1 # Copyright (c) 2010-2023. The SimGrid Team. All rights reserved.
3 # This program is free software; you can redistribute it and/or modify it
4 # under the terms of the license (GNU LGPL) which comes with this package.
7 # ##################################################################################
8 # Take this tutorial online: https://simgrid.org/doc/latest/Tutorial_Algorithms.html
9 # ##################################################################################
13 from simgrid import Actor, Engine, Mailbox, this_actor
18 raise AssertionError(f"Actor master requires 4 parameters, but only {len(args)}")
19 tasks_count = int(args[0])
20 compute_cost = int(args[1])
21 communicate_cost = int(args[2])
23 this_actor.info(f"Got {tasks_count} tasks to process")
25 hosts = Engine.instance.get_all_hosts()
28 Actor.create(f'Worker-{h.name}', h, worker)
30 for i in range(tasks_count): # For each task to be executed:
31 # - Select a worker in a round-robin way
32 mailbox = Mailbox.by_name(f'Worker-{hosts[i%len(hosts)].name}')
34 # - Send the computation amount to the worker
35 if (tasks_count < 10000 or (tasks_count < 100000 and i % 10000 == 0) or i % 100000 == 0):
36 this_actor.info(f"Sending task {i} of {tasks_count} to mailbox '{mailbox.name}'")
37 mailbox.put(compute_cost, communicate_cost)
39 this_actor.info("All tasks have been dispatched. Request all workers to stop.")
41 # The workers stop when receiving a negative compute_cost
42 mailbox = Mailbox.by_name(f'Worker-{h.name}')
48 assert not args, "The worker expects no argument"
50 mailbox = Mailbox.by_name(f'Worker-{this_actor.get_host().name}')
53 compute_cost = mailbox.get()