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131 lines
3.8 KiB
131 lines
3.8 KiB
# Copyright (c) 2020 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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from __future__ import print_function
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import unittest
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import os
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import time
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import copy
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import subprocess
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import paddle.fluid as fluid
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from paddle.distributed.utils import find_free_ports, watch_local_trainers, get_cluster, TrainerProc
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def get_cluster_from_args(selected_gpus):
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cluster_node_ips = '127.0.0.1'
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node_ip = '127.0.0.1'
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node_ips = [x.strip() for x in cluster_node_ips.split(',')]
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node_ips.index(node_ip)
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free_ports = None
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free_ports = find_free_ports(len(selected_gpus))
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if free_ports is not None:
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free_ports = list(free_ports)
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return get_cluster(node_ips, node_ip, free_ports, selected_gpus)
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def get_gpus(selected_gpus):
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selected_gpus = [x.strip() for x in selected_gpus.split(',')]
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return selected_gpus
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def start_local_trainers(cluster,
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pod,
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training_script,
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training_script_args,
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log_dir=None):
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current_env = copy.copy(os.environ.copy())
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#paddle broadcast ncclUniqueId use socket, and
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#proxy maybe make trainers unreachable, so delete them.
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#if we set them to "", grpc will log error message "bad uri"
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#so just delete them.
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current_env.pop("http_proxy", None)
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current_env.pop("https_proxy", None)
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procs = []
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for t in pod.trainers:
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proc_env = {
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"FLAGS_selected_gpus": "%s" % ",".join([str(g) for g in t.gpus]),
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"PADDLE_TRAINER_ID": "%d" % t.rank,
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"PADDLE_CURRENT_ENDPOINT": "%s" % t.endpoint,
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"PADDLE_TRAINERS_NUM": "%d" % cluster.trainers_nranks(),
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"PADDLE_TRAINER_ENDPOINTS": ",".join(cluster.trainers_endpoints())
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}
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current_env.update(proc_env)
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print("trainer proc env:{}".format(current_env))
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if os.getenv('WITH_COVERAGE', 'OFF') == 'ON':
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cmd = "python -m coverage run --branch -p " + training_script
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else:
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cmd = "python -u " + training_script
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print("start trainer proc:{} env:{}".format(cmd, proc_env))
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fn = None
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proc = subprocess.Popen(cmd.split(" "), env=current_env)
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tp = TrainerProc()
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tp.proc = proc
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tp.rank = t.rank
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tp.log_fn = fn
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tp.cmd = cmd
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procs.append(tp)
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return procs
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class TestMultipleGpus(unittest.TestCase):
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def run_mnist_2gpu(self, target_file_name):
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if fluid.core.get_cuda_device_count() == 0:
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return
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selected_gpus = get_gpus('0,1')
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cluster = None
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pod = None
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cluster, pod = get_cluster_from_args(selected_gpus)
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procs = start_local_trainers(
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cluster,
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pod,
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training_script=target_file_name,
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training_script_args=[])
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while True:
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alive = watch_local_trainers(procs, cluster.trainers_nranks())
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if not alive:
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print("Local procs complete, POD info:{}".format(pod))
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break
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time.sleep(3)
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def test_hapi_multiple_gpus_static(self):
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self.run_mnist_2gpu('dist_hapi_mnist_static.py')
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def test_hapi_multiple_gpus_dynamic(self):
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self.run_mnist_2gpu('dist_hapi_mnist_dynamic.py')
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if __name__ == "__main__":
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unittest.main()
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