import os import typing import logging import traceback import numpy as np from collections import Counter import time from douzero.radam.radam import RAdam import torch from torch import multiprocessing as mp from .env_utils import Environment from douzero.env import Env Card2Column = {3: 0, 4: 1, 5: 2, 6: 3, 7: 4, 8: 5, 9: 6, 10: 7, 11: 8, 12: 9, 13: 10, 14: 11, 17: 12} NumOnes2Array = {0: np.array([0, 0, 0, 0]), 1: np.array([1, 0, 0, 0]), 2: np.array([1, 1, 0, 0]), 3: np.array([1, 1, 1, 0]), 4: np.array([1, 1, 1, 1])} shandle = logging.StreamHandler() shandle.setFormatter( logging.Formatter( '[%(levelname)s:%(process)d %(module)s:%(lineno)d %(asctime)s] ' '%(message)s')) log = logging.getLogger('doudzero') log.propagate = False log.addHandler(shandle) log.setLevel(logging.INFO) # Buffers are used to transfer data between actor processes # and learner processes. They are shared tensors in GPU Buffers = typing.Dict[str, typing.List[torch.Tensor]] def create_env(flags): return Env(flags.objective) def get_batch(b_queues, position, flags, lock): """ This function will sample a batch from the buffers based on the indices received from the full queue. It will also free the indices by sending it to full_queue. """ b_queue = b_queues[position] buffer = [] while len(buffer) < flags.batch_size: buffer.append(b_queue.get()) batch = { key: torch.stack([m[key] for m in buffer], dim=1) for key in ["done", "episode_return", "target", "obs_z", "obs_x_batch", "obs_type"] } del buffer return batch def create_optimizers(flags, learner_model): """ Create three optimizers for the three positions """ positions = ['landlord', 'landlord_up', 'landlord_down', 'bidding'] optimizers = {} for position in positions: optimizer = RAdam( learner_model.parameters(position), lr=flags.learning_rate, eps=flags.epsilon) optimizers[position] = optimizer return optimizers def act(i, device, batch_queues, model, flags): positions = ['landlord', 'landlord_up', 'landlord_down', 'bidding'] for pos in positions: model.models[pos].to(torch.device(device if device == "cpu" else ("cuda:"+str(device)))) try: T = flags.unroll_length log.info('Device %s Actor %i started.', str(device), i) env = create_env(flags) env = Environment(env, device) done_buf = {p: [] for p in positions} episode_return_buf = {p: [] for p in positions} target_buf = {p: [] for p in positions} obs_z_buf = {p: [] for p in positions} size = {p: 0 for p in positions} type_buf = {p: [] for p in positions} obs_x_batch_buf = {p: [] for p in positions} position_index = {"landlord": 31, "landlord_up": 32, "landlord_down": 33} bid_type_index = {"landlord": 41, "landlord_up": 42, "landlord_down": 43} bid_type_map = {41: "landlord", 42: "landlord_up", 43: "landlord_down"} position, obs, env_output = env.initial(model, device, flags=flags) bid_obs_buffer = env_output["begin_buf"]["bid_obs_buffer"] multiply_obs_buffer = env_output["begin_buf"]["multiply_obs_buffer"] while True: # print("posi", position) for bid_obs in bid_obs_buffer: obs_z_buf["bidding"].append(bid_obs['z_batch']) obs_x_batch_buf["bidding"].append(bid_obs["x_batch"]) type_buf["bidding"].append(bid_type_index[bid_obs["position"]]) size["bidding"] += 1 for mul_obs in multiply_obs_buffer: obs_z_buf[mul_obs["position"]].append(mul_obs['z_batch']) obs_x_batch_buf[mul_obs["position"]].append(mul_obs["x_batch"]) type_buf[mul_obs["position"]].append(2) size[mul_obs["position"]] += 1 while True: with torch.no_grad(): agent_output = model.forward(position, obs['z_batch'], obs['x_batch'], flags=flags) _action_idx = int(agent_output['action'].cpu().detach().numpy()) action = obs['legal_actions'][_action_idx] obs_z_buf[position].append(torch.vstack((_cards2tensor(action).unsqueeze(0), env_output['obs_z'])).float()) # x_batch = torch.cat((env_output['obs_x_no_action'], _cards2tensor(action)), dim=0).float() x_batch = env_output['obs_x_no_action'].float() obs_x_batch_buf[position].append(x_batch) type_buf[position].append(position_index[position]) position, obs, env_output = env.step(action, model, device, flags=flags) size[position] += 1 if env_output['done']: bid_obs_buffer = env_output["begin_buf"]["bid_obs_buffer"] multiply_obs_buffer = env_output["begin_buf"]["multiply_obs_buffer"] for p in positions: diff = size[p] - len(target_buf[p]) # print(p, diff) if diff > 0: done_buf[p].extend([False for _ in range(diff-1)]) done_buf[p].append(True) if p != "bidding": episode_return = env_output['episode_return']["play"][p] if p == 'landlord' else -env_output['episode_return']["play"][p] episode_return_buf[p].extend([0.0 for _ in range(diff-1)]) episode_return_buf[p].append(episode_return) target_buf[p].extend([episode_return for _ in range(diff)]) else: offset = len(target_buf[p]) for index in range(diff): pos = type_buf[p][index+offset] if pos == 41: episode_return = env_output['episode_return']["bid"]["landlord"] else: episode_return = -env_output['episode_return']["bid"][bid_type_map[pos]] episode_return_buf[p].append(episode_return) # print(p, episode_return) target_buf[p].append(episode_return) break for p in positions: if size[p] > T: # print(p, "epr", torch.stack([torch.tensor(ndarr, device="cpu") for ndarr in episode_return_buf[p][:T]]),) batch_queues[p].put({ "done": torch.stack([torch.tensor(ndarr, device="cpu") for ndarr in done_buf[p][:T]]), "episode_return": torch.stack([torch.tensor(ndarr, device="cpu") for ndarr in episode_return_buf[p][:T]]), "target": torch.stack([torch.tensor(ndarr, device="cpu") for ndarr in target_buf[p][:T]]), "obs_z": torch.stack([torch.tensor(ndarr, device="cpu") for ndarr in obs_z_buf[p][:T]]), "obs_x_batch": torch.stack([torch.tensor(ndarr, device="cpu") for ndarr in obs_x_batch_buf[p][:T]]), "obs_type": torch.stack([torch.tensor(ndarr, device="cpu") for ndarr in type_buf[p][:T]]) }) done_buf[p] = done_buf[p][T:] episode_return_buf[p] = episode_return_buf[p][T:] target_buf[p] = target_buf[p][T:] obs_x_batch_buf[p] = obs_x_batch_buf[p][T:] obs_z_buf[p] = obs_z_buf[p][T:] type_buf[p] = type_buf[p][T:] size[p] -= T except KeyboardInterrupt: pass except Exception as e: log.error('Exception in worker process %i', i) traceback.print_exc() print() raise e def _cards2tensor(list_cards): """ Convert a list of integers to the tensor representation See Figure 2 in https://arxiv.org/pdf/2106.06135.pdf """ if len(list_cards) == 0: return torch.zeros(54, dtype=torch.int8) matrix = np.zeros([4, 13], dtype=np.int8) jokers = np.zeros(2, dtype=np.int8) counter = Counter(list_cards) for card, num_times in counter.items(): if card < 20: matrix[:, Card2Column[card]] = NumOnes2Array[num_times] elif card == 20: jokers[0] = 1 elif card == 30: jokers[1] = 1 matrix = np.concatenate((matrix.flatten('F'), jokers)) matrix = torch.from_numpy(matrix) return matrix