# Copyright 2025 Alibaba Group Holding Limited. 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 argparse
from datetime import timedelta

import torch.distributed as dist

parser = argparse.ArgumentParser(description="Barrier")
parser.add_argument(
    '--timeout', type=int, default=None,
    help="Timeout in minutes"
)

def main():
    args = parser.parse_args()

    if args.timeout is not None:
        timeout = timedelta(minutes=args.timeout)
    else:
        timeout = None

    dist.init_process_group(backend="nccl", timeout=timeout)
    dist.destroy_process_group()

if __name__ == '__main__':
    main()
