def train(env_id, num_timesteps, seed):
env = make_mujoco_env(env_id, seed)
eval_env = make_mujoco_env(env_id, seed)
sess = tf.InteractiveSession()
ob_dim = env.observation_space.shape[0]
ac_dim = env.action_space.shape[0]
with tf.variable_scope("vf"):
vf = NeuralNetValueFunction(ob_dim, ac_dim)
with tf.variable_scope("pi"):
policy = GaussianMlpPolicy(ob_dim, ac_dim)
# log_dir = './result/%s'%(args.alg)
learn(env,
policy=policy,
vf=vf,
gamma=0.99,
lam=0.97,
timesteps_per_batch=2500,
desired_kl=0.002,
num_timesteps=num_timesteps,
animate=False,
eval_env=eval_env)
env.close()
def train(env_id, num_timesteps, seed):
import mlp_policy, pposgd_simple
U.make_session(num_cpu=1).__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name,
ob_space=ob_space,
ac_space=ac_space,
hid_size=32,
num_hid_layers=2)
env = make_mujoco_env(env_id, seed)
logger.log("========observation_space %s action_space %s" %
(str(env.observation_space), str(env.action_space)))
pposgd_simple.learn(env,
policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=1024,
clip_param=0.2,
entcoeff=0.0,
optim_epochs=10,
optim_stepsize=3e-4,
optim_batchsize=64,
gamma=0.99,
lam=0.95,
schedule='linear')
env.close()
def train(env_id, num_timesteps, seed=0):
U.make_session(num_cpu=1).__enter__()
def policy_fn(name, ob_space, ac_space):
return cartpole_policy.CartPolePolicy(name=name,
ob_space=ob_space,
ac_space=ac_space,
hid_size=6,
num_hid_layers=2)
env = make_mujoco_env(env_id, seed)
pi = pposgd_simple.learn(
env,
policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2,
entcoeff=0.0,
optim_epochs=10,
optim_stepsize=3e-4,
optim_batchsize=64,
gamma=0.99,
lam=0.95,
schedule='linear',
)
env.close()
return pi
def train(env_id, num_timesteps, seed, model_path=None):
from baselines.ppo1 import mlp_policy, pposgd_simple
U.make_session(num_cpu=1).__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name, ob_space=ob_space, ac_space=ac_space,
hid_size=64, num_hid_layers=2)
env = make_mujoco_env(env_id, seed)
# parameters below were the best found in a simple random search
# these are good enough to make humanoid walk, but whether those are
# an absolute best or not is not certain
pi = pposgd_simple.learn(env, policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2, entcoeff=0.0,
optim_epochs=10,
optim_stepsize=3e-4,
optim_batchsize=64,
gamma=0.99,
lam=0.95,
schedule='linear',
)
print(pi)
env.close()
if model_path:
U.save_state(model_path)
return pi
def teacher_replay():
env = make_mujoco_env("Reacher-v2", 0)
rets = []
episode = 0
ret = 0
timestep = 1
with tf.Session() as sess:
teacher = TeacherAgent(env, sess, True)
ob = env.reset()
ob = np.expand_dims(ob, axis=0)
print(ob)
while episode < TOTAL_EPISODES:
timestep += 1
ac, _ = teacher.pi.act(False, ob)
ob, reward, new, _ = env.step(ac)
ob = np.expand_dims(ob, axis=0)
ret += reward
if new:
print(
"********** Episode {0}, timestep {1} ***********".format(
episode, timestep))
print("return: {0}".format(reward))
ob = env.reset()
ob = np.expand_dims(ob, axis=0)
rets.append(ret)
ret = 0
timestep = 1
episode += 1
env.render()
# save_results
np.save(teacher_ret_path, rets)
def test_lstm_example():
import tensorflow as tf
from baselines.common import policies, models, cmd_util
from baselines.common.vec_env.dummy_vec_env import DummyVecEnv
# create vectorized environment
venv = DummyVecEnv([lambda: cmd_util.make_mujoco_env('Reacher-v2', seed=0)])
with tf.Session() as sess:
