def __init__(self, *args, **kwargs):
self._shared_size = mp.Value(ctypes.c_long, 0)
ObsDictRelabelingBuffer.__init__(self, *args, **kwargs)
self._mp_array_info = {}
self._shared_obs_info = {}
self._shared_next_obs_info = {}
for obs_key, obs_arr in self._obs.items():
ctype = ctypes.c_double
if obs_arr.dtype == np.uint8:
ctype = ctypes.c_uint8
self._shared_obs_info[obs_key] = (
mp.Array(ctype, obs_arr.size),
obs_arr.dtype,
obs_arr.shape,
)
self._shared_next_obs_info[obs_key] = (
mp.Array(ctype, obs_arr.size),
obs_arr.dtype,
obs_arr.shape,
)
self._obs[obs_key] = to_np(*self._shared_obs_info[obs_key])
self._next_obs[obs_key] = to_np(
*self._shared_next_obs_info[obs_key])
self._register_mp_array("_actions")
self._register_mp_array("_terminals")
def __init__(self,
make_env,
array_dim,
batchsize,
max_q_size,
num_threads,
collate_fn,
epoch=0):
num_threads = max(num_threads, 1)
self.readyQs = [
mp.Queue(maxsize=max_q_size) for i in range(num_threads)
]
self.array_dim = array_dim
self.num_threads = num_threads
self.num_videos_per_thread = batchsize // num_threads
self.max_q_size = max_q_size
self.batchsize = batchsize
self.make_env = make_env
self.batch = np.zeros(
(self.num_threads, self.num_videos_per_thread, *array_dim),
dtype=np.float32)
array_dim2 = (self.max_q_size, self.num_videos_per_thread, *array_dim)
self.m_arrays = (mp.Array('f',
int(np.prod(array_dim2)),
lock=mp.Lock()) for _ in range(num_threads))
self.arrays = [(m, np.frombuffer(m.get_obj(),
dtype='f').reshape(array_dim2))
for m in self.m_arrays]
self.dataset = make_env(proc_id=0, num_procs=0, num_envs=0)
self.max_iter = self.dataset.max_iter
self.collate_fn = collate_fn
self.epoch = epoch
def test_main_process_unclean_exit(self):
'''There might be ConnectionResetError or leaked semaphore warning (due to dirty process exit), \
but they are all safe to ignore'''
worker_pids = mp.Array('i', [0] * 4)
manager_exit_event = mp.Event()
p = mp.Process(target=TestDataLoader._manager_process,
args=(self.dataset, worker_pids, manager_exit_event))
p.start()
manager_exit_event.wait()
exit_status = [False] * len(worker_pids)
start_time = time.time()
pname = 'python'
while True:
for i in range(len(worker_pids)):
pid = worker_pids[i]
if not exit_status[i]:
if not TestDataLoader._is_process_alive(pid, pname):
exit_status[i] = True
if all(exit_status):
break
else:
time.sleep(1)
self.assertFalse(time.time() - start_time > MANAGER_STATUS_CHECK_INTERVAL + JOIN_TIMEOUT,
'subprocess not terminated')
def remove_rejected(self):
# remove the indices belonging to samples that were rejected from the dataset
# this changes the length of the dataset
rejected = np.array(self.rejected[:])
self.index_mapping = np.argwhere(1 - rejected)[:, 0]
self.rejected = mp.Array('b', len(self))
# just in case of num_workers == 0
self.available_indices = None
def main():
params = Params()
mp.set_start_method('spawn')
lock = mp.Lock()
actions = mp.Array('i', [-1] * params.n_process, lock=lock)
count = mp.Value('i', 0)
best_acc = mp.Value('d', 0.0)
state_Queue = mp.JoinableQueue()
action_done = mp.SimpleQueue()
reward_Queue = mp.JoinableQueue()
# shared_model = A3C_LSTM_GA()
# shared_model = shared_model.share_memory()
#
# shared_optimizer = SharedAdam(shared_model.parameters(), lr=params.lr, amsgrad=params.amsgrad, weight_decay=params.weight_decay)
# shared_optimizer.share_memory()
#run_sim(0, params, shared_model, None, count, lock)
#test(params, shared_model, count, lock, best_acc)
processes = []
train_process = 0
