def train(self, epis):
traj = Traj(ddp=True, traj_device=self.device)
traj.add_epis(epis)
traj = ef.compute_vs(traj, self.vf)
traj = ef.compute_rets(traj, args.gamma)
traj = ef.compute_advs(traj, args.gamma, args.lam)
traj = ef.centerize_advs(traj)
traj = ef.compute_h_masks(traj)
traj.register_epis()
result_dict = ppo_clip.train(traj=traj,
pol=self.ddp_pol,
vf=self.ddp_vf,
clip_param=self.args.clip_param,
optim_pol=self.optim_pol,
optim_vf=self.optim_vf,
epoch=self.args.epoch_per_iter,
batch_size=self.args.batch_size,
max_grad_norm=self.args.max_grad_norm,
log_enable=self.rank == 0)
result_dict["traj_num_step"] = traj.num_step
result_dict["traj_num_epi"] = traj.num_epi
return result_dict
def test_learning_rnn(self):
pol_net = PolNetLSTM(
self.env.observation_space, self.env.action_space, h_size=32, cell_size=32)
pol = GaussianPol(self.env.observation_space,
self.env.action_space, pol_net, rnn=True)
vf_net = VNetLSTM(self.env.observation_space, h_size=32, cell_size=32)
vf = DeterministicSVfunc(self.env.observation_space, vf_net, rnn=True)
sampler = EpiSampler(self.env, pol, num_parallel=1)
optim_pol = torch.optim.Adam(pol_net.parameters(), 3e-4)
optim_vf = torch.optim.Adam(vf_net.parameters(), 3e-4)
epis = sampler.sample(pol, max_steps=400)
traj = Traj()
traj.add_epis(epis)
traj = ef.compute_vs(traj, vf)
traj = ef.compute_rets(traj, 0.99)
traj = ef.compute_advs(traj, 0.99, 0.95)
traj = ef.centerize_advs(traj)
traj = ef.compute_h_masks(traj)
traj.register_epis()
result_dict = ppo_clip.train(traj=traj, pol=pol, vf=vf, clip_param=0.2,
optim_pol=optim_pol, optim_vf=optim_vf, epoch=1, batch_size=2)
result_dict = ppo_kl.train(traj=traj, pol=pol, vf=vf, kl_beta=0.1, kl_targ=0.2,
optim_pol=optim_pol, optim_vf=optim_vf, epoch=1, batch_size=2, max_grad_norm=20)
del sampler
def test_learning(self):
pol_net = PolNet(self.env.ob_space, self.env.ac_space, h1=32, h2=32)
pol = CategoricalPol(self.env.ob_space, self.env.ac_space, pol_net)
vf_net = VNet(self.env.ob_space, h1=32, h2=32)
vf = DeterministicSVfunc(self.env.ob_space, vf_net)
sampler = EpiSampler(self.env, pol, num_parallel=1)
optim_pol = torch.optim.Adam(pol_net.parameters(), 3e-4)
optim_vf = torch.optim.Adam(vf_net.parameters(), 3e-4)
epis = sampler.sample(pol, max_steps=32)
traj = Traj()
traj.add_epis(epis)
traj = ef.compute_vs(traj, vf)
traj = ef.compute_rets(traj, 0.99)
traj = ef.compute_advs(traj, 0.99, 0.95)
traj = ef.centerize_advs(traj)
traj = ef.compute_h_masks(traj)
traj.register_epis()
result_dict = ppo_clip.train(traj=traj, pol=pol, vf=vf, clip_param=0.2,
optim_pol=optim_pol, optim_vf=optim_vf, epoch=1, batch_size=32)
result_dict = ppo_kl.train(traj=traj, pol=pol, vf=vf, kl_beta=0.1, kl_targ=0.2,
optim_pol=optim_pol, optim_vf=optim_vf, epoch=1, batch_size=32, max_grad_norm=10)
del sampler
traj = ef.compute_rets(traj, args.gamma)
traj = ef.compute_advs(traj, args.gamma, args.lam)
traj = ef.centerize_advs(traj)
traj = ef.compute_h_masks(traj)
traj.register_epis()
if args.data_parallel:
pol.dp_run = True
vf.dp_run = True
if args.ppo_type == 'clip':
result_dict = ppo_clip.train(traj=traj,
pol=pol,
vf=vf,
clip_param=args.clip_param,
optim_pol=optim_pol,
optim_vf=optim_vf,
epoch=args.epoch_per_iter,
batch_size=args.batch_size if
not args.rnn else args.rnn_batch_size,
max_grad_norm=args.max_grad_norm)
else:
result_dict = ppo_kl.train(traj=traj,
pol=pol,
vf=vf,
kl_beta=kl_beta,
kl_targ=args.kl_targ,
optim_pol=optim_pol,
optim_vf=optim_vf,
epoch=args.epoch_per_iter,
batch_size=args.batch_size if
not args.rnn else args.rnn_batch_size,
on_traj = Traj()
on_traj.add_epis(epis)
on_traj = ef.add_next_obs(on_traj)
on_traj = ef.compute_vs(on_traj, vf)
on_traj = ef.compute_rets(on_traj, args.gamma)
on_traj = ef.compute_advs(on_traj, args.gamma, args.lam)
