def generate_fake_multiagent_batch(env, policies):
multi_agent_batch_builder = MultiAgentSampleBatchBuilder(
policy_map={
player: policy for player, policy in zip(env.players_ids, policies)
},
clip_rewards=False,
callbacks=DefaultCallbacks(),
)
fake_actions = generate_fake_discrete_actions(env)
env.reset()
observations, rewards, done, info = env.step(fake_actions)
for player_id in env.players_ids:
step_player_values = {
"eps_id": 0,
"obs": observations[player_id],
"new_obs": observations[player_id],
"actions": fake_actions[player_id],
"prev_actions": fake_actions[player_id],
"rewards": rewards[player_id],
"prev_rewards": rewards[player_id],
"dones": True,
}
multi_agent_batch_builder.add_values(
agent_id=player_id, policy_id=player_id, **step_player_values
)
multiagent_batch = multi_agent_batch_builder.build_and_reset()
return multiagent_batch
def get_fake_training_batch_for_ppo_in_ipd(policy):
policy_id = "fake_player"
players = {policy_id: policy}
multi_agent_batch_builder = MultiAgentSampleBatchBuilder(
policy_map={
player_id: player
for player_id, player in players.items()
},
clip_rewards=False,
callbacks=DefaultCallbacks(),
)
n_steps_in_epi = 20
for step_n in range(n_steps_in_epi):
step_player_values = {
SampleBatch.EPS_ID: 0,
SampleBatch.OBS: 0,
SampleBatch.NEXT_OBS: 0,
SampleBatch.ACTIONS: 0,
SampleBatch.REWARDS: random.randint(0, 10),
SampleBatch.PREV_REWARDS: random.randint(0, 10),
SampleBatch.VF_PREDS: random.randint(0, 10),
SampleBatch.DONES: step_n == n_steps_in_epi - 1,
SampleBatch.ACTION_DIST_INPUTS: [random.random(),
random.random()],
SampleBatch.ACTION_LOGP: random.random(),
}
multi_agent_batch_builder.add_values(agent_id=policy_id,
policy_id=policy_id,
**step_player_values)
multiagent_batch = multi_agent_batch_builder.build_and_reset()
return multiagent_batch.policy_batches[policy_id]
class AdaptiveMechanismDesign(tune.Trainable):
def _init_algo(self, fear, greed, n_players, use_simple_agents,
action_flip_prob, max_reward_strength, value_fn_variant,
cost_param, with_redistribution, n_planning_eps, env_config,
n_units, n_episodes, env, lr, gamma, weight_decay,
loss_mul_planner, mean_theta, with_planner, std_theta,
add_state_grad, planner_momentum, planner_clip_norm,
entropy_coeff, seed, normalize_planner,
no_weights_decay_planner, planner_std_theta_mul,
use_adam_optimizer, use_softmax_hot, report_every_n,
momentum, weight_decay_pl_mul, square_cost,
normalize_against_v, use_v_pl, normalize_against_vp,
normalize_vp_separated, use_rllib_polcy, **kwargs):
if not use_simple_agents:
speed_ratio = 5.0
lr = lr / speed_ratio
loss_mul_planner = loss_mul_planner * speed_ratio**2 / 2 / 2
cost_param = cost_param * 1.5
if n_units == 64:
lr = lr / 8
print("args not used:", kwargs)
convert_a_to_one_hot = not use_simple_agents
np.random.seed(seed)
tf.set_random_seed(seed)
random.seed(seed)
if env == "FearGreedMatrix":
env = define_greed_fear_matrix_game(fear=fear,
greed=greed)(env_config)
elif env == "CoinGame":
env = CoinGame(env_config)
env.seed(seed=seed)
agents = create_population(env,
n_players,
use_simple_agents=use_simple_agents,
n_units=n_units,
lr=lr,
gamma=gamma,
weight_decay=weight_decay,
mean_theta=mean_theta,
std_theta=std_theta,
entropy_coeff=entropy_coeff,
use_adam_optimizer=use_adam_optimizer,
