < self.temp_min:
self.temp = self.temp_min
logger.log("Current Temperature {:}".format(self.temp))
with logger.prefix('itr #%d | ' % itr):
average_return_list = []
gradient_list = []
for i in range(self.num_of_agents):
paths = self.sampler_list[i].obtain_samples(itr)
samples_data, average_return = self.sampler_list[
i].process_samples(itr, paths)
average_return_list.append(average_return)
gradient = self.optimize_policy(itr, samples_data, i)
gradient_list.append(gradient)
logger.log("Update Policy {BEGIN}")
self.update_policies(gradient_list)
logger.log("Update Policy {END}")
logger.record_tabular('AverageReturn',
np.max(average_return_list))
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr)
self.current_itr = itr + 1
params["algo"] = self
if self.store_paths:
pass
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
if self.evolution and (itr + 1) % self.evolution_update_steps == 0:
logger.log(
">>>>>>>>>>>>>>>>>>>>>>> Evolution START <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"
)
num_of_update = int(self.evolution_ratio * self.num_of_agents)
sorted_id = np.argsort(average_return_list)
deleted_id = sorted_id[:num_of_update]
sampled_id = sorted_id[num_of_update:]
for i in range(len(deleted_id)):
current_id = np.random.choice(sampled_id, 1)
current_params = self.policy_list[
current_id].get_param_values()
current_epsilon = self.evolution_epsilon * (
np.random.random(current_params.shape) - 0.5)
self.policy_list[deleted_id[i]].set_param_values(
current_params + current_epsilon)
logger.log(
">>>>>>>>>>>>>>>>>>>>>>> Evolution FINISH <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<"
)
self.shutdown_worker()
def train(self, sess=None):
created_session = True if (sess is None) else False
if sess is None:
sess = tf.Session()
sess.__enter__()
if not self.transfer:
sess.run(tf.global_variables_initializer())
#initialize uninitialize variables
global_vars = tf.global_variables()
is_initialized = sess.run(
[tf.is_variable_initialized(var) for var in global_vars])
not_initialized_vars = [
v for (v, f) in zip(global_vars, is_initialized) if not f
]
# print([str(i.name) for i in not_initialized_vars]) # only for testing
if len(not_initialized_vars):
sess.run(tf.variables_initializer(not_initialized_vars))
self.start_worker()
start_time = time.time()
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
paths = self.obtain_samples(itr)
logger.log("Processing samples...")
samples_data = self.process_samples(itr, paths)
logger.log("Logging diagnostics...")
self.log_diagnostics(paths)
logger.log("Optimizing policy...")
self.optimize_policy(itr, samples_data)
logger.log("Saving snapshot...")
params = self.get_itr_snapshot(itr) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
if self.plot:
rollout(self.env,
self.policy,
animated=True,
max_path_length=self.max_path_length)
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
params = tf.trainable_variables()
params_val = sess.run(params)
for param, param_val in zip(params, params_val):
print(param.name + "value: ", param_val)
self.shutdown_worker()
if created_session:
sess.close()
def train_mf(self):
self.start_worker()
self.init_opt()
logz.configure_output_dir(
"/home/hendawy/Desktop/2DOF_Robotic_Arm_withSphereObstacle/Rr",
1807)
for itr in range(self.current_itr, self.n_itr):
with logger.prefix('itr #%d | ' % itr):
paths = self.sampler.obtain_samples(itr, Constrained=True)
samples_data, analysis_data = self.sampler.process_samples(
itr, paths)
self.log_diagnostics(paths)
optimization_data = self.optimize_policy(itr, samples_data)
logz.log_tabular('Iteration', analysis_data["Iteration"])
# In terms of true environment reward of your rolled out trajectory using the MPC controller
logz.log_tabular('AverageDiscountedReturn',
analysis_data["AverageDiscountedReturn"])
logz.log_tabular('AverageReturns',
analysis_data["AverageReturn"])
logz.log_tabular('violation_cost',
np.mean(samples_data["violation_cost"]))
logz.log_tabular(
'boundary_violation_cost',
np.mean(samples_data["boundary_violation_cost"]))
logz.log_tabular('success_rate', samples_data["success_rate"])
logz.log_tabular(
'successful_AverageReturn',
np.mean(samples_data["successful_AverageReturn"]))
logz.log_tabular('ExplainedVariance',
analysis_data["ExplainedVariance"])
logz.log_tabular('NumTrajs', analysis_data["NumTrajs"])
logz.log_tabular('Entropy', analysis_data["Entropy"])
logz.log_tabular('Perplexity', analysis_data["Perplexity"])
logz.log_tabular('StdReturn', analysis_data["StdReturn"])
logz.log_tabular('MaxReturn', analysis_data["MaxReturn"])
logz.log_tabular('MinReturn', analysis_data["MinReturn"])
logz.log_tabular('LossBefore', optimization_data["LossBefore"])
logz.log_tabular('LossAfter', optimization_data["LossAfter"])
logz.log_tabular('MeanKLBefore',
optimization_data["MeanKLBefore"])
logz.log_tabular('MeanKL', optimization_data["MeanKL"])
logz.log_tabular('dLoss', optimization_data["dLoss"])
logz.dump_tabular()
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data)
self.current_itr = itr + 1
params["algo"] = self
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def agent_train(
algo,
oracle_policy,
sess=None,
):
"""
This is necessary so that we don't wipe away already initialized policy params.
