File size: 1,182 Bytes
aa048fe | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | # Copyright 2025 the LlamaFactory team.
#
# 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
from contextlib import contextmanager
@contextmanager
def dist_env(local_rank: int = 0, world_size: int = 1, master_port: int = 25595):
"""Set distributed environment variables."""
env_vars = {
"MASTER_ADDR": "127.0.0.1",
"MASTER_PORT": str(master_port),
"RANK": str(local_rank),
"LOCAL_RANK": str(local_rank),
"WORLD_SIZE": str(world_size),
"LOCAL_WORLD_SIZE": str(world_size),
}
os.environ.update(env_vars)
try:
yield
finally:
for key in env_vars.keys():
os.environ.pop(key, None)
|