test_process = 0
p = mp.Process(target=learning,
args=(
params,
state_Queue,
action_done,
actions,
reward_Queue,
))
p.start()
processes.append(p)
# test_process += 1
for rank in range(params.n_process):
p = mp.Process(target=run_sim,
args=(
train_process,
params,
state_Queue,
action_done,
actions,
reward_Queue,
lock,
))
train_process += 1
p.start()
processes.append(p)
for p in processes:
p.join()
def __init__(self, array_dim, max_q_size, num_videos_per_thread, dtype):
self.array_dim = array_dim
self.num_videos_per_thread = num_videos_per_thread
self.max_q_size = max_q_size
array_dim2 = (self.max_q_size, self.num_videos_per_thread, *array_dim)
mp_dtype = "f" if dtype == np.float32 else "b"
self.m = mp.Array(mp_dtype, int(np.prod(array_dim2)), lock=mp.Lock())
self.n = np.frombuffer(self.m.get_obj(),
dtype=dtype).reshape(array_dim2)
def __init__(self,
*datasets,
sync=False,
transforms=None,
rejection_dataset_indices,
rejection_criterion,
random_jump_after_reject=True):
"""
Parameters
----------
datasets : list or tuple
Datasets to zip.
sync : bool
Whether to synchronize zipped datasets if a synchronization primitive is available.
transforms : callable
Transforms to apply on the fetched batch.
rejection_dataset_indices : int or list or tuple
Indices (or index) corresponding to the datasets which are used to determine whether
a batch should be rejected.
rejection_criterion : callable
Criterion for rejection of batch. Must be a callable that accepts one or more
arrays / tensors and returns True if the corresponding batch should be rejected,
False otherwise. Should accept as many inputs as the number of elements in
`rejection_dataset_indices` if the latter is a list, and 1 otherwise. Note that
the order of the inputs to the `rejection_criterion` is the same as the order of
the indices in `rejection_dataset_indices`.
random_jump_after_reject: bool
Whether to try a random index or the rejected index incremented by one after rejection.
"""
super(ZipReject, self).__init__(*datasets,
sync=sync,
transforms=transforms)
for rejection_dataset_index in pyu.to_iterable(
rejection_dataset_indices):
assert_(
rejection_dataset_index < len(datasets),
"Index of the dataset to be used for rejection (= {}) is larger "
"than the number of datasets (= {}) minus one.".format(
rejection_dataset_index, len(datasets)), IndexError)
self.rejection_dataset_indices = pyu.to_iterable(
rejection_dataset_indices)
assert_(callable(rejection_criterion),
"Rejection criterion is not callable as it should be.",
TypeError)
# return true if fetched should be rejected
self.rejection_criterion = rejection_criterion
# Array shared over processes to keep track of which indices have been rejected
self.rejected = mp.Array('b', len(self))
self.available_indices = None
# optional index mapping to exclude rejected indices, reducing dataset size (see remove_rejected())
self.index_mapping = None
self.random_jump_after_reject = random_jump_after_reject
def __init__(self, array_dim, num_threads):
self.batch = np.zeros(
(self.num_threads, self.num_videos_per_thread, *array_dim),
dtype=np.float32)
array_dim2 = (self.max_q_size, self.num_videos_per_thread, *array_dim)
self.m_arrays = (mp.Array('f',
int(np.prod(array_dim2)),
lock=mp.Lock()) for _ in range(num_threads))
self.arrays = [(m, np.frombuffer(m.get_obj(),
dtype='f').reshape(array_dim2))
for m in self.m_arrays]
def _register_mp_array(self, arr_instance_var_name):
"""
Use this function to register an array to be shared. This will wipe arr.
