def run_MCTS(args, start_idx=0, iteration=0):
net_to_play="%s_iter%d.pth.tar" % (args.neural_net_name, iteration)
net = ConnectNet()
cuda = torch.cuda.is_available()
if cuda:
net.cuda()
if args.MCTS_num_processes > 1:
logger.info("Preparing model for multi-process MCTS...")
mp.set_start_method("spawn",force=True)
net.share_memory()
net.eval()
current_net_filename = os.path.join("./model_data/",\
net_to_play)
if os.path.isfile(current_net_filename):
checkpoint = torch.load(current_net_filename)
net.load_state_dict(checkpoint['state_dict'])
logger.info("Loaded %s model." % current_net_filename)
else:
torch.save({'state_dict': net.state_dict()}, os.path.join("./model_data/",\
net_to_play))
logger.info("Initialized model.")
processes = []
if args.MCTS_num_processes > mp.cpu_count():
num_processes = mp.cpu_count()
logger.info("Required number of processes exceed number of CPUs! Setting MCTS_num_processes to %d" % num_processes)
else:
num_processes = args.MCTS_num_processes
logger.info("Spawning %d processes..." % num_processes)
with torch.no_grad():
for i in range(num_processes):
p = mp.Process(target=MCTS_self_play, args=(net, args.num_games_per_MCTS_process,
start_idx, i, args, iteration))
p.start()
processes.append(p)
for p in processes:
p.join()
logger.info("Finished multi-process MCTS!")
elif args.MCTS_num_processes == 1:
logger.info("Preparing model for MCTS...")
net.eval()
current_net_filename = os.path.join("./model_data/",\
net_to_play)
if os.path.isfile(current_net_filename):
checkpoint = torch.load(current_net_filename)
net.load_state_dict(checkpoint['state_dict'])
logger.info("Loaded %s model." % current_net_filename)
else:
torch.save({'state_dict': net.state_dict()}, os.path.join("./model_data/",\
net_to_play))
logger.info("Initialized model.")
with torch.no_grad():
MCTS_self_play(net, args.num_games_per_MCTS_process, start_idx, 0, args, iteration)
logger.info("Finished MCTS!")
def play_ia(game, options):
made_moves, convertedMatrix = convert_matrix_to_alpha_zero(game)
print(convertedMatrix)
#########################################################################
# AlphaZero
#########################################################################
#best_net="c4_current_net_trained2_iter7.pth.tar"
best_net="c4_current_net_trained_iter8.pth.tar"
best_net_filename = os.path.join("C:\\Users\\Francesco\\Documents\\2_Schule\\HYU\\HYU-software-engineering-AI\\src_backend\\src\\ai_modules\\AlphaZero_Connect4\\src\\model_data\\", best_net)
best_cnet = ConnectNet()
cuda = torch.cuda.is_available()
if cuda:
best_cnet.cuda()
best_cnet.eval()
checkpoint = torch.load(best_net_filename)
best_cnet.load_state_dict(checkpoint['state_dict'])
net = best_cnet
white = None
black = net
current_board = cboard()
current_board.current_board = np.array(convertedMatrix)
checkmate = False
dataset = []
value = 0; t = 0.1; moves_count = made_moves
moves_count += 1
dataset.append(copy.deepcopy(ed.encode_board(current_board)))
print("AI is thinking.............")
root = UCT_search(current_board,777,black,t)
policy = get_policy(root, t)
current_board = do_decode_n_move_pieces(current_board, np.random.choice(np.array([0,1,2,3,4,5,6]), p = policy)) # decode move and move piece(s)
print(current_board.current_board); print(" ")
return find_which_move_ai_made(convertedMatrix, current_board.current_board)
def evaluate_nets(args, iteration_1, iteration_2):
logger.info("Loading nets...")