Ideally, we should pull request this in as an option to RLlab and remove it from here once done
"""
created_session = True if (sess is None) else False
if sess is None:
sess = tf.Session()
sess.__enter__()
rollout_cache = []
initialize_uninitialized(sess)
algo.start_worker()
start_time = time.time()
#every time step
for itr in range(algo.start_itr, algo.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
#use multiple rollouts/trajectories to obtain samples for TRPO
logger.log("Obtaining samples...")
## obtain samples - for both only agent and all samples (including oracle and agent)
paths, agent_only_paths = algo.obtain_samples(itr, oracle_policy)
logger.log("Processing samples...")
samples_data = algo.process_samples(itr, paths)
agent_samples_data = algo.process_agent_samples(
itr, agent_only_paths)
logger.log("Logging diagnostics...")
algo.log_diagnostics(paths)
logger.log("Optimizing policy...")
## optimising pi(s) with agent samples data only
algo.optimize_agent_policy(itr, agent_samples_data)
## optimising beta(s) with all samples
algo.optimize_policy(itr, samples_data)
logger.log("Saving snapshot...")
params = algo.get_itr_snapshot(itr, samples_data) # , **kwargs)
if algo.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
algo.shutdown_worker()
if created_session:
sess.close()
def train(self):
with tf.Session() as sess:
sess.run(tf.initialize_all_variables())
if self.qprop:
pool = SimpleReplayPool(
max_pool_size=self.replay_pool_size,
observation_dim=self.env.observation_space.flat_dim,
action_dim=self.env.action_space.flat_dim,
replacement_prob=self.replacement_prob,
)
self.start_worker()
self.init_opt()
# This initializes the optimizer parameters
sess.run(tf.initialize_all_variables())
start_time = time.time()
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
if self.qprop and not self.qprop_enable and \
itr >= self.qprop_min_itr:
logger.log(
"Restarting workers with batch size %d->%d..." %
(self.batch_size, self.qprop_batch_size))
self.shutdown_worker()
self.batch_size = self.qprop_batch_size
self.start_worker()
if self.qprop_use_qf_baseline:
self.baseline = self.qf_baseline
self.qprop_enable = True
logger.log("Obtaining samples...")
paths = self.obtain_samples(itr)
logger.log("Processing samples...")
samples_data = self.process_samples(itr, paths)
logger.log("Logging diagnostics...")
self.log_diagnostics(paths)
if self.qprop:
logger.log("Adding samples to replay pool...")
self.add_pool(itr, paths, pool)
logger.log("Optimizing critic before policy...")
self.optimize_critic(itr, pool)
logger.log("Optimizing policy...")
self.optimize_policy(itr, samples_data)
params = self.get_itr_snapshot(itr,
samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime',
time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def _train(self, env, policy, pool):
"""Perform RL training.
Args:
env (`rllab.Env`): Environment used for training
policy (`Policy`): Policy used for training
pool (`PoolBase`): Sample pool to add samples to
"""
self._init_training()
self.sampler.initialize(env, policy, pool)
evaluation_env = deep_clone(env) if self._eval_n_episodes else None
with tf_utils.get_default_session().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.push_prefix('Epoch #%d | ' % epoch)
for t in range(self._epoch_length):
self.sampler.sample()
if not self.sampler.batch_ready():
continue
gt.stamp('sample')
for i in range(self._n_train_repeat):
self._do_training(iteration=t +
epoch * self._epoch_length,
batch=self.sampler.random_batch())
gt.stamp('train')
self._evaluate(policy, evaluation_env)
gt.stamp('eval')
params = self.get_snapshot(epoch)
logger.save_itr_params(epoch, params)
time_itrs = gt.get_times().stamps.itrs
time_eval = time_itrs['eval'][-1]
time_total = gt.get_times().total
time_train = time_itrs.get('train', [0])[-1]
time_sample = time_itrs.get('sample', [0])[-1]
logger.record_tabular('time-train', time_train)
logger.record_tabular('time-eval', time_eval)
logger.record_tabular('time-sample', time_sample)
logger.record_tabular('time-total', time_total)
logger.record_tabular('epoch', epoch)
self.sampler.log_diagnostics()
logger.dump_tabular(with_prefix=False)
logger.pop_prefix()
self.sampler.terminate()
def train(self, sess=None):
created_session = True if (sess is None) else False
if sess is None:
sess = tf.Session()
sess.__enter__()
sess.run(tf.global_variables_initializer())
self.start_worker()
start_time = time.time()
AvgDisReturn = []
AvgReturn = []
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
paths = self.obtain_samples(itr)
#print(paths)
logger.log("Processing samples...")
samples_data = self.process_samples(itr, paths)
# for key in samples_data:
# print(key)
# print(samples_data["rewards"])
logger.log("Logging diagnostics...")
self.log_diagnostics(paths)
logger.log("Optimizing policy...")
self.optimize_policy(itr, samples_data)
logger.log("Saving snapshot...")