"""
assert hasattr(self, arr_instance_var_name), arr_instance_var_name
arr = getattr(self, arr_instance_var_name)
ctype = ctypes.c_double
if arr.dtype == np.uint8:
ctype = ctypes.c_uint8
self._mp_array_info[arr_instance_var_name] = (
mp.Array(ctype, arr.size),
arr.dtype,
arr.shape,
)
setattr(self, arr_instance_var_name,
to_np(*self._mp_array_info[arr_instance_var_name]))
def test_main_process_unclean_exit(self):
r'''There might be ConnectionResetError or leaked semaphore warning (due to dirty process exit), \
but they are all safe to ignore'''
# `raise_error` controls if the main process is KILL-ed by OS or just
# simply raises an error. Both cases are interesting because
# 1. In case of it is KILL-ed by OS, the workers need to automatically
# discover that their parent is dead and exit gracefully.
# 2. In case of it raises an error itself, the parent process needs to
# take care of exiting the worker and then exits itself gracefully.
for raise_error in (True, False):
worker_pids = mp.Array('i', [0] * 4)
main_exit_event = mp.Event()
p = mp.Process(target=TestDataLoader._main_process,
args=(self.dataset, worker_pids, main_exit_event,
raise_error))
p.start()
worker_pids[-1] = p.pid
main_exit_event.wait()
exit_status = [False] * len(worker_pids)
start_time = time.time()
pname = 'python'
while True:
for i in range(len(worker_pids)):
pid = worker_pids[i]
if not exit_status[i]:
if not TestDataLoader._is_process_alive(pid, pname):
exit_status[i] = True
if all(exit_status):
break
else:
if time.time(
) - start_time > MANAGER_STATUS_CHECK_INTERVAL + JOIN_TIMEOUT:
self.fail('subprocess not terminated')
time.sleep(1)
p.join(MANAGER_STATUS_CHECK_INTERVAL + JOIN_TIMEOUT -
(time.time() - start_time))
self.assertFalse(p.is_alive(), 'main process not terminated')
# value_target = np.array(value_target)
# value_target = (value_target - value_target.min()) / (value_target.max() - value_target.min())
loss = l_net.loss_func(vwrap(np.vstack(bs)), vwrap(np.vstack(ba)),
vwrap(np.vstack(value_target)))
opt.zero_grad()
loss.backward()
for lp, gp in zip(l_net.parameters(), g_net.parameters()):
gp._grad = lp.grad
opt.step()
l_net.load_state_dict(g_net.state_dict())
if __name__ == "__main__":
g_net = Net(N_S, N_A)
g_net.share_memory()
opt = SharedAdam(g_net.parameters(), lr=ADAM_LR)
g_ep = mp.Value('i', 0)
g_rewards = mp.Array(ctypes.c_double, MAX_EP * 2)
workers = [
Worker(g_net, opt, g_ep, g_rewards, i) for i in range(mp.cpu_count())
]
[w.start() for w in workers]
[w.join() for w in workers]
save_rewards = np.frombuffer(g_rewards.get_obj())
plt.plot(save_rewards[:g_ep.value])
plt.show()
def mp_agent(args):
assert True, 'annotate the code in agent preceive'
if args.seed != -1:
torch.manual_seed(args.seed)
np.random.seed(args.seed)
if args.gpu and False:
device = torch.device('cuda:0' if torch.cuda.is_available() else 'cpu')
else:
device = torch.device('cpu')
# TensorboardX is incompatible with asynchronous event writing:
# https://github.com/lanpa/tensorboardX/issues/123
# writer = SummaryWriter()
writer = None
agent_population = []
for i_population in range(args.n_population):
agent_i = init_agent(args, device, writer, i_population)
agent_population.append(agent_i)
best_history_agent = init_agent(args, device, writer, args.n_population)
best_history = -100000
fitness_values = [0. for i in range(args.n_process)]
fitness_values = torch_mp.Array('f', fitness_values)
done_signals = torch_mp.Array(
'i', [0 for i in range(args.n_process)]) # as a compromise
share_signals = torch_mp.Value('i', 0)
collected_exp = []
evo = Evolution(args)
for i_process in range(args.n_process): # change to population:
q = torch_mp.Queue() # change according to local_interval
