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71 changes: 26 additions & 45 deletions python/paddle_edl/distill/distill_reader.py
Original file line number Diff line number Diff line change
Expand Up @@ -90,14 +90,12 @@ def __init__(self, ins, predicts):
self._task_semaphore = None

# predict worker args
self._predict_worker = None
self._predict_server_queue = None
self._predict_server_result_queue = None
self._working_predict_count = None
self._predict_out_queue = None
self._predict_stop_events = None
self._predict_lock = None
self._predict_finished_task = None
self._predict_cond = None
self._predict_stop_event = None
# predict worker pool
self._predict_manage_thread = None
self._predict_manage_stop_event = None
Expand Down Expand Up @@ -154,53 +152,37 @@ def _start_reader_worker(self):
with self._reader_cond:
self._reader_cond.notify()

def _start_predict_worker(self):
process = []
for i in range(self._require_num):
worker = mps.Process(
target=distill_worker.predict_worker,
args=(
self._predict_server_queue,
self._predict_server_result_queue,
self._working_predict_count,
self._reader_out_queue,
self._predict_out_queue,
self._feeds,
self._fetchs,
self._serving_conf_file,
self._predict_stop_events,
self._predict_lock,
self._predict_finished_task,
self._predict_cond, ))
worker.daemon = True
worker.start()
process.append(worker)
return process

def _start_predict_worker_pool(self):
def _start_predict_process(self):
if not self._is_predict_start:
# start predict worker pool
process = self._start_predict_worker()
self._predict_stop_event = mps.Event()
predict_process = mps.Process(
target=distill_worker.predict_process,
args=(self._predict_server_queue,
self._predict_server_result_queue,
self._reader_out_queue, self._predict_out_queue,
self._feeds, self._fetchs, self._serving_conf_file,
self._predict_stop_event, self._predict_cond))
predict_process.daemon = True
predict_process.start()
self._predict_worker = predict_process

self._predict_manage_stop_event = threading.Event()
self._predict_manage_thread = threading.Thread(
target=distill_worker.predict_manage_worker,
args=(
process,
self._predict_server_queue,
self._predict_server_result_queue,
self._require_num,
self._predict_stop_events,
self._get_servers,
self._predict_manage_stop_event,
self._predict_cond, ))
self._predict_manage_stop_event, ))
self._predict_manage_thread.daemon = True
self._predict_manage_thread.start()

self._is_predict_start = True
else:
# wake up predict worker pool
# wake up predict process
with self._predict_cond:
self._predict_cond.notify_all()
self._predict_cond.notify()

def _init_args(self):
if not self._is_args_init:
Expand All @@ -211,18 +193,12 @@ def _init_args(self):
self._reader_out_queue = mps.Queue()
self._reader_stop_event = mps.Event()
self._reader_cond = mps.Condition()
self._task_semaphore = mps.Semaphore(2 * self._require_num + 2)
self._task_semaphore = mps.Semaphore(4 * self._require_num)

# predict
self._predict_server_queue = mps.Queue(self._require_num)
self._predict_server_result_queue = mps.Queue(self._require_num)
self._working_predict_count = mps.Value('i', 0, lock=False)
self._predict_out_queue = mps.Queue()
self._predict_stop_events = [
mps.Event() for i in range(self._require_num)
]
self._predict_lock = mps.Lock()
self._predict_finished_task = mps.Value('i', 0, lock=False)
self._predict_cond = mps.Condition()

# fetch
Expand Down Expand Up @@ -343,7 +319,7 @@ def print_config(self):
'teacher_service_name': self._service_name,
'reader_type': self._reader_type,
}
for config, value in print_config.iteritems():
for config, value in print_config.items():
print("%s: %s" % (config, value))
print("------------------------------------------------")

Expand All @@ -365,7 +341,8 @@ def __call__(self):
# >>> there will only be thread 2 and the lock will be held forever.
# So need to move start_predict_worker_pool to the end if we use logging in predict
# manager thread, or for the sake of safety, don't use logging?
self._start_predict_worker_pool()
# self._start_predict_worker_pool()
self._start_predict_process()

for data in distill_worker.fetch_out(
self._reader_type, self._predict_out_queue,
Expand All @@ -383,6 +360,10 @@ def __del__(self):

self._predict_manage_stop_event.set()

self._predict_stop_event.set()
with self._predict_cond:
self._predict_cond.notify()

for i in range(20):
if self._reader_worker.is_alive() or \
self._predict_manage_thread.is_alive():
Expand Down
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