params = self.get_itr_snapshot(itr,
samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
AvgDisReturn.append(
float(dict(logger._tabular)["AverageDiscountedReturn"]))
AvgReturn.append(float(dict(logger._tabular)["AverageReturn"]))
# for key in dict(logger._tabular):
# print(key)
logger.dump_tabular(with_prefix=False)
if self.plot:
rollout(self.env,
self.policy,
animated=True,
max_path_length=self.max_path_length)
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
store("AvgDisReturn.dat", AvgDisReturn)
store("AvgReturn.dat", AvgReturn)
self.shutdown_worker()
if created_session:
sess.close()
def train(self, sess=None):
created_session = True if (sess is None) else False
if sess is None:
sess = tf.Session()
sess.__enter__()
global_step = tf.train.get_or_create_global_step()
global_step_inc = global_step.assign_add(1)
sess.run(tf.global_variables_initializer())
self.start_worker()
start_time = time.time()
total_timesteps = 0
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
with _MeasureTime('ObtainSamplesTime'):
paths = self.obtain_samples(itr)
logger.log("Processing samples...")
with _MeasureTime('ProcessPathsTime'):
self.process_paths(paths)
with _MeasureTime('ProcessSamplesTime'):
samples_data = self.process_samples(itr, paths)
timesteps = len(samples_data['observations'])
total_timesteps += timesteps
logger.log("Logging diagnostics...")
self.log_diagnostics(paths)
logger.log("Optimizing policy...")
with _MeasureTime('OptimizePolicyTime'):
self.optimize_policy(itr, samples_data)
logger.log("Saving snapshot...")
params = self.get_itr_snapshot(itr,
samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.record_tabular('Timesteps', timesteps)
logger.record_tabular('TotalTimesteps', total_timesteps)
logger.dump_tabular(with_prefix=False)
if self.plot:
rollout(self.env,
self.policy,
animated=True,
max_path_length=self.max_path_length)
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
sess.run(global_step_inc)
self.shutdown_worker()
if created_session:
sess.close()
def train(self, sess=None):
created_session = True if (sess is None) else False
if sess is None:
sess = tf.Session()
sess.__enter__()
sess.run(tf.global_variables_initializer())
self.start_worker()
start_time = time.time()
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
paths = self.obtain_samples(itr)
logger.log("Processing samples...")
samples_data = self.process_samples(itr, paths)
logger.log("Logging diagnostics...")
self.log_diagnostics(paths)
logger.log("Optimizing policy...")
self.optimize_policy(itr, samples_data, self._wandb_dict)
logger.log("Saving snapshot...")
params = self.get_itr_snapshot(itr,
samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
if self.plot:
rollout(self.env,
self.policy,
animated=True,
max_path_length=self.max_path_length)
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
if self._render:
fn = self._gif_header + str(itr) + '.gif'
# obtain gym.env from rllab.env
render_env(self.env.wrapped_env.env,
path=self._gif_dir,
filename=fn)
if self._log_wandb:
full_fn = os.path.join(os.getcwd(), self._gif_dir, fn)
wandb.log({
"video":
wandb.Video(full_fn, fps=60, format="gif")
})
if self._log_wandb:
wandb.log(self._wandb_dict)
self.shutdown_worker()
if created_session:
sess.close()
def _train(self, env, policy, pool):
"""Perform RL training.
Args:
env (`rllab.Env`): Environment used for training
policy (`Policy`): Policy used for training
pool (`PoolBase`): Sample pool to add samples to
"""
self._init_training(env, policy, pool)
self.sampler.initialize(env, policy, pool)
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.push_prefix('Epoch #%d | ' % epoch)
for t in range(self._epoch_length):
# TODO.codeconsolidation: Add control interval to sampler
self.sampler.sample()
if not self.sampler.batch_ready():
continue
gt.stamp('sample')
for i in range(self._n_train_repeat):
self._do_training(iteration=t +
epoch * self._epoch_length,
batch=self.sampler.random_batch())
gt.stamp('train')
self._evaluate(epoch)
params = self.get_snapshot(epoch)
logger.save_itr_params(epoch, params)
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(with_prefix=False)
logger.pop_prefix()
gt.stamp('eval')
self.sampler.terminate()
def train(self):
self.start_worker()
self.init_opt()
# added, store average returns and std returns
if self.plot_learning_curve:
avg_returns = []
std_returns = []
# added, make sure we add the first curriculum element
assert (self.current_itr == 0)
for itr in range(self.current_itr, self.n_itr):
# added, update curriculum if necessary
if isinstance(self.policy, CurriculumPolicy):
if itr % self.policy.update_freq == 0:
if len(self.curriculum_list) > 0:
self.curriculum.append(self.curriculum_list.pop(0))
with logger.prefix('itr #%d | ' % itr):
paths = self.sampler.obtain_samples(itr)
samples_data = self.sampler.process_samples(itr, paths)
self.log_diagnostics(paths)
self.optimize_policy(itr, samples_data)
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data)
self.current_itr = itr + 1
params["algo"] = self
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
# added
if self.plot_learning_curve:
cur_paths = samples_data["paths"]
total_returns = [
sum(path["rewards"]) for path in cur_paths
]
avg_returns.append(np.mean(total_returns))
std_returns.append(np.std(total_returns))
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
# added
if self.plot_learning_curve:
return avg_returns, std_returns
def train(self):
memory = ReplayMem(
obs_dim=self.env.observation_space.flat_dim,
act_dim=self.env.action_space.flat_dim,
memory_size=self.memory_size)
itr = 0
path_length = 0
path_return = 0
end = False
obs = self.env.reset()
for epoch in xrange(self.n_epochs):
logger.push_prefix("epoch #%d | " % epoch)
logger.log("Training started")
for epoch_itr in pyprind.prog_bar(range(self.epoch_length)):
# run the policy
if end:
# reset the environment and stretegy when an episode ends
obs = self.env.reset()
self.strategy.reset()
# self.policy.reset()
self.strategy_path_returns.append(path_return)
path_length = 0
path_return = 0
# note action is sampled from the policy not the target policy
act = self.strategy.get_action(obs, self.policy)
nxt, rwd, end, _ = self.env.step(act)
path_length += 1
path_return += rwd
if not end and path_length >= self.max_path_length:
end = True
if self.include_horizon_terminal:
memory.add_sample(obs, act, rwd, end)
else:
memory.add_sample(obs, act, rwd, end)
obs = nxt
if memory.size >= self.memory_start_size:
for update_time in xrange(self.n_updates_per_sample):
batch = memory.get_batch(self.batch_size)
self.do_update(itr, batch)
itr += 1
logger.log("Training finished")
if memory.size >= self.memory_start_size:
self.evaluate(epoch, memory)
logger.dump_tabular(with_prefix=False)
logger.pop_prefix()
def train(self):
sess = tf.get_default_session()
sess.run(tf.global_variables_initializer())
if self.init_pol_params is not None:
self.policy.set_param_values(self.init_pol_params)
if self.init_irl_params is not None:
self.irl_model.set_params(self.init_irl_params)
self.start_worker()
start_time = time.time()
returns = []
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
paths = self.obtain_samples(itr)
logger.log("Processing samples...")