# build policy based on lstm network with 128 units
policy = policies.build_policy(venv, models.lstm(128))(nbatch=1, nsteps=1)
# initialize tensorflow variables
sess.run(tf.global_variables_initializer())
# prepare environment variables
ob = venv.reset()
state = policy.initial_state
done = [False]
step_counter = 0
# run a single episode until the end (i.e. until done)
while True:
action, _, state, _ = policy.step(ob, S=state, M=done)
ob, reward, done, _ = venv.step(action)
step_counter += 1
if done:
break
assert step_counter > 5
def train(env_id, num_timesteps, seed, save, clip_param, optim_stepsize,
optim_batchsize, gamma, lam):
from baselines.ppo1 import mlp_policy, pposgd_simple
U.make_session(num_cpu=1).__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name,
ob_space=ob_space,
ac_space=ac_space,
hid_size=64,
num_hid_layers=2)
env = make_mujoco_env(env_id, seed)
ret = pposgd_simple.learn(
env,
policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=clip_param,
entcoeff=0.0,
optim_epochs=10,
optim_stepsize=optim_stepsize,
optim_batchsize=optim_batchsize,
gamma=gamma,
lam=lam,
schedule='linear',
)
env.close()
np.savetxt(save, np.array([ret]))
def train(env_id, num_timesteps, seed, hid_size=64, num_hid_layers=2):
from baselines.ppo1 import mlp_policy, pposgd_simple
assert env_id in (_MujocoEnvs + _RoboticsEnvs)
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name, ob_space=ob_space, ac_space=ac_space,
hid_size=hid_size, num_hid_layers=num_hid_layers)
if env_id in _MujocoEnvs:
env = make_mujoco_env(env_id, seed)
elif env_id in _RoboticsEnvs:
env = make_robotics_env(env_id, seed)
else:
raise ValueError('Environment `{0}` is not supported.'.format(env_id))
# Not putting these params in config as we do not plan on changing them.
optim_epochs = 10 if env_id in _MujocoEnvs else 5
optim_batchsize = 64 if env_id in _MujocoEnvs else 256
pi = pposgd_simple.learn(env, policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2, entcoeff=0.0,
optim_epochs=optim_epochs, optim_stepsize=3e-4,
optim_batchsize=optim_batchsize,
gamma=0.99, lam=0.95, schedule='linear',
)
env.close()
return pi
def train(env_id, num_timesteps, seed):
import baselines.common.tf_util as U
sess = U.single_threaded_session()
sess.__enter__()
rank = MPI.COMM_WORLD.Get_rank()
if rank == 0:
logger.configure()
else:
logger.configure(format_strs=[])
logger.set_level(logger.DISABLED)
workerseed = seed + 10000 * MPI.COMM_WORLD.Get_rank()
def policy_fn(name, ob_space, ac_space):
return MlpPolicy(name=name,
ob_space=ob_space,
ac_space=ac_space,
hid_size=32,
num_hid_layers=2)
env = make_mujoco_env(env_id, workerseed)
trpo_mpi.learn(env,
policy_fn,
timesteps_per_batch=1024,
max_kl=0.01,
cg_iters=10,
cg_damping=0.1,
max_timesteps=num_timesteps,
gamma=0.99,
lam=0.98,
vf_iters=5,
vf_stepsize=1e-3)
env.close()
def train(env_id, num_timesteps, timesteps_per_actor_batch, seed,
entropy_coeff, filepath):
from baselines.ppo1 import mlp_policy, pposgd_simple
sess = U.make_session(num_cpu=1)
sess.__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name,
ob_space=ob_space,
ac_space=ac_space,
hid_size=64,
num_hid_layers=2)
env = make_mujoco_env(env_id, seed)
pposgd_simple.learn(env,
policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=timesteps_per_actor_batch,
clip_param=0.2,
entcoeff=entropy_coeff,
optim_epochs=10,
optim_stepsize=3e-4,
optim_batchsize=64,
gamma=0.99,
lam=0.95,
schedule='linear')
env.close()
