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138 lines
5.1 KiB
138 lines
5.1 KiB
# Copyright (c) 2018 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 time
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import unittest
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import os
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import sys
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import signal
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import subprocess
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class TestDistBase(unittest.TestCase):
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def setUp(self):
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self._trainers = 2
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self._pservers = 2
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self._ps_endpoints = "127.0.0.1:9123,127.0.0.1:9124"
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self._python_interp = "python"
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def start_pserver(self, model_file):
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ps0_ep, ps1_ep = self._ps_endpoints.split(",")
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ps0_cmd = "%s %s pserver %s 0 %s %d TRUE" % \
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(self._python_interp, model_file, self._ps_endpoints, ps0_ep,
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self._trainers)
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ps1_cmd = "%s %s pserver %s 0 %s %d TRUE" % \
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(self._python_interp, model_file, self._ps_endpoints, ps1_ep,
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self._trainers)
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ps0_proc = subprocess.Popen(
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ps0_cmd.split(" "), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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ps1_proc = subprocess.Popen(
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ps1_cmd.split(" "), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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return ps0_proc, ps1_proc
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def _wait_ps_ready(self, pid):
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retry_times = 50
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while True:
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assert retry_times >= 0, "wait ps ready failed"
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time.sleep(3)
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try:
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# the listen_and_serv_op would touch a file which contains the listen port
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# on the /tmp directory until it was ready to process all the RPC call.
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os.stat("/tmp/paddle.%d.port" % pid)
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return
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except os.error as e:
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sys.stderr.write('waiting for pserver: %s, left retry %d\n' %
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(e, retry_times))
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retry_times -= 1
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def check_with_place(self, model_file, delta=1e-3):
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# *ATTENTION* THIS TEST NEEDS AT LEAST 2GPUS TO RUN
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required_envs = {
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"PATH": os.getenv("PATH"),
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"PYTHONPATH": os.getenv("PYTHONPATH"),
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"LD_LIBRARY_PATH": os.getenv("LD_LIBRARY_PATH"),
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"FLAGS_fraction_of_gpu_memory_to_use": "0.15"
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}
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# Run local to get a base line
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env_local = {"CUDA_VISIBLE_DEVICES": "0"}
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env_local.update(required_envs)
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local_cmd = "%s %s trainer %s 0 %s %d FLASE" % \
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(self._python_interp, model_file,
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"127.0.0.1:1234", "127.0.0.1:1234", 1)
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local_proc = subprocess.Popen(
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local_cmd.split(" "),
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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env=env_local)
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local_proc.wait()
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out, err = local_proc.communicate()
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local_ret = out
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sys.stderr.write('local_loss: %s\n' % local_ret)
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sys.stderr.write('local_stderr: %s\n' % err)
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# Run dist train to compare with local results
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ps0, ps1 = self.start_pserver(model_file)
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self._wait_ps_ready(ps0.pid)
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self._wait_ps_ready(ps1.pid)
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ps0_ep, ps1_ep = self._ps_endpoints.split(",")
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tr0_cmd = "%s %s trainer %s 0 %s %d TRUE" % \
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(self._python_interp, model_file, self._ps_endpoints, ps0_ep,
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self._trainers)
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tr1_cmd = "%s %s trainer %s 1 %s %d TRUE" % \
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(self._python_interp, model_file, self._ps_endpoints, ps1_ep,
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self._trainers)
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env0 = {"CUDA_VISIBLE_DEVICES": "0"}
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env1 = {"CUDA_VISIBLE_DEVICES": "1"}
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env0.update(required_envs)
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env1.update(required_envs)
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FNULL = open(os.devnull, 'w')
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tr0_proc = subprocess.Popen(
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tr0_cmd.split(" "),
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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env=env0)
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tr1_proc = subprocess.Popen(
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tr1_cmd.split(" "),
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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env=env1)
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tr0_proc.wait()
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tr1_proc.wait()
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out, err = tr0_proc.communicate()
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sys.stderr.write('dist_stderr: %s\n' % err)
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loss_data0 = out
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sys.stderr.write('dist_loss: %s\n' % loss_data0)
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lines = loss_data0.split("\n")
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dist_first_loss = eval(lines[0].replace(" ", ","))[0]
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dist_last_loss = eval(lines[1].replace(" ", ","))[0]
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local_lines = local_ret.split("\n")
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local_first_loss = eval(local_lines[0])[0]
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local_last_loss = eval(local_lines[1])[0]
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self.assertAlmostEqual(local_first_loss, dist_first_loss, delta=delta)
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self.assertAlmostEqual(local_last_loss, dist_last_loss, delta=delta)
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# check tr0_out
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# FIXME: ensure the server process is killed
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# replace with ps0.terminate()
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os.kill(ps0.pid, signal.SIGKILL)
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os.kill(ps1.pid, signal.SIGKILL)
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FNULL.close()
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