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# Copyright (c) 2018-2020. The SimGrid Team. All rights reserved.
#
# This program is free software you can redistribute it and/or modify it
# under the terms of the license (GNU LGPL) which comes with this package.
from simgrid import Actor, Engine, Host, this_actor
import sys
class Waiter:
""" This actor simply waits for its task completion after starting it. That's exactly equivalent to synchronous execution. """
def __call__(self):
computation_amount = this_actor.get_host().speed
this_actor.info("Waiter executes {:.0f} flops, should take 1 second.".format(computation_amount))
activity = this_actor.exec_init(computation_amount)
activity.start()
activity.wait()
this_actor.info("Goodbye from waiter!")
class Monitor:
"""This actor tests the ongoing execution until its completion, and don't wait before it's terminated."""
def __call__(self):
computation_amount = this_actor.get_host().speed
this_actor.info("Monitor executes {:.0f} flops, should take 1 second.".format(computation_amount))
activity = this_actor.exec_init(computation_amount).start()
while not activity.test():
this_actor.info("Remaining amount of flops: {:.0f} ({:.0f}%)".format(
activity.remaining, 100 * activity.remaining_ratio))
this_actor.sleep_for(0.3)
activity.wait()
this_actor.info("Goodbye from monitor!")
class Canceller:
"""This actor cancels the ongoing execution after a while."""
def __call__(self):
computation_amount = this_actor.get_host().speed
this_actor.info("Canceller executes {:.0f} flops, should take 1 second.".format(computation_amount))
activity = this_actor.exec_init(computation_amount).start()
this_actor.sleep_for(0.5)
this_actor.info("I changed my mind, cancel!")
activity.cancel()
this_actor.info("Goodbye from canceller!")
if __name__ == '__main__':
e = Engine(sys.argv)
if len(sys.argv) < 2:
raise AssertionError("Usage: exec-async.py platform_file [other parameters]")
e.load_platform(sys.argv[1])
Actor.create("wait", Host.by_name("Fafard"), Waiter())
Actor.create("monitor", Host.by_name("Ginette"), Monitor())
Actor.create("cancel", Host.by_name("Boivin"), Canceller())
e.run()
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