# Save policy etc.
saver = tf.train.Saver()
saver.save(sess, filepath + "_final")
def train(env_id, num_timesteps, seed):
"""
Train PPO1 model for the Mujoco environment, for testing purposes
:param env_id: (str) Environment ID
:param num_timesteps: (int) The total number of samples
:param seed: (int) The initial seed for training
"""
def policy_fn(name, ob_space, ac_space, sess=None, placeholders=None):
return mlp_policy.MlpPolicy(name=name,
ob_space=ob_space,
ac_space=ac_space,
hid_size=64,
num_hid_layers=2,
sess=sess,
placeholders=placeholders)
env = make_mujoco_env(env_id, seed)
pposgd_simple.learn(env,
policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2,
entcoeff=0.0,
optim_epochs=10,
optim_stepsize=3e-4,
optim_batchsize=64,
gamma=0.99,
lam=0.95,
schedule='linear')
env.close()
def train(env_id, num_timesteps, seed, alg, lr, momentum):
env = make_mujoco_env(env_id, seed)
if alg == 'sgd':
from baselines.acktr.acktr_cont import learn
elif alg == 'mid':
from baselines.acktr.acktr_cont_midpoint import learn
elif alg == 'geo':
from baselines.acktr.acktr_cont_geo import learn
else:
raise ValueError
nprocs = 4
with tf.Session(
config=tf.ConfigProto(allow_soft_placement=True,
intra_op_parallelism_threads=nprocs,
inter_op_parallelism_threads=nprocs)):
ob_dim = env.observation_space.shape[0]
ac_dim = env.action_space.shape[0]
with tf.variable_scope("vf"):
vf = NeuralNetValueFunction(ob_dim, ac_dim)
policy = GaussianMlpPolicy(ob_dim, ac_dim, 'pi')
learn(env,
policy=policy,
vf=vf,
gamma=0.99,
lam=0.97,
timesteps_per_batch=2500,
desired_kl=0.002,
num_timesteps=num_timesteps,
animate=False,
lr=lr,
momentum=momentum)
env.close()
def train(env_id, num_timesteps, seed, save_file, load_file, render,
stochastic):
from baselines.ppo1 import mlp_policy
import my_pposgd_simple as pposgd_simple
sess = U.make_session(num_cpu=1).__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name,
ob_space=ob_space,
ac_space=ac_space,
hid_size=64,
num_hid_layers=2)
env = make_mujoco_env(env_id, seed)
pposgd_simple.learn(env,
policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2,
entcoeff=0.0,
optim_epochs=10,
optim_stepsize=3e-4,
optim_batchsize=64,
gamma=0.99,
lam=0.95,
schedule='linear',
sess=sess,
save_file=save_file,
load_file=load_file,
render=render,
stochastic=stochastic)
env.close()
def train(env_id, num_timesteps, seed):
from baselines.ppo1 import mlp_policy, pposgd_simple
from baselines.ppo1 import lstm_fc_policy
from baselines.ppo1 import one_lstm_policy
U.make_session(num_cpu=4).__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(
name=name,
ob_space=ob_space,
ac_space=ac_space,
hid_size=64,
num_hid_layers=2)
env = make_mujoco_env(env_id, seed)
pposgd_simple.learn(
env,
policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2,
entcoeff=0.0,
optim_epochs=10,
optim_stepsize=3e-4,
optim_batchsize=64,
gamma=0.99,
lam=0.95,
schedule='linear',
)
env.close()
def main():
logger.configure()
parser = mujoco_arg_parser()
parser.add_argument('--model-path',
default='checkpoints_best/Humanoid-v2-6914')
parser.set_defaults(num_timesteps=int(2e8))
args = parser.parse_args()
if not args.play:
# train the model
train(num_timesteps=args.num_timesteps,
seed=args.seed,
model_path=args.model_path)
else:
# construct the model object, load pre-trained model and render
pi = train(num_timesteps=1, seed=args.seed)
U.load_state(args.model_path)
env = make_mujoco_env('Humanoid-v2', seed=123)
ob = env.reset()
while True:
action = pi.act(stochastic=False, ob=ob)[0]
ob, _, done, _ = env.step(action)
env.render()
time.sleep(0.01)
if done:
ob = env.reset()
def train(num_timesteps, seed, model_path=None):
env_id = 'Humanoid-v2'