collected_exp.append(q)
for i_generation in range(args.n_generation):
processes = []
done_signals[:] = [0 for i in range(args.n_process)]
share_signals.value = 0
for i_process in range(args.n_process):
p = torch_mp.Process(
target=train_agent,
args=(args, agent_population[i_process], i_process, i_process,
i_generation, device, fitness_values,
collected_exp[i_process], done_signals, share_signals))
p.start()
processes.append(p)
# for p in processes:
# p.join()
while not all(done_signals[:]):
# continues to check
time.sleep(1)
for i_process in range(args.n_process):
q = collected_exp[i_process]
q_counter = 0
while q.qsize() > 0:
q_counter += 1
state, action, mask, next_state, reward = q.get()
for agent_i in agent_population:
agent_i.preceive(state, action, mask, next_state, reward)
if q_counter % agent_i.eval_env.spec.timestep_limit == 0:
agent_i.reset_storage()
share_signals.value = 1
time.sleep(2) # wait for the subprocess to close
all_fitness = fitness_values[:]
best_pop_fitness = max(all_fitness)
best_index = all_fitness.index(max(all_fitness))
if best_history < best_pop_fitness:
best_history = best_pop_fitness
best_history_agent.copy_model_mp(agent_population[best_index])
print('eval_performance:', best_history_agent.eval_performance())
for i_fitness in range(len(all_fitness)): # manual syncs
# change to your own environment
if all_fitness[i_fitness] < best_history + best_history * 0.1:
agent_population[i_fitness].copy_model_mp(best_history_agent)
# evo.next_g(agent_population, all_fitness)
evo.torch_next_g(agent_population, all_fitness)
if writer:
writer.close()
if __name__ == '__main__':
os.system('cls')
vis.close()
num_processes = 1
shared_queue = mp.Queue()
shared_state = dict()
shared_state["p"] = Actor(s_dim, a_dim, dev).share_memory()
shared_state["q"] = QCritic(s_dim, a_dim, dev).share_memory()
shared_state["v"] = VCritic(s_dim, a_dim, dev).share_memory()
shared_state["update"] = mp.Array('i', [0 for i in range(num_processes)])
# shared_state["wait"] = mp.Array('i', [0 for i in range(num_processes)])
shared_state["vis"] = mp.Value('i', 0)
shared_state["wait"] = mp.Value('i', 0)
shared_state["wait"].value = start_frame * 10
act = actor_worker(0, num_frames, shared_state, shared_queue, 0.1, False)
act.run()
act.run()
act.run()
lea = learner_worker(1, num_frames, shared_state, shared_queue, False)
lea.push_buffer()
lea.push_buffer()
lea.push_buffer()
# for i in range(100):
torch.save({'model': net.state_dict(), 'best_idx': best_idx,
'opt': optimizer.state_dict()}, file_name)
print("Net evaluation started")
net.eval()
if os.name == 'nt' and args.cuda:
cd = torch.device("cpu")
net.to(cd)
best_net.to(cd)
cpuf = True
else: cpuf = False
mp.set_start_method("spawn", force=True)
lock = mp.Lock()
processes = [];
mar = mp.Array('i', 3);
mar[0] = 1
for i in range(NUM_PROC):
p = mp.Process(target=eval, args=(mar, lock, net, best_net, device, cpuf), daemon=True)
p.start()
processes.append(p)
while 1:
lock.acquire()
if mar[0] > 0 and (mar[1] >= EVALUATION_ROUNDS*BEST_NET_WIN_RATIO or
mar[2]>EVALUATION_ROUNDS*(1-BEST_NET_WIN_RATIO)):
mar[0] = 0
lock.release()
running = any(p.is_alive() for p in processes)
if not running:
break
time.sleep(0.5)
def test_proper_exit(self):
(r'''There might be ConnectionResetError or leaked semaphore warning '''
r'''(due to dirty process exit), but they are all safe to ignore''')
# TODO: test the case where the pin_memory_thread triggers an
# error/fatal signal. I haven't found out how to properly do that.
# Array to store the worker pids.
worker_pids = mp.Array('i', [-1 for _ in range(10)])
def wait_pids(pids, timeout):
r"""Wait for all process specified in pids to exit in given timeout."""