paths = self.compute_irl(paths, itr=itr)
returns.append(self.log_avg_returns(paths))
samples_data = self.process_samples(itr, paths)
logger.log("Logging diagnostics...")
self.log_diagnostics(paths)
logger.log("Optimizing policy...")
self.optimize_policy(itr, samples_data)
logger.log("Saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
return
def custom_train(algo, sess=None):
"""
This is necessary so that we don't wipe away already initialized policy params.
Ideally, we should pull request this in as an option to RLlab and remove it from here once done
"""
created_session = True if (sess is None) else False
if sess is None:
sess = tf.Session()
sess.__enter__()
rollout_cache = []
initialize_uninitialized(sess)
algo.start_worker()
start_time = time.time()
for itr in range(algo.start_itr, algo.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
paths = algo.obtain_samples(itr)
logger.log("Processing samples...")
samples_data = algo.process_samples(itr, paths)
logger.log("Logging diagnostics...")
algo.log_diagnostics(paths)
logger.log("Optimizing policy...")
algo.optimize_policy(itr, samples_data)
logger.log("Saving snapshot...")
params = algo.get_itr_snapshot(itr, samples_data) # , **kwargs)
if algo.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
algo.shutdown_worker()
if created_session:
sess.close()
def train(self, sess=None):
created_session = True if (sess is None) else False
if sess is None:
sess = tf.Session()
sess.__enter__()
sess.run(tf.global_variables_initializer())
self.start_worker()
start_time = time.time()
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
paths = self.obtain_samples(itr)
logger.log("Processing samples...")
samples_data = self.process_samples(itr, paths)
logger.log("Logging diagnostics...")
self.log_diagnostics(paths)
logger.log("Optimizing policy...")
self.optimize_policy(itr, samples_data)
logger.log("Saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
if self.plot:
rollout(self.env, self.policy, animated=True, max_path_length=self.max_path_length)
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
if created_session:
sess.close()
def train(self):
# Bayesian neural network (BNN) initialization.
# ------------------------------------------------
batch_size = 1 # Redundant
n_batches = 5 # Hardcode or annealing scheme \pi_i.
# MDP observation and action dimensions.
obs_dim = np.prod(self.env.observation_space.shape)
act_dim = np.prod(self.env.action_space.shape)
logger.log("Building BNN model (eta={}) ...".format(self.eta))
start_time = time.time()
self.bnn = bnn.BNN(
n_in=(obs_dim + act_dim),
n_hidden=self.unn_n_hidden,
n_out=obs_dim,
n_batches=n_batches,
layers_type=self.unn_layers_type,
trans_func=lasagne.nonlinearities.rectify,
out_func=lasagne.nonlinearities.linear,
batch_size=batch_size,
n_samples=self.snn_n_samples,
prior_sd=self.prior_sd,
use_reverse_kl_reg=self.use_reverse_kl_reg,
reverse_kl_reg_factor=self.reverse_kl_reg_factor,
# stochastic_output=self.stochastic_output,
second_order_update=self.second_order_update,
learning_rate=self.unn_learning_rate,
compression=self.compression,
information_gain=self.information_gain
)
logger.log(
"Model built ({:.1f} sec).".format((time.time() - start_time)))
if self.use_replay_pool:
self.pool = SimpleReplayPool(
max_pool_size=self.replay_pool_size,
observation_shape=self.env.observation_space.shape,
action_dim=act_dim
)
# ------------------------------------------------
self.start_worker()
self.init_opt()
episode_rewards = []
episode_lengths = []
for itr in xrange(self.start_itr, self.n_itr):
logger.push_prefix('itr #%d | ' % itr)
paths = self.obtain_samples(itr)
samples_data = self.process_samples(itr, paths)
# Exploration code
# ----------------
if self.use_replay_pool:
# Fill replay pool.
logger.log("Fitting dynamics model using replay pool ...")