on_traj = ef.centerize_advs(on_traj)
on_traj = ef.compute_h_masks(on_traj)
on_traj.register_epis()
result_dict1 = ppo_clip.train(traj=on_traj,
pol=pol,
vf=vf,
clip_param=args.clip_param,
optim_pol=optim_pol,
optim_vf=optim_vf,
epoch=args.epoch_per_iter,
batch_size=args.batch_size,
max_grad_norm=args.max_grad_norm)
total_epi += on_traj.num_epi
step = on_traj.num_step
total_step += step
off_traj.add_traj(on_traj)
result_dict2 = sac.train(
off_traj,
pol,
[qf],
def train(self):
args = self.args
# TODO: cuda seems to be broken, I don't care about it right now
# if args.cuda:
# # current_obs = current_obs.cuda()
# rollouts.cuda()
self.train_start_time = time.time()
total_epi = 0
total_step = 0
max_rew = -1e6
sampler = None
score_file = os.path.join(self.logger.get_logdir(), "progress.csv")
logger.add_tabular_output(score_file)
num_total_frames = args.num_total_frames
mirror_function = None
if args.mirror_tuples and hasattr(self.env.unwrapped,
"mirror_indices"):
mirror_function = get_mirror_function(
**self.env.unwrapped.mirror_indices)
num_total_frames *= 2
if not args.tanh_finish:
warnings.warn(
"When `mirror_tuples` is `True`,"
" `tanh_finish` should be set to `True` as well."
" Otherwise there is a chance of the training blowing up.")
while num_total_frames > total_step:
# setup the correct curriculum learning environment/parameters
new_curriculum = self.curriculum_handler(total_step /
args.num_total_frames)
if total_step == 0 or new_curriculum:
if sampler is not None:
del sampler
sampler = EpiSampler(
self.env,
self.pol,
num_parallel=self.args.num_processes,
seed=self.args.seed + total_step, # TODO: better fix?
)
with measure("sample"):
epis = sampler.sample(self.pol,
max_steps=args.num_steps *
args.num_processes)
with measure("train"):
with measure("epis"):
traj = Traj()
traj.add_epis(epis)
traj = ef.compute_vs(traj, self.vf)
traj = ef.compute_rets(traj, args.decay_gamma)
traj = ef.compute_advs(traj, args.decay_gamma,
args.gae_lambda)
traj = ef.centerize_advs(traj)
traj = ef.compute_h_masks(traj)
traj.register_epis()
if mirror_function:
traj.add_traj(mirror_function(traj))
# if args.data_parallel:
# self.pol.dp_run = True
# self.vf.dp_run = True
result_dict = ppo_clip.train(
traj=traj,
pol=self.pol,
vf=self.vf,
clip_param=args.clip_eps,
optim_pol=self.optim_pol,
optim_vf=self.optim_vf,
epoch=args.epoch_per_iter,
batch_size=args.batch_size
if not args.rnn else args.rnn_batch_size,
max_grad_norm=args.max_grad_norm,
)
# if args.data_parallel:
# self.pol.dp_run = False
# self.vf.dp_run = False
## append the metrics to the `results_dict` (reported in the progress.csv)
result_dict.update(self.get_extra_metrics(epis))
total_epi += traj.num_epi
step = traj.num_step
total_step += step
rewards = [np.sum(epi["rews"]) for epi in epis]
mean_rew = np.mean(rewards)
logger.record_results(
self.logger.get_logdir(),
result_dict,
score_file,
total_epi,
step,
total_step,
rewards,
plot_title=args.env,
)
if mean_rew > max_rew:
self.save_models("max")
max_rew = mean_rew
self.save_models("last")
self.scheduler_pol.step()
self.scheduler_vf.step()
del traj
traj = Traj()
traj.add_epis(epis)
# calulate advantage
traj = ef.compute_vs(traj, vf)
traj = ef.compute_rets(traj, gamma)
traj = ef.compute_advs(traj, gamma, lam)
traj = ef.centerize_advs(traj)
traj = ef.compute_h_masks(traj)
traj.register_epis()
result_dict = ppo_clip.train(traj=traj,
pol=pol,
vf=vf,
clip_param=clip_param,
optim_pol=optim_pol,
optim_vf=optim_vf,
epoch=epoch_per_iter,
batch_size=batch_size,
max_grad_norm=max_grad_norm)
# update counter and record
total_epi += traj.num_epi
step = traj.num_step
total_step += step
rewards = [np.sum(epi['rews']) for epi in epis]
mean_rew = np.mean(rewards)
logger.record_results(log_dir_name,
result_dict,
score_file,
total_epi,
step,