current_net = "%s_iter%d.pth.tar" % (args.neural_net_name, iteration_2)
best_net = "%s_iter%d.pth.tar" % (args.neural_net_name, iteration_1)
current_net_filename = os.path.join("./model_data/",\
current_net)
best_net_filename = os.path.join("./model_data/",\
best_net)
logger.info("Current net: %s" % current_net)
logger.info("Previous (Best) net: %s" % best_net)
current_cnet = ConnectNet()
best_cnet = ConnectNet()
cuda = torch.cuda.is_available()
if cuda:
current_cnet.cuda()
best_cnet.cuda()
if not os.path.isdir("./evaluator_data/"):
os.mkdir("evaluator_data")
if args.MCTS_num_processes > 1:
mp.set_start_method("spawn", force=True)
current_cnet.share_memory()
best_cnet.share_memory()
current_cnet.eval()
best_cnet.eval()
checkpoint = torch.load(current_net_filename)
current_cnet.load_state_dict(checkpoint['state_dict'])
checkpoint = torch.load(best_net_filename)
best_cnet.load_state_dict(checkpoint['state_dict'])
processes = []
if args.MCTS_num_processes > mp.cpu_count():
num_processes = mp.cpu_count()
logger.info(
"Required number of processes exceed number of CPUs! Setting MCTS_num_processes to %d"
% num_processes)
else:
num_processes = args.MCTS_num_processes
logger.info("Spawning %d processes..." % num_processes)
with torch.no_grad():
for i in range(num_processes):
p = mp.Process(target=fork_process,
args=(arena(current_cnet, best_cnet),
args.num_evaluator_games, i))
p.start()
processes.append(p)
for p in processes:
p.join()
wins_ratio = 0.0
for i in range(num_processes):
stats = load_pickle("wins_cpu_%i" % (i))
wins_ratio += stats['best_win_ratio']
wins_ratio = wins_ratio / num_processes
if wins_ratio >= 0.55:
return iteration_2
else:
return iteration_1
elif args.MCTS_num_processes == 1:
current_cnet.eval()
best_cnet.eval()
checkpoint = torch.load(current_net_filename)
current_cnet.load_state_dict(checkpoint['state_dict'])
checkpoint = torch.load(best_net_filename)
best_cnet.load_state_dict(checkpoint['state_dict'])
arena1 = arena(current_cnet=current_cnet, best_cnet=best_cnet)
arena1.evaluate(num_games=args.num_evaluator_games, cpu=0)
stats = load_pickle("wins_cpu_%i" % (0))
if stats.best_win_ratio >= 0.55:
return iteration_2
else:
return iteration_1
dataset.append('Human as white wins')
print("YOU WIN!!!!!!!!!!!")
else:
dataset.append('AI as white wins')
print("YOU LOSE!!!!!!!")
return "white", dataset
else:
dataset.append("Nobody wins")
print("DRAW!!!!!")
return None, dataset
if __name__ == "__main__":
best_net="c4_current_net_trained1_iter6.pth.tar"
best_net_filename = os.path.join("./model_data/",\
best_net)
best_cnet = ConnectNet()
if cuda := torch.cuda.is_available():
best_cnet.cuda()
best_cnet.eval()
checkpoint = torch.load(best_net_filename)
best_cnet.load_state_dict(checkpoint['state_dict'])
play_again = True
while play_again:
play_game(best_cnet)
while True:
again = input("Do you wanna play again? (Y/N)\n")
if again.lower() in ["y", "n"]:
if again.lower() == "n":
play_again = False
break
current_net)
best_net_filename = os.path.join("./model_data/",\
best_net)
current_cnet = ConnectNet()
best_cnet = ConnectNet()
cuda = torch.cuda.is_available()
if cuda:
current_cnet.cuda()
best_cnet.cuda()
if multiprocessing == 1:
mp.set_start_method("spawn", force=True)
current_cnet.share_memory()
best_cnet.share_memory()
current_cnet.eval()
best_cnet.eval()
checkpoint = torch.load(current_net_filename)
current_cnet.load_state_dict(checkpoint['state_dict'])
checkpoint = torch.load(best_net_filename)
best_cnet.load_state_dict(checkpoint['state_dict'])
processes = []
for i in range(6):
p = mp.Process(target=fork_process,
args=(arena(current_cnet, best_cnet), 10, i))
p.start()
processes.append(p)
for p in processes:
p.join()
"dataset_cpu%i_%i_%s" %
(cpu, idxx, datetime.datetime.today().strftime("%Y-%m-%d")),
dataset_p)
if __name__ == "__main__":
multiprocessing = 1
if multiprocessing == 1:
net_to_play = "c4_current_net_trained2_iter5.pth.tar"
mp.set_start_method("spawn", force=True)
net = ConnectNet()
cuda = torch.cuda.is_available()
if cuda:
net.cuda()
net.share_memory()
net.eval()
print("hi")
# torch.save({'state_dict': net.state_dict()}, os.path.join("./model_data/",\
# "c4_current_net.pth.tar"))
current_net_filename = os.path.join("./model_data/",\
net_to_play)
checkpoint = torch.load(current_net_filename)
net.load_state_dict(checkpoint['state_dict'])
processes = []
for i in range(6):
p = mp.Process(target=MCTS_self_play, args=(net, 25, i))
p.start()
processes.append(p)
for p in processes:
p.join()