for path in samples_data['paths']:
path_len = len(path['rewards'])
for i in xrange(path_len):
obs = path['observations'][i]
act = path['actions'][i]
rew = path['rewards'][i]
term = (i == path_len - 1)
self.pool.add_sample(obs, act, rew, term)
# Now we train the dynamics model using the replay self.pool; only
# if self.pool is large enough.
if self.pool.size >= self.min_pool_size:
obs_mean, obs_std, act_mean, act_std = self.pool.mean_obs_act()
_inputss = []
_targetss = []
for _ in xrange(self.n_updates_per_sample):
batch = self.pool.random_batch(
self.pool_batch_size)
obs = (batch['observations'] - obs_mean) / \
(obs_std + 1e-8)
next_obs = (
batch['next_observations'] - obs_mean) / (obs_std + 1e-8)
act = (batch['actions'] - act_mean) / \
(act_std + 1e-8)
_inputs = np.hstack(
[obs, act])
_targets = next_obs
_inputss.append(_inputs)
_targetss.append(_targets)
old_acc = 0.
for _inputs, _targets in zip(_inputss, _targetss):
_out = self.bnn.pred_fn(_inputs)
old_acc += np.mean(np.square(_out - _targets))
old_acc /= len(_inputss)
for _inputs, _targets in zip(_inputss, _targetss):
self.bnn.train_fn(_inputs, _targets)
new_acc = 0.
for _inputs, _targets in zip(_inputss, _targetss):
_out = self.bnn.pred_fn(_inputs)
new_acc += np.mean(np.square(_out - _targets))
new_acc /= len(_inputss)
logger.record_tabular(
'BNN_DynModelSqLossBefore', old_acc)
logger.record_tabular(
'BNN_DynModelSqLossAfter', new_acc)
# ----------------
self.env.log_diagnostics(paths)
self.policy.log_diagnostics(paths)
self.baseline.log_diagnostics(paths)
self.optimize_policy(itr, samples_data)
logger.log("saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data)
paths = samples_data["paths"]
if self.store_paths:
params["paths"] = paths
episode_rewards.extend(sum(p["rewards"]) for p in paths)
episode_lengths.extend(len(p["rewards"]) for p in paths)
params["episode_rewards"] = np.array(episode_rewards)
params["episode_lengths"] = np.array(episode_lengths)
params["algo"] = self
logger.save_itr_params(itr, params)
logger.log("saved")
logger.dump_tabular(with_prefix=False)
logger.pop_prefix()
if self.plot:
self.update_plot()
if self.pause_for_plot:
raw_input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def train(self):
cur_std = self.sigma0
cur_mean = self.policy.get_param_values()
es = cma_es_lib.CMAEvolutionStrategy(
cur_mean, cur_std)
parallel_sampler.populate_task(self.env, self.policy)
if self.plot:
plotter.init_plot(self.env, self.policy)
cur_std = self.sigma0
cur_mean = self.policy.get_param_values()
itr = 0
while itr < self.n_itr and not es.stop():
if self.batch_size is None:
# Sample from multivariate normal distribution.
xs = es.ask()
xs = np.asarray(xs)
# For each sample, do a rollout.
infos = (
stateful_pool.singleton_pool.run_map(sample_return, [(x, self.max_path_length,
self.discount) for x in xs]))
else:
cum_len = 0
infos = []
xss = []
done = False
while not done:
sbs = stateful_pool.singleton_pool.n_parallel * 2
# Sample from multivariate normal distribution.
# You want to ask for sbs samples here.
xs = es.ask(sbs)
xs = np.asarray(xs)
xss.append(xs)
sinfos = stateful_pool.singleton_pool.run_map(
sample_return, [(x, self.max_path_length, self.discount) for x in xs])
for info in sinfos:
infos.append(info)
cum_len += len(info['returns'])
if cum_len >= self.batch_size:
xs = np.concatenate(xss)
done = True
break
# Evaluate fitness of samples (negative as it is minimization
# problem).
fs = - np.array([info['returns'][0] for info in infos])
# When batching, you could have generated too many samples compared
# to the actual evaluations. So we cut it off in this case.
xs = xs[:len(fs)]
# Update CMA-ES params based on sample fitness.
es.tell(xs, fs)
logger.push_prefix('itr #%d | ' % itr)
logger.record_tabular('Iteration', itr)
logger.record_tabular('CurStdMean', np.mean(cur_std))
undiscounted_returns = np.array(
[info['undiscounted_return'] for info in infos])
logger.record_tabular('AverageReturn',
np.mean(undiscounted_returns))
logger.record_tabular('StdReturn',
np.mean(undiscounted_returns))
logger.record_tabular('MaxReturn',
np.max(undiscounted_returns))
logger.record_tabular('MinReturn',
np.min(undiscounted_returns))
logger.record_tabular('AverageDiscountedReturn',
np.mean(fs))
logger.record_tabular('AvgTrajLen',
np.mean([len(info['returns']) for info in infos]))
self.env.log_diagnostics(infos)
self.policy.log_diagnostics(infos)
logger.save_itr_params(itr, dict(
itr=itr,
policy=self.policy,
env=self.env,
))
logger.dump_tabular(with_prefix=False)
if self.plot:
plotter.update_plot(self.policy, self.max_path_length)
logger.pop_prefix()
# Update iteration.
itr += 1
# Set final params.
self.policy.set_param_values(es.result()[0])
parallel_sampler.terminate_task()
def train(self):
# TODO - make this a util
flatten_list = lambda l: [item for sublist in l for item in sublist]
with tf.Session() as sess:
# Code for loading a previous policy. Somewhat hacky because needs to be in sess.
if self.load_policy is not None:
import joblib
self.policy = joblib.load(self.load_policy)['policy']
self.init_opt()
# initialize uninitialized vars (only initialize vars that were not loaded)
uninit_vars = []
for var in tf.global_variables():
# note - this is hacky, may be better way to do this in newer TF.
try:
sess.run(var)
except tf.errors.FailedPreconditionError:
uninit_vars.append(var)
sess.run(tf.variables_initializer(uninit_vars))
self.start_worker()
start_time = time.time()
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Sampling set of tasks/goals for this meta-batch...")