exit_status = [False for _ in pids]
start_time = time.time()
pname = 'python'
while True:
for i in range(len(pids)):
pid = pids[i]
if not exit_status[i]:
if not TestDataLoader._is_process_alive(pid, pname):
exit_status[i] = True
if all(exit_status):
break
else:
if time.time() - start_time > timeout:
break
time.sleep(0.5)
return exit_status
for use_workers, pin_memory, hold_iter_reference in itertools.product(
[True, False], repeat=3):
# `hold_iter_reference` specifies whether we hold a reference to the
# iterator. This is interesting because Python3 error traces holds a
# reference to the frames, which hold references to all the local
# variables including the iterator, and then the iterator dtor may
# not be called before process end. It is important to see that the
# processes still exit in both cases.
if pin_memory and (not TEST_CUDA or NO_MULTIPROCESSING_SPAWN):
# Can't use CUDA without spawn
continue
# `exit_method` controls the way the loader process ends.
# - `*_kill` means that `*` is killed by OS.
# - `*_error` means that `*` raises an error.
# - `None` means that no error happens.
# In all cases, all processes should end properly.
if use_workers:
exit_methods = [
None, 'main_error', 'main_kill', 'worker_kill',
'worker_error'
]
else:
exit_methods = [None, 'main_error', 'main_kill']
for exit_method in exit_methods:
# clear pids array first
for i in range(len(worker_pids)):
worker_pids[i] = -1
# Event that the loader process uses to signal testing process
# that various things are setup, including that the worker pids
# are specified in `worker_pids` array.
setup_event = mp.Event()
p = ErrorTrackingProcess(
target=_test_proper_exit,
args=(use_workers, pin_memory, exit_method,
hold_iter_reference, worker_pids, setup_event))
p.start()
# Wait for loader process to set everything up, i.e., filling
# worker pids in `worker_pids`.
setup_event.wait(timeout=JOIN_TIMEOUT)
self.assertTrue(setup_event.is_set(),
'loader process setup timed out')
pids = [pid for pid in worker_pids if pid > 0]
try:
exit_status = wait_pids(pids,
timeout=(MP_STATUS_CHECK_INTERVAL +
JOIN_TIMEOUT))
if not all(exit_status):
self.fail(
'subprocess (pid(s) {}) not terminated'.format(
', '.join(
p for p, exited in zip(pids, exit_status)
if not exited)))
p.join(JOIN_TIMEOUT + MP_STATUS_CHECK_INTERVAL)
self.assertFalse(p.is_alive(),
'loader process not terminated')
if exit_method is None:
self.assertEqual(p.exitcode, 0)
else:
self.assertNotEqual(p.exitcode, 0)
finally:
p.terminate()
type=int,
default=3,
help='number of channels of output data')
parser.add_argument('--cuda',
type=bool,
default=True,
help='use GPU computation')
parser.add_argument(
'--n_cpu',
type=int,
default=16,
help='number of cpu threads to use during batch generation')
opt = parser.parse_args()
population = 32
current_fitness_base_A2B = mp.Array('f', range(population))
current_fitness_A2B = np.asarray(current_fitness_base_A2B.get_obj(),
dtype=np.float32)
current_fitness_base_B2A = mp.Array('f', range(population))
current_fitness_B2A = np.asarray(current_fitness_base_B2A.get_obj(),
dtype=np.float32)
# Lossess
criterion_GAN = torch.nn.MSELoss()
criterion_cycle = torch.nn.L1Loss()
criterion_identity = torch.nn.L1Loss()
def caculate_fitness_for_first_time(mask_input, gpu_id, fitness_id,
A2B_or_B2A):
if '-' not in command:
target_ids = [int(i.strip()) for i in command.split(",")]
else:
target_ids = list(
range(int(command.split('-')[0]),
int(command.split('-')[1]) + 1))
chosen_objects = [
all_visible_objects[target_id] for target_id in target_ids
]
check_phase = lambda c: 'train' if os.path.isfile(
os.path.join(args.folder, "net_{}.pth".format(c))
) else 'test'
chosen_phases = [check_phase(c) for c in chosen_objects]
results = mp.Array('f', len(chosen_objects))
processes = []
for rank, obj in enumerate(chosen_objects):
