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Johann Schleier-Smith
c9bc488ee0
* redirect process output to log files * formatting fixes * Generate all log files in start_ray_processes. * Fix bug.
48 lines
2.0 KiB
Python
48 lines
2.0 KiB
Python
from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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import os
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import subprocess
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import time
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def start_global_scheduler(redis_address, use_valgrind=False,
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use_profiler=False, stdout_file=None,
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stderr_file=None):
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"""Start a global scheduler process.
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Args:
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redis_address (str): The address of the Redis instance.
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use_valgrind (bool): True if the global scheduler should be started inside
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of valgrind. If this is True, use_profiler must be False.
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use_profiler (bool): True if the global scheduler should be started inside a
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profiler. If this is True, use_valgrind must be False.
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stdout_file: A file handle opened for writing to redirect stdout to. If no
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redirection should happen, then this should be None.
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stderr_file: A file handle opened for writing to redirect stderr to. If no
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redirection should happen, then this should be None.
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Return:
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The process ID of the global scheduler process.
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"""
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if use_valgrind and use_profiler:
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raise Exception("Cannot use valgrind and profiler at the same time.")
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global_scheduler_executable = os.path.join(os.path.abspath(os.path.dirname(__file__)), "../core/src/global_scheduler/global_scheduler")
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command = [global_scheduler_executable, "-r", redis_address]
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if use_valgrind:
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pid = subprocess.Popen(["valgrind",
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"--track-origins=yes",
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"--leak-check=full",
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"--show-leak-kinds=all",
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"--error-exitcode=1"] + command,
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stdout=stdout_file, stderr=stderr_file)
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time.sleep(1.0)
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elif use_profiler:
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pid = subprocess.Popen(["valgrind", "--tool=callgrind"] + command,
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stdout=stdout_file, stderr=stderr_file)
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time.sleep(1.0)
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else:
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pid = subprocess.Popen(command, stdout=stdout_file, stderr=stderr_file)
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time.sleep(0.1)
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return pid
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