env = self.env
while 'sample_goals' not in dir(env):
env = env.wrapped_env
learner_env_goals = env.sample_goals(self.meta_batch_size)
self.policy.switch_to_init_dist() # Switch to pre-update policy
all_samples_data, all_paths = [], []
for step in range(self.num_grad_updates+1):
#if step > 0:
# import pdb; pdb.set_trace() # test param_vals functions.
logger.log('** Step ' + str(step) + ' **')
logger.log("Obtaining samples...")
paths = self.obtain_samples(itr, reset_args=learner_env_goals, log_prefix=str(step))
all_paths.append(paths)
logger.log("Processing samples...")
samples_data = {}
for key in paths.keys(): # the keys are the tasks
# don't log because this will spam the consol with every task.
samples_data[key] = self.process_samples(itr, paths[key], log=False)
all_samples_data.append(samples_data)
# for logging purposes only
self.process_samples(itr, flatten_list(paths.values()), prefix=str(step), log=True)
logger.log("Logging diagnostics...")
self.log_diagnostics(flatten_list(paths.values()), prefix=str(step))
if step < self.num_grad_updates:
logger.log("Computing policy updates...")
self.policy.compute_updated_dists(samples_data)
logger.log("Optimizing policy...")
# This needs to take all samples_data so that it can construct graph for meta-optimization.
self.optimize_policy(itr, all_samples_data)
logger.log("Saving snapshot...")
params = self.get_itr_snapshot(itr, all_samples_data[-1]) # , **kwargs)
if self.store_paths:
params["paths"] = all_samples_data[-1]["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
logger.dump_tabular(with_prefix=False)
# The rest is some example plotting code.
# Plotting code is useful for visualizing trajectories across a few different tasks.
if False and itr % 2 == 0 and self.env.observation_space.shape[0] <= 4: # point-mass
logger.log("Saving visualization of paths")
for ind in range(min(5, self.meta_batch_size)):
plt.clf()
plt.plot(learner_env_goals[ind][0], learner_env_goals[ind][1], 'k*', markersize=10)
plt.hold(True)
preupdate_paths = all_paths[0]
postupdate_paths = all_paths[-1]
pre_points = preupdate_paths[ind][0]['observations']
post_points = postupdate_paths[ind][0]['observations']
plt.plot(pre_points[:,0], pre_points[:,1], '-r', linewidth=2)
plt.plot(post_points[:,0], post_points[:,1], '-b', linewidth=1)
pre_points = preupdate_paths[ind][1]['observations']
post_points = postupdate_paths[ind][1]['observations']
plt.plot(pre_points[:,0], pre_points[:,1], '--r', linewidth=2)
plt.plot(post_points[:,0], post_points[:,1], '--b', linewidth=1)
pre_points = preupdate_paths[ind][2]['observations']
post_points = postupdate_paths[ind][2]['observations']
plt.plot(pre_points[:,0], pre_points[:,1], '-.r', linewidth=2)
plt.plot(post_points[:,0], post_points[:,1], '-.b', linewidth=1)
plt.plot(0,0, 'k.', markersize=5)
plt.xlim([-0.8, 0.8])
plt.ylim([-0.8, 0.8])
plt.legend(['goal', 'preupdate path', 'postupdate path'])
plt.savefig(osp.join(logger.get_snapshot_dir(), 'prepost_path'+str(ind)+'.png'))
elif False and itr % 2 == 0: # swimmer or cheetah
logger.log("Saving visualization of paths")
for ind in range(min(5, self.meta_batch_size)):
plt.clf()
goal_vel = learner_env_goals[ind]
plt.title('Swimmer paths, goal vel='+str(goal_vel))
plt.hold(True)
prepathobs = all_paths[0][ind][0]['observations']
postpathobs = all_paths[-1][ind][0]['observations']
plt.plot(prepathobs[:,0], prepathobs[:,1], '-r', linewidth=2)
plt.plot(postpathobs[:,0], postpathobs[:,1], '--b', linewidth=1)
plt.plot(prepathobs[-1,0], prepathobs[-1,1], 'r*', markersize=10)
plt.plot(postpathobs[-1,0], postpathobs[-1,1], 'b*', markersize=10)
plt.xlim([-1.0, 5.0])
plt.ylim([-1.0, 1.0])
plt.legend(['preupdate path', 'postupdate path'], loc=2)
plt.savefig(osp.join(logger.get_snapshot_dir(), 'swim1d_prepost_itr'+str(itr)+'_id'+str(ind)+'.pdf'))
self.shutdown_worker()
def train(self):
pool = SimpleReplayPool(
max_pool_size=self.replay_pool_size,
observation_dim=self.env.observation_space.flat_dim,
action_dim=self.env.action_space.flat_dim,
)
self.start_worker()
self.init_opt()
itr = 0
path_length = 0
path_return = 0
terminal = False
observation = self.env.reset()
sample_policy = pickle.loads(pickle.dumps(self.policy))
#self.experiment_space = self.env.action_space
for epoch in xrange(self.n_epochs):
logger.push_prefix('epoch #%d | ' % epoch)