p = mp.Process(target=test, args=(training_scene, obj, rank, shared_model, \
results, config, arguments))
p.start()
processes.append(p)
for p in processes:
p.join()
print("Testing accuracies:",
list(zip(chosen_objects, chosen_phases, results[:])))
else:
arguments['test'] = 1
best_idx=best_idx,
url=URL,
username=username,
device=device)
game_nodes = len(mcts_store)
dt = time.time() - t
speed_steps = game_steps / dt
speed_nodes = game_nodes / dt
step_idx += 1
print(
"Step %d, steps %3d, leaves %4d, steps/s %5.2f, leaves/s %6.2f, best_idx %d"
% (step_idx, game_steps, game_nodes, speed_steps,
speed_nodes, best_idx))
else:
processes = []
mar = mp.Array('i', 2)
mar[0] = 1
for i in range(num_proc):
mcts_store = mcts.MCTS()
p = mp.Process(target=play,
args=(mar, lock, mcts_store, net, best_idx,
username, device, step_idx),
daemon=True)
p.start()
processes.append(p)
while 1:
lock.acquire()
if mar[0] > 0 and mar[1] >= PLAY_EPISODE * num_proc: mar[0] = 0
lock.release()
running = any(p.is_alive() for p in processes)
if not running:
env.observation_space.shape[0], env.action_space)
shared_model.share_memory()
if args.no_shared:
optimizer = None
else:
optimizer = my_optim.SharedAdam(shared_model.parameters(), lr=args.lr)
optimizer.share_memory()
processes = []
counter = mp.Value('i', 0)
num_done = mp.Value('i', 0)
num_episode = mp.Value('i', 0)
reward_sum = mp.Value('i', 0)
arr = mp.Array('i', [])
lock = mp.Lock()
writer = SummaryWriter("logs/fig"+str(args.gae_lambda1)+"_"+ str(args.gae_lambda2), max_queue = 1)
p = mp.Process(target=test, args=(args.num_processes, args, shared_model, counter, num_done, num_episode, reward_sum, lock))
p.start()
processes.append(p)
def write(a,b,c):
i = 0
while counter.value < 120000000:
print(a.value, b.value, c.value, counter.value / 10000)
writer.add_scalar("test/reward", a.value, counter.value / 10000)
writer.add_scalar("train/rate", b.value * 1.0 / c.value, counter.value / 10000)
i = i + 1
time.sleep(10)
for rank in range(0, args.num_processes):
def train(self, train_steps, eval_every_sec, eval_episodes, goal=None):
"""
Train agent for given number of steps.
:param train_steps: number of steps to train agent
:param eval_every_sec: evaluate agent every `eval_every_sec` seconds
:param eval_episodes: number of episode to evaluate agent for
:param goal: goal which can terminate training if it is reached
:return: result
"""
# Set one thread per core
os.environ['OMP_NUM_THREADS'] = '1'
# Flag indicating that training is finished
stop_flag = mp.Event()
# Number of steps for each worker
workers_train_steps = int(train_steps / self.num_processes)
# Workers' current steps
workers_steps = mp.Array('i', self.num_processes)
# Queue where the final result is put
result_queue = mp.Queue()
processes = []
start = timer()
# Create and start evaluation process
eval_process = EvalProcess(
env_fn_serialized=serialize(self.env_fn),
agent=self.agent,
seed=self.seed +
self.num_processes if self.seed is not None else None,
train_steps=train_steps,
eval_every_sec=eval_every_sec,
eval_episodes=eval_episodes,
goal_serialized=serialize(goal),
stop_flag=stop_flag,
workers_steps=workers_steps,
result_queue=result_queue)
eval_process.start()
processes.append(eval_process)
# Create and start worker processes
for worker in self.agent.create_workers(self.num_processes):
worker_process = WorkerProcess(
env_fn_serialized=serialize(self.env_fn),
worker=worker,
seed=self.seed +
worker.worker_id if self.seed is not None else None,
train_steps=workers_train_steps,
workers_steps=workers_steps,
stop_flag=stop_flag)
worker_process.start()
processes.append(worker_process)
# Wait until all processes finish execution
[process.join() for process in processes]
# Get result from queue
result = result_queue.get()
result.train_time = timer() - start
return result