from baselines.ppo1 import mlp_policy, pposgd_simple
U.make_session(num_cpu=1).__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name, ob_space=ob_space, ac_space=ac_space,
hid_size=64, num_hid_layers=2)
env = make_mujoco_env(env_id, seed)
# parameters below were the best found in a simple random search
# these are good enough to make humanoid walk, but whether those are
# an absolute best or not is not certain
env = RewScale(env, 0.1)
pi = pposgd_simple.learn(env, policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2, entcoeff=0.0,
optim_epochs=10,
optim_stepsize=3e-4,
optim_batchsize=64,
gamma=0.99,
lam=0.95,
schedule='linear',
)
env.close()
if model_path:
U.save_state(model_path)
return pi
def main():
logger.configure()
parser = mujoco_arg_parser()
parser.add_argument('--model-path', default=os.path.join(logger.get_dir(), 'policy'))
parser.set_defaults(num_timesteps=int(2e7))
args = parser.parse_args()
if not args.play:
# train the model
train(args.env, num_timesteps=args.num_timesteps, seed=args.seed, model_path=args.model_path)
else:
# construct the model object, load pre-trained model and render
pi = train(args.env, num_timesteps=1, seed=args.seed)
U.load_state(args.model_path)
env = make_mujoco_env(args.env, seed=0)
ob = env.reset()
while True:
action = pi.act(stochastic=False, ob=ob)[0]
ob, _, done, _ = env.step(action)
print(ob,action)
#env.render()
if done:
ob = env.reset()
def test_lstm_example():
import tensorflow as tf
from baselines.common import policies, models, cmd_util
from baselines.common.vec_env.dummy_vec_env import DummyVecEnv
# create vectorized environment
venv = DummyVecEnv(
[lambda: cmd_util.make_mujoco_env('Reacher-v2', seed=0)])
with tf.Session() as sess:
# build policy based on lstm network with 128 units
policy = policies.build_policy(venv, models.lstm(128))(nbatch=1,
nsteps=1)
# initialize tensorflow variables
sess.run(tf.global_variables_initializer())
# prepare environment variables
ob = venv.reset()
state = policy.initial_state
done = [False]
step_counter = 0
# run a single episode until the end (i.e. until done)
while True:
action, _, state, _ = policy.step(ob, S=state, M=done)
ob, reward, done, _ = venv.step(action)
step_counter += 1
if done:
break
assert step_counter > 5
def main():
"""
Runs the test
"""
logger.configure()
parser = mujoco_arg_parser()
parser.add_argument('--model-path',
default=os.path.join(logger.get_dir(),
'humanoid_policy'))
parser.set_defaults(num_timesteps=int(2e7))
args = parser.parse_args()
if not args.play:
# train the model
train(num_timesteps=args.num_timesteps,
seed=args.seed,
model_path=args.model_path)
else:
# construct the model object, load pre-trained model and render
policy = train(num_timesteps=1, seed=args.seed)
tf_util.load_state(args.model_path)
env = make_mujoco_env('Humanoid-v2', seed=0)
obs = env.reset()
while True:
action = policy.act(stochastic=False, obs=obs)[0]
obs, _, done, _ = env.step(action)
env.render()
if done:
obs = env.reset()
def main():
args = mujoco_arg_parser().parse_args()
logger.configure()
pi = train(args.env, num_timesteps=args.num_timesteps, seed=args.seed)
env = make_mujoco_env('Walker2d-v2', seed=0)
ob = env.reset()
while True:
action = pi.act(stochastic=False, ob=ob)[0]
ob, _, done, _ = env.step(action)
env.render()
time.sleep(0.01)
if done:
env.reset()
def createEnv(env_id='CartPole-v1', seed=0):
import baselines.common.tf_util as U
sess = U.single_threaded_session()
sess.__enter__()
rank = MPI.COMM_WORLD.Get_rank()
if rank == 0:
logger.configure()
else:
logger.configure(format_strs=[])
logger.set_level(logger.DISABLED)
workerseed = seed + 10000 * MPI.COMM_WORLD.Get_rank()