momentum=momentum,
use_rllib_polcy=use_rllib_polcy)
np.random.seed(seed + 1)
tf.set_random_seed(seed + 1)
random.seed(seed + 1)
if with_planner:
std_theta = std_theta * planner_std_theta_mul
weight_decay = weight_decay * weight_decay_pl_mul
if no_weights_decay_planner:
weight_decay = 0.0
planning_agent = Planning_Agent(
env,
agents,
learning_rate=lr,
max_reward_strength=max_reward_strength,
cost_param=cost_param,
with_redistribution=with_redistribution,
value_fn_variant=value_fn_variant,
n_units=n_units,
weight_decay=weight_decay,
convert_a_to_one_hot=convert_a_to_one_hot,
loss_mul_planner=loss_mul_planner,
mean_theta=mean_theta,
std_theta=std_theta,
planner_clip_norm=planner_clip_norm,
normalize_planner=normalize_planner,
add_state_grad=add_state_grad,
planner_momentum=planner_momentum,
use_adam_optimizer=use_adam_optimizer,
use_softmax_hot=use_softmax_hot,
square_cost=square_cost,
normalize_against_v=normalize_against_v,
use_v_pl=use_v_pl,
normalize_against_vp=normalize_against_vp,
normalize_vp_separated=normalize_vp_separated)
else:
planning_agent = None
self.epi_n = 0
self.players = agents
self.env = env
self.action_flip_prob = action_flip_prob
self.planning_agent = planning_agent
self.with_redistribution = with_redistribution
self.n_planning_eps = n_planning_eps
self.player_ids = env.players_ids
self.n_players = n_players
self.n_episodes = n_episodes
self.max_reward_strength = max_reward_strength
self.cost_param = cost_param
self.value_fn_variant = value_fn_variant
self.fear = fear
self.greed = greed
self.report_every_n = report_every_n
self.normalize_vp_separated = normalize_vp_separated
self.use_rllib_polcy = use_rllib_polcy
self.avg_planning_rewards_per_round = []
self.episode_reward = []
self.training_epi_avg_reward = []
if self.use_rllib_polcy:
self.multi_agent_batch_builder = MultiAgentSampleBatchBuilder(
policy_map={
idx: player
for idx, player in enumerate(self.players)
},
clip_rewards=False,
callbacks=DefaultCallbacks())
def setup(self, config):
print("_init_algo", config)
self._init_algo(**config)
def step(self):
(loss, cost, extra_loss, g_V, planning_rs, mean_v, mean_vp,
planning_reward_when_pick_own_coin,
planning_reward_when_pick_opp_coin, planning_reward_when_no_picking,
planning_reward_when_specific_action) = [None] * 11
for _ in range(self.report_every_n):
self.epi_n += 1
to_report = {"episodes_total": self.epi_n}
s_rllib_format = self.env.reset()
obs_before_act = convert_from_rllib_env_format(
s_rllib_format,
self.player_ids,
state=True,
n_states=self.env.n_features,
coin_game=self.env.NAME == "CoinGame",
)
flag = isinstance(obs_before_act, list)
cum_planning_rs = [0] * len(self.players)
planning_reward_when_pick_own_coin = [None] * len(self.players)
planning_reward_when_pick_opp_coin = [None] * len(self.players)
planning_reward_when_no_picking = [None] * len(self.players)
planning_reward_when_specific_action = [
[None] * self.env.NUM_ACTIONS
] * len(self.players)
if self.use_rllib_polcy:
prev_r = [0.0] * len(self.players)
prev_a = [0] * len(self.players)
done = False
while not done:
# choose action based on s
if self.use_rllib_polcy:
actions = [
player.compute_actions(obs_before_act[None, ...])[0][0]
for player in self.players
]
else:
if flag:
actions = [
