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Paddle/python/paddle/fluid/tests/unittests/multi_process.py

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2.8 KiB

# Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import sys
import time
def train(prefix):
selected_gpus = os.getenv("FLAGS_selected_gpus")
trainer_id = int(os.getenv("PADDLE_TRAINER_ID"))
worker_endpoints_env = os.getenv("PADDLE_TRAINER_ENDPOINTS")
current_endpoint = os.getenv("PADDLE_CURRENT_ENDPOINT")
worker_endpoints = worker_endpoints_env
trainers_num = len(worker_endpoints.split(','))
name = "selected_gpus:{} worker_endpoints:{} trainers_num:{} current_endpoint:{} trainer_id:{}"\
.format(selected_gpus, worker_endpoints, trainers_num, current_endpoint,trainer_id)
print(name)
with open("multi_process_{}.check_{}.log".format(prefix, trainer_id),
"w") as f:
f.write(name)
def train_abort(prefix):
selected_gpus = os.getenv("FLAGS_selected_gpus")
trainer_id = int(os.getenv("PADDLE_TRAINER_ID"))
worker_endpoints_env = os.getenv("PADDLE_TRAINER_ENDPOINTS")
current_endpoint = os.getenv("PADDLE_CURRENT_ENDPOINT")
worker_endpoints = worker_endpoints_env
trainers_num = len(worker_endpoints.split(','))
if trainer_id == 0:
try:
# train abort
exit(1)
except SystemExit:
name = "abort>>> selected_gpus:{} worker_endpoints:{} trainers_num:{} current_endpoint:{} trainer_id:{}"\
.format(selected_gpus, worker_endpoints, trainers_num, current_endpoint,trainer_id)
print(name)
with open(
"multi_process_{}.check_{}.log".format(prefix, trainer_id),
"w") as f:
f.write(name)
raise
else:
# sleep 30s to make sure paddle.distributed.launch will terminate this process
time.sleep(30)
name = "selected_gpus:{} worker_endpoints:{} trainers_num:{} current_endpoint:{} trainer_id:{}"\
.format(selected_gpus, worker_endpoints, trainers_num, current_endpoint,trainer_id)
print(name)
with open("multi_process_{}.check_{}.log".format(prefix, trainer_id),
"w") as f:
f.write(name)
if __name__ == '__main__':
if len(sys.argv) == 3 and sys.argv[2] == "abort":
prefix = sys.argv[1]
train_abort(prefix)
else:
prefix = sys.argv[1]
train(prefix)