wehub-resource-sync
90 lines
2.7 KiB
Python
90 lines
2.7 KiB
Python
# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import signal
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import sys
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from paddle.distributed.fleet.launch_utils import DistributeMode # noqa: F401
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from .collective import CollectiveLauncher
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from .manager import (
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ELASTIC_EXIT_CODE,
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ElasticLevel, # noqa: F401
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ElasticManager,
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ElasticStatus,
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)
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def enable_elastic(args, distribute_mode):
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# elastic_level = os.getenv('PADDLE_ELASTIC_FAULT_TOLERANC_LEVEL')
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# if not elastic_level and (elastic_level != ElasticLevel.FAULT_TOLERANCE and
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# elastic_level != ElasticLevel.ELASTIC):
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# return False
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# if distribute_mode != DistributeMode.COLLECTIVE:
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# return False
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if not args.elastic_server and not os.getenv('PADDLE_ELASTIC_SERVER'):
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return False
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if not args.job_id and not os.getenv('PADDLE_ELASTIC_JOB_ID'):
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return False
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if not args.np and not os.getenv('PADDLE_ELASTIC_NP'):
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return False
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return True
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def launch_elastic(args, distribute_mode):
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server = args.elastic_server or os.getenv('PADDLE_ELASTIC_SERVER')
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srv, port = server.split(':')
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import etcd3
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etcd_client = etcd3.client(host=srv, port=port)
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elastic = ElasticManager(args, etcd_client)
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signal.signal(signal.SIGTERM, elastic.signal_handler)
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signal.signal(signal.SIGABRT, elastic.signal_handler)
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signal.signal(signal.SIGINT, elastic.signal_handler)
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while True:
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# wait for all nodes ready to run
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elastic.wait()
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# execute pre hook action, eg: run shell
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elastic.pre_hook()
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# run self with specified launcher
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elastic.run(CollectiveLauncher)
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# keep wathing the health status of self and being notified for other's failure
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ret = elastic.watch()
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if ret == ElasticStatus.COMPLETED:
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break
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if ret == ElasticStatus.HOLD:
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continue
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if ret == ElasticStatus.EXIT:
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break
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if ret == ElasticStatus.ERROR:
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sys.exit(3)
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if ret == ElasticStatus.RESTART:
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sys.exit(ELASTIC_EXIT_CODE)
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if int(elastic.sigint) > 0:
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sys.exit(128 + int(elastic.sigint))
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else:
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sys.exit(0)
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