logger.log("Training started")
for epoch_itr in pyprind.prog_bar(xrange(self.epoch_length)):
# Execute policy
if terminal:
observation = self.env.reset()
self.es.reset()
sample_policy.reset()
self.es_path_returns.append(path_return)
path_length = 0
path_return = 0
action = self.es.get_action(itr, observation, policy=sample_policy) # qf=qf)
next_observation, reward, terminal, _ = self.env.step(action, observation)
path_length += 1
path_return += reward
if not terminal and path_length >= self.max_path_length:
terminal = True
if self.include_horizon_terminal_transitions:
pool.add_sample(
self.env.observation_space.flatten(observation),
self.env.action_space.flatten(action),
reward * self.scale_reward,
terminal
)
else:
pool.add_sample(
self.env.observation_space.flatten(observation),
self.env.action_space.flatten(action),
reward * self.scale_reward,
terminal
)
observation = next_observation
if pool.size >= self.min_pool_size:
for update_itr in xrange(self.n_updates_per_sample):
# Train policy
batch = pool.random_batch(self.batch_size)
self.do_training(itr, batch)
sample_policy.set_param_values(self.policy.get_param_values())
itr += 1
self.pool = pool
logger.log("Training finished")
if pool.size >= self.min_pool_size:
self.evaluate(epoch, pool)
params = self.get_epoch_snapshot(epoch)
logger.save_itr_params(epoch, params)
logger.dump_tabular(with_prefix=False)
logger.pop_prefix()
if self.plot:
self.update_plot()
if self.pause_for_plot:
raw_input("Plotting evaluation run: Press Enter to "
"continue...")
self.env.terminate()
self.policy.terminate()
def _train(self, env, policy, pool):
"""Perform RL training.
Args:
env (`rllab.Env`): Environment used for training
policy (`Policy`): Policy used for training
pool (`PoolBase`): Sample pool to add samples to
"""
self._init_training(env, policy, pool)
with self._sess.as_default():
observation = env.reset()
policy.reset()
path_length = 0
path_return = 0
last_path_return = 0
max_path_return = -np.inf
n_episodes = 0
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.push_prefix('Epoch #%d | ' % epoch)
if self.iter_callback is not None:
self.iter_callback(locals(), globals())
for t in range(self._epoch_length):
iteration = t + epoch * self._epoch_length
action, _ = policy.get_action(observation)
next_ob, reward, terminal, info = env.step(action)
path_length += 1
path_return += reward
self.pool.add_sample(
observation,
action,
reward,
terminal,
next_ob,
)
if terminal or path_length >= self._max_path_length:
observation = env.reset()
policy.reset()
path_length = 0
max_path_return = max(max_path_return, path_return)
last_path_return = path_return
path_return = 0
n_episodes += 1
else:
observation = next_ob
gt.stamp('sample')
if self.pool.size >= self._min_pool_size:
for i in range(self._n_train_repeat):
batch = self.pool.random_batch(self._batch_size)
self._do_training(iteration, batch)
gt.stamp('train')
self._evaluate(epoch)
params = self.get_snapshot(epoch)
logger.save_itr_params(epoch, params)
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)
logger.record_tabular('episodes', n_episodes)
logger.record_tabular('max-path-return', max_path_return)
logger.record_tabular('last-path-return', last_path_return)
logger.record_tabular('pool-size', self.pool.size)
logger.dump_tabular(with_prefix=False)
logger.pop_prefix()
gt.stamp('eval')
env.terminate()
def train(self):
with tf.Session() as sess:
if self.load_policy is not None:
import joblib
self.policy = joblib.load(self.load_policy)['policy']
self.init_opt()
# initialize uninitialized vars (I know, it's ugly)
uninit_vars = []
for var in tf.all_variables():
try:
sess.run(var)
except tf.errors.FailedPreconditionError:
uninit_vars.append(var)
sess.run(tf.initialize_variables(uninit_vars))
#sess.run(tf.initialize_all_variables())
self.start_worker()
start_time = time.time()
for itr in range(self.start_itr, self.n_itr):
itr_start_time = time.time()
with logger.prefix('itr #%d | ' % itr):
logger.log("Obtaining samples...")
paths = self.obtain_samples(itr)
logger.log("Processing samples...")
samples_data = self.process_samples(itr, paths)
logger.log("Logging diagnostics...")
self.log_diagnostics(paths)
logger.log("Optimizing policy...")
self.optimize_policy(itr, samples_data)
#new_param_values = self.policy.get_variable_values(self.policy.all_params)
logger.log("Saving snapshot...")
params = self.get_itr_snapshot(itr, samples_data) # , **kwargs)
if self.store_paths:
params["paths"] = samples_data["paths"]
logger.save_itr_params(itr, params)
logger.log("Saved")
logger.record_tabular('Time', time.time() - start_time)
logger.record_tabular('ItrTime', time.time() - itr_start_time)
#import pickle
#with open('paths_itr'+str(itr)+'.pkl', 'wb') as f:
# pickle.dump(paths, f)
# debugging
"""
if itr % 1 == 0:
logger.log("Saving visualization of paths")
import matplotlib.pyplot as plt;
for ind in range(5):
plt.clf(); plt.hold(True)
points = paths[ind]['observations']
plt.plot(points[:,0], points[:,1], '-r', linewidth=2)
plt.xlim([-1.0, 1.0])
plt.ylim([-1.0, 1.0])
plt.legend(['path'])
plt.savefig('/home/cfinn/path'+str(ind)+'.png')
"""
# end debugging
logger.dump_tabular(with_prefix=False)
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.shutdown_worker()
def train(self):
# This seems like a rather sequential method
pool = SimpleReplayPool(
max_pool_size=self.replay_pool_size,
observation_dim=self.env.observation_space.flat_dim,
action_dim=self.env.action_space.flat_dim,
)
self.start_worker()
self.init_opt()
itr = 0
path_length = 0
path_return = 0
terminal = False
observation = self.env.reset()
sample_policy = pickle.loads(pickle.dumps(self.policy))
for epoch in range(self.n_epochs):
logger.push_prefix('epoch #%d | ' % epoch)
logger.log("Training started")
for epoch_itr in pyprind.prog_bar(range(self.epoch_length)):
# Execute policy
if terminal: # or path_length > self.max_path_length:
# Note that if the last time step ends an episode, the very
# last state and observation will be ignored and not added
# to the replay pool
observation = self.env.reset()
self.es.reset()
sample_policy.reset()
self.es_path_returns.append(path_return)
path_length = 0
path_return = 0
action = self.es.get_action(itr, observation, policy=sample_policy) # qf=qf)
next_observation, reward, terminal, _ = self.env.step(action)
path_length += 1
path_return += reward
if not terminal and path_length >= self.max_path_length:
terminal = True
# only include the terminal transition in this case if the flag was set
if self.include_horizon_terminal_transitions:
pool.add_sample(observation, action, reward * self.scale_reward, terminal)
else:
pool.add_sample(observation, action, reward * self.scale_reward, terminal)
observation = next_observation
if pool.size >= self.min_pool_size:
for update_itr in range(self.n_updates_per_sample):
# Train policy
batch = pool.random_batch(self.batch_size)
self.do_training(itr, batch)
sample_policy.set_param_values(self.policy.get_param_values())
itr += 1
logger.log("Training finished")
if pool.size >= self.min_pool_size:
self.evaluate(epoch, pool)
params = self.get_epoch_snapshot(epoch)
logger.save_itr_params(epoch, params)
logger.dump_tabular(with_prefix=False)
logger.pop_prefix()
if self.plot:
self.update_plot()
if self.pause_for_plot:
input("Plotting evaluation run: Press Enter to "
"continue...")
self.env.terminate()
self.policy.terminate()
def train(self):
parallel_sampler.populate_task(self.env, self.policy)
if self.plot:
plotter.init_plot(self.env, self.policy)
cur_std = self.init_std
cur_mean = self.policy.get_param_values()
# K = cur_mean.size
n_best = max(1, int(self.n_samples * self.best_frac))
for itr in range(self.n_itr):
# sample around the current distribution
extra_var_mult = max(1.0 - itr / self.extra_decay_time, 0)
sample_std = np.sqrt(np.square(cur_std) + np.square(self.extra_std) * extra_var_mult)
if self.batch_size is None:
criterion = 'paths'
threshold = self.n_samples
else:
criterion = 'samples'
threshold = self.batch_size
infos = stateful_pool.singleton_pool.run_collect(
_worker_rollout_policy,
threshold=threshold,
args=(dict(cur_mean=cur_mean,
sample_std=sample_std,
max_path_length=self.max_path_length,
discount=self.discount,
criterion=criterion),)
)
xs = np.asarray([info[0] for info in infos])
paths = [info[1] for info in infos]
fs = np.array([path['returns'][0] for path in paths])
print((xs.shape, fs.shape))
best_inds = (-fs).argsort()[:n_best]
best_xs = xs[best_inds]
cur_mean = best_xs.mean(axis=0)
cur_std = best_xs.std(axis=0)
best_x = best_xs[0]
logger.push_prefix('itr #%d | ' % itr)
logger.record_tabular('Iteration', itr)
logger.record_tabular('CurStdMean', np.mean(cur_std))
undiscounted_returns = np.array([path['undiscounted_return'] for path in paths])
logger.record_tabular('AverageReturn',
np.mean(undiscounted_returns))
logger.record_tabular('StdReturn',
np.mean(undiscounted_returns))
logger.record_tabular('MaxReturn',
np.max(undiscounted_returns))
logger.record_tabular('MinReturn',
np.min(undiscounted_returns))
logger.record_tabular('AverageDiscountedReturn',
np.mean(fs))
logger.record_tabular('AvgTrajLen',
np.mean([len(path['returns']) for path in paths]))
logger.record_tabular('NumTrajs',
len(paths))
self.policy.set_param_values(best_x)
self.env.log_diagnostics(paths)
self.policy.log_diagnostics(paths)
logger.save_itr_params(itr, dict(
itr=itr,
policy=self.policy,
env=self.env,
cur_mean=cur_mean,
cur_std=cur_std,
))
logger.dump_tabular(with_prefix=False)
logger.pop_prefix()
if self.plot:
plotter.update_plot(self.policy, self.max_path_length)
parallel_sampler.terminate_task()