return make_mujoco_env(env_id, workerseed)
def train(num_timesteps, seed, model_path=None):
env_id = 'Odie-v2'
from baselines.ppo1 import mlp_policy, pposgd_simple
U.make_session(num_cpu=1).__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name,
ob_space=ob_space,
ac_space=ac_space,
hid_size=64,
num_hid_layers=2)
env = make_mujoco_env(env_id, seed)
env = MinotaurMonitor(env_id, env)
def callback(locals, globals):
if (len(locals['rewbuffer'])):
meanlosses = locals['meanlosses']
loss_names = locals['loss_names']
data = {
'iters_so_far': locals['iters_so_far'],
'episode_reward_mean': np.mean(locals['rewbuffer']),
}
for (lossval, name) in zipsame(locals['meanlosses'],
locals['loss_names']):
data['loss_' + name] = float(lossval)
env.post_data(data)
# parameters below were the best found in a simple random search
# these are good enough to make humanoid walk, but whether those are
# an absolute best or not is not certain
pi = pposgd_simple.learn(env,
policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2,
entcoeff=0.0,
optim_epochs=10,
optim_stepsize=3e-4,
optim_batchsize=64,
gamma=0.99,
lam=0.95,
schedule='linear',
callback=callback)
env.close()
if model_path:
U.save_state(model_path)
return pi
def train(env_id, num_timesteps, seed):
from baselines.ppo1 import mlp_policy, pposgd_simple
U.make_session(num_cpu=1).__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name, ob_space=ob_space, ac_space=ac_space,
hid_size=64, num_hid_layers=2)
env = make_mujoco_env(env_id, seed)
pposgd_simple.learn(env, policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2, entcoeff=0.0,
optim_epochs=10, optim_stepsize=3e-4, optim_batchsize=64,
gamma=0.99, lam=0.95, schedule='linear',
)
env.close()
def train(env_id, num_timesteps, seed):
env = make_mujoco_env(env_id, seed)
with tf.Session(config=tf.ConfigProto()):
ob_dim = env.observation_space.shape[0]
ac_dim = env.action_space.shape[0]
with tf.variable_scope("vf"):
vf = NeuralNetValueFunction(ob_dim, ac_dim)
with tf.variable_scope("pi"):
policy = GaussianMlpPolicy(ob_dim, ac_dim)
learn(env, policy=policy, vf=vf,
gamma=0.99, lam=0.97, timesteps_per_batch=2500,
desired_kl=0.002,
num_timesteps=num_timesteps, animate=False)
env.close()
def train(env_id, parameters, seed):
env = make_mujoco_env(env_id, seed)
with tf.Session(config=tf.ConfigProto()):
ob_dim = env.observation_space.shape[0]
ac_dim = env.action_space.shape[0]
with tf.variable_scope("vf"):
vf = NeuralNetValueFunction(ob_dim, ac_dim)
with tf.variable_scope('pi'):
policy = GaussianMlpPolicy(ob_dim, ac_dim)
#with tf.variable_scope ('policy_prev'):
# policy_previous = GaussianMlpPolicy(ob_dim, ac_dim, name='policy_prev')
learn(env, policy=policy, vf=vf, parameters=parameters)
env.close()
def train(env_id, num_timesteps, seed):
from baselines.ppo1 import mlp_policy
sess = U.make_session(num_cpu=4)
sess.__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name, ob_space=ob_space, ac_space=ac_space,
hid_size=128, num_hid_layers=8)
env = make_mujoco_env(env_id, seed)
learn(sess, env_id, env, policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2, entcoeff=0.0,
optim_epochs=10, optim_stepsize=3e-4, optim_batchsize=64,
gamma=0.99, lam=0.95, schedule='linear'
)
env.close()
tf.train.Saver().save(sess, directory + env_id + '/model.ckpt')
def train(env_id, num_timesteps, seed):
import baselines.common.tf_util as U
sess = U.single_threaded_session()
sess.__enter__()
rank = MPI.COMM_WORLD.Get_rank()
if rank == 0:
logger.configure()
else:
logger.configure(format_strs=[])
logger.set_level(logger.DISABLED)
workerseed = seed + 10000 * MPI.COMM_WORLD.Get_rank()
def policy_fn(name, ob_space, ac_space):