player.choose_action(obs_before_act[idx])
for idx, player in enumerate(self.players)
]
else:
actions = [
player.choose_action(obs_before_act)
for player in self.players
]
actions_rllib_format = convert_to_rllib_env_format(
actions,
self.player_ids,
coin_game=self.env.NAME == "CoinGame")
# take action and get next s and reward
s_rllib_format, rewards_rllib_format, done_rllib_format, info_rllib_format = self.env.step(
actions_rllib_format)
obs_after_act = convert_from_rllib_env_format(
s_rllib_format,
self.player_ids,
state=True,
n_states=self.env.n_features,
coin_game=self.env.NAME == "CoinGame")
rewards = convert_from_rllib_env_format(
rewards_rllib_format, self.player_ids)
done = convert_from_rllib_env_format(done_rllib_format,
self.player_ids)
self.episode_reward.append(rewards)
# perturbed_actions = [(1 - a if np.random.binomial(1, self.action_flip_prob) else a) for a in actions]
# Make it work for discrete action space of N
perturbed_actions = []
for a in actions:
if np.random.binomial(1, self.action_flip_prob):
perturbed_a = a
while perturbed_a == a:
perturbed_a = random.randint(
0, self.env.n_features - 1)
print("perturbed_a == a", perturbed_a, a,
perturbed_a == a)
else:
perturbed_actions.append(a)
# print("perturbed_actions", perturbed_actions)
env_rewards = rewards
if self.planning_agent is not None and self.epi_n < self.n_planning_eps:
planning_rs = self.planning_agent.choose_action(
obs_before_act, perturbed_actions)
if self.with_redistribution:
sum_planning_r = sum(planning_rs)
mean_planning_r = sum_planning_r / self.n_players
planning_rs = [
r - mean_planning_r for r in planning_rs
]
rewards = [sum(r) for r in zip(rewards, planning_rs)]
cum_planning_rs = [
sum(r) for r in zip(cum_planning_rs, planning_rs)
]
# Training planning agent
# TODO using the past rewards is not working since I perturbate the actions
(action, loss, g_Vp, g_V, r_players, cost, extra_loss, l1,
mean_v, vp, values, mean_vp) = self.planning_agent.learn(
obs_before_act,
perturbed_actions,
coin_game=self.env.NAME == "CoinGame",
env_rewards=env_rewards)
for idx, player in enumerate(self.players):
if self.use_rllib_polcy:
step_player_values = {
"eps_id":
self.epi_n,
"obs":
obs_before_act, # [None,...]
"new_obs":
obs_after_act,
"actions":
actions[idx],
"prev_actions":
prev_a[idx],
"rewards":
rewards[idx],
"prev_rewards":
prev_r[idx],
"dones":
done,
"vf_preds":
player._value(obs_before_act, prev_a[idx],
prev_r[idx])
}
self.multi_agent_batch_builder.add_values(
agent_id=idx, policy_id=idx, **step_player_values)
else:
if flag:
critic_loss, advantage = player.learn(
obs_before_act[idx], actions[idx],
rewards[idx], obs_after_act[idx],
obs_before_act, obs_after_act)
else:
critic_loss, advantage = player.learn(
obs_before_act, actions[idx], rewards[idx],
obs_after_act)
to_report[f"critic_loss_p_{idx}"] = critic_loss[0, 0]
to_report[f"advantage_loss_p_{idx}"] = advantage
if self.planning_agent is not None:
opp_idx = (idx + 1) % 2
if env_rewards[idx] == 1.0 and env_rewards[
opp_idx] == 0.0:
planning_reward_when_pick_own_coin[
idx] = planning_rs[idx]
if env_rewards[idx] == 1.0 and env_rewards[
opp_idx] == -2.0:
planning_reward_when_pick_opp_coin[
idx] = planning_rs[idx]
if env_rewards[idx] == 0.0 and env_rewards[
opp_idx] == 0.0:
planning_reward_when_no_picking[idx] = planning_rs[
idx]
planning_reward_when_specific_action[idx][
actions[idx]] = planning_rs[idx]
if self.use_rllib_polcy and done:
multiagent_batch = self.multi_agent_batch_builder.build_and_reset(
)
for idx, player in enumerate(self.players):
stats = player.learn_on_batch(
multiagent_batch.policy_batches[idx])
# Does slow down the training
# for k, v in stats["learner_stats"].items():
# to_report[f"p{idx}_{k}"] = v
prev_r = rewards
prev_a = actions
elif done:
for player in self.players:
player.learn_at_episode_end()
# swap s
obs_before_act = obs_after_act
if self.planning_agent is not None and self.epi_n < self.n_planning_eps:
self.avg_planning_rewards_per_round.append([
r / self.env.step_count_in_current_episode
for r in cum_planning_rs
])
epi_rewards = np.array(self.episode_reward)
self.training_epi_avg_reward.append(np.mean(epi_rewards, axis=0))
self.episode_reward.clear()
to_report = self._add_info_to_log(
to_report, actions_rllib_format, info_rllib_format, epi_rewards,
loss, cost, extra_loss, g_V, planning_rs, mean_v, mean_vp,
planning_reward_when_pick_own_coin,
planning_reward_when_pick_opp_coin,
planning_reward_when_no_picking,
planning_reward_when_specific_action)
return to_report
def _add_info_to_log(self, to_report, actions_rllib_format,
info_rllib_format, epi_rewards, loss, cost,
extra_loss, g_V, planning_rs, mean_v, mean_vp,
planning_reward_when_pick_own_coin,
planning_reward_when_pick_opp_coin,
planning_reward_when_no_picking,
planning_reward_when_specific_action):
for k, v in actions_rllib_format.items():
to_report[f"act_{k}"] = v
to_report.update(info_rllib_format)
to_report["mean_reward_p1"] = np.mean(epi_rewards, axis=0)[0]
to_report["mean_reward_p2"] = np.mean(epi_rewards, axis=0)[1]
to_report["mean_reward"] = np.sum(np.mean(epi_rewards, axis=0))
if self.planning_agent is not None:
to_report[f"loss_planner"] = loss
to_report[f"loss_pl_grad"] = cost
to_report[f"loss_rew_cost"] = extra_loss
to_report[f"g_V"] = g_V
planner_weights_norm = self.planning_agent.get_weights_norm()
to_report[f"planner_weights_norm"] = planner_weights_norm
to_report["planning_reward_player1"] = planning_rs[0]
to_report["planning_reward_player2"] = planning_rs[1]
to_report["mean_v"] = mean_v
if not self.normalize_vp_separated:
to_report["mean_vp"] = mean_vp
else:
to_report["mean_vp0"] = mean_vp[0]
to_report["mean_vp1"] = mean_vp[1]
for idx, player in enumerate(self.players):
if not self.use_rllib_polcy:
ac_weights_norm, cr_weights_norm = player.get_weights_norm()
to_report[f"actor_weights_norm_p_{idx}"] = ac_weights_norm
to_report[f"critic_weights_norm_p_{idx}"] = cr_weights_norm
if planning_reward_when_pick_own_coin[idx] is not None:
to_report[
f"pl_rw_p{idx}_pick_own_coin"] = planning_reward_when_pick_own_coin[
idx]
if planning_reward_when_pick_opp_coin[idx] is not None:
to_report[
f"pl_rw_p{idx}_pick_opp_coin"] = planning_reward_when_pick_opp_coin[
idx]
if planning_reward_when_no_picking[idx] is not None:
to_report[
f"pl_rw_p{idx}_no_picking"] = planning_reward_when_no_picking[
idx]
for act_v in range(self.env.NUM_ACTIONS):
if planning_reward_when_specific_action[idx][
act_v] is not None:
to_report[
f"pl_rw_p{idx}_a{act_v}"] = planning_reward_when_specific_action[
idx][act_v]
return to_report