return MlpPolicy(name=name, ob_space=ob_space, ac_space=ac_space,
hid_size=32, num_hid_layers=2)
env = make_mujoco_env(env_id, workerseed)
trpo_mpi.learn(env, policy_fn, timesteps_per_batch=1024, max_kl=0.01, cg_iters=10, cg_damping=0.1,
max_timesteps=num_timesteps, gamma=0.99, lam=0.98, vf_iters=5, vf_stepsize=1e-3)
env.close()
def train(num_timesteps, seed, model_path=None):
"""
Train PPO1 model for the Humanoid environment, for testing purposes
:param num_timesteps: (int) The total number of samples
:param seed: (int) The initial seed for training
:param model_path: (str) path to the model
"""
env_id = 'Humanoid-v2'
def policy_fn(name, ob_space, ac_space, sess=None, placeholders=None):
return mlp_policy.MlpPolicy(name=name,
ob_space=ob_space,
ac_space=ac_space,
hid_size=64,
num_hid_layers=2,
sess=sess,
placeholders=placeholders)
env = make_mujoco_env(env_id, seed)
# parameters below were the best found in a simple random search
# these are good enough to make humanoid walk, but whether those are
# an absolute best or not is not certain
env = RewScale(env, 0.1)
policy = pposgd_simple.learn(env,
policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2,
entcoeff=0.0,
optim_epochs=10,
optim_stepsize=3e-4,
optim_batchsize=64,
gamma=0.99,
lam=0.95,
schedule='linear')
env.close()
if model_path:
tf_util.save_state(model_path)
return policy
def main():
args = mujoco_arg_parser().parse_args()
logger.configure()
pi = train(args.env, num_timesteps=1, seed=args.seed, play=False)
run = 'run-20180703_034952-1a24a6ik/'
run_home = '/home/ubuntu/wandb_baselines/wandb/' + run #run-20180702_220411-4xtopfue/'
model_path = run_home + 'humanoid_policy'
# model_path = '/home/ubuntu/wandb_baselines/wandb/run-20180702_220411-4xtopfue/humanoid_policy'
U.load_state(model_path)
seed = random.randint(1, 1000)
env = make_mujoco_env('RoboschoolHumanoid-v1', seed=seed)
tot_r = 0
ob = env.reset()
runs = 0
video = True
if video:
video_recorder = gym.wrappers.monitoring.video_recorder.VideoRecorder(
env=env,
base_path=os.path.join('/home/ubuntu/wandb_baselines',
'humanoid_run2_%i' % seed),
enabled=True)
while True:
action = pi.act(stochastic=False, ob=ob)[0]
ob, r, done, _ = env.step(action)
if video:
video_recorder.capture_frame()
tot_r += r
if done:
ob = env.reset()
runs += 1
# if video:
# video_recorder.close()
# video_recorder = gym.wrappers.monitoring.video_recorder.VideoRecorder(env=env, base_path=os.path.join(run_home, 'humanoid_run_%i'%runs), enabled=True)
print(tot_r)
tot_r = 0
print("@@@@@@@@@@@@@@@")
if runs > 0:
break
def train(env_id, num_timesteps, seed):
from baselines.ppo1 import mlp_policy, pposgd_simple
# enter a tensorflow session
U.make_session(num_cpu=1).__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name, ob_space=ob_space, ac_space=ac_space,
hid_size=64, num_hid_layers=2, gaussian_fixed_var=True)
env = make_mujoco_env(env_id, seed)
pi, result, graph_data = pposgd_simple.learn(env, policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2, entcoeff=0.0,
optim_epochs=10, optim_stepsize=3e-4, optim_batchsize=64,
gamma=0.99, lam=0.95, schedule='linear',
)
if MPI.COMM_WORLD.Get_rank()==0:
with open(resultfile, 'a+') as file:
file.write("{0} result: {1}\n".format(env_id, result));
with open(graphfile, 'wb') as file:
pickle.dump([np.array(l) for l in list(zip(*graph_data))], file);
env.close()
def train(env_id, num_timesteps, seed, logdir):
from baselines.ppo1 import mlp_policy, pposgd_simple
U.make_session(num_cpu=1).__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name, ob_space=ob_space, ac_space=ac_space,
hid_size=64, num_hid_layers=2)
env = make_mujoco_env(env_id, seed)
pposgd_simple.learn(env, policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.2, entcoeff=0.0,
optim_epochs=10, optim_stepsize=3e-4, optim_batchsize=64,
gamma=0.99, lam=0.95, schedule='linear',
)
import os
fname = os.path.join(logdir, 'final_state')
os.path.join(logdir, 'final_state')
saver = tf.train.Saver()
saver.save(tf.get_default_session(), fname)
env.close()
def student_replay(klts):
env = make_mujoco_env("Reacher-v2", 0)
timestep = 0
ret = 0
episode = 0
with tf.Session() as sess:
student = StudentAgent(env, sess, True, klts)
ob = env.reset()
while episode < TOTAL_EPISODES:
ac = student.pi.act(False, ob)
ob, reward, new, _ = env.step(ac)
print("********** Episode {0}, timestep {1} ***********".format(
episode, timestep))
print("reward: {0}".format(reward))
ret += reward
timestep += 1
if new:
print(ob)
ob = env.reset()
timestep = 0
episode += 1
def train(num_timesteps, seed, model_path=None):
env_id = 'Humanoid-v2'
from baselines.ppo1 import mlp_policy, pposgd_simple
U.make_session(num_cpu=1).__enter__()
def policy_fn(name, ob_space, ac_space):
return mlp_policy.MlpPolicy(name=name,
ob_space=ob_space,
ac_space=ac_space,
hid_size=64,
num_hid_layers=2)
env = make_mujoco_env(env_id, seed)
# parameters below were the best found in a simple random search
# these are good enough to make humanoid walk, but whether those are
# an absolute best or not is not certain
env = RewScale(env, 0.1)
logger.log(
"NOTE: reward will be scaled by a factor of 10 in logged stats. Check the monitor for unscaled reward."
)
pi = pposgd_simple.learn(
env,
policy_fn,
max_timesteps=num_timesteps,
timesteps_per_actorbatch=2048,
clip_param=0.1,
entcoeff=0.0,
optim_epochs=10,
optim_stepsize=1e-4,
optim_batchsize=64,
gamma=0.99,
lam=0.95,
schedule='constant',
)
env.close()
if model_path:
U.save_state(model_path)
return pi
def train(env_id, num_timesteps, seed):
env = make_mujoco_env(env_id, seed)
with tf.Session(config=tf.ConfigProto()):
ob_dim = env.observation_space.shape[0]
ac_dim = env.action_space.shape[0]
with tf.variable_scope("vf"):
vf = NeuralNetValueFunction(ob_dim, ac_dim)
with tf.variable_scope("pi"):
policy = GaussianMlpPolicy(ob_dim, ac_dim)
learn(env,
policy=policy,
vf=vf,
gamma=0.99,
lam=0.97,
timesteps_per_batch=2500,
desired_kl=0.002,
num_timesteps=num_timesteps,
animate=True)
env.close()
def train(env_id, num_timesteps, seed):
"""
train an ACKTR model on atari
:param env_id: (str) Environment ID
:param num_timesteps: (int) The total number of samples
:param seed: (int) The initial seed for training
"""
env = make_mujoco_env(env_id, seed)
with tf.Session(config=tf.ConfigProto()):
ob_dim = env.observation_space.shape[0]
ac_dim = env.action_space.shape[0]
with tf.variable_scope("vf"):
value_fn = NeuralNetValueFunction(ob_dim, ac_dim)
with tf.variable_scope("pi"):
policy = GaussianMlpPolicy(ob_dim, ac_dim)
learn(env, policy=policy, value_fn=value_fn, gamma=0.99, lam=0.97, timesteps_per_batch=2500, desired_kl=0.002,
num_timesteps=num_timesteps, animate=False)
env.close()
def main():
logger.configure()
parser = mujoco_arg_parser()
parser.add_argument('--model-path', default=os.path.join(logger.get_dir(), 'humanoid_policy'))
parser.set_defaults(num_timesteps=int(2e7))
args = parser.parse_args()
if not args.play:
# train the model
train(num_timesteps=args.num_timesteps, seed=args.seed, model_path=args.model_path)
else:
# construct the model object, load pre-trained model and render
pi = train(num_timesteps=1, seed=args.seed)
U.load_state(args.model_path)
env = make_mujoco_env('Humanoid-v2', seed=0)
ob = env.reset()
while True:
action = pi.act(stochastic=False, ob=ob)[0]
ob, _, done, _ = env.step(action)
env.render()
if done:
ob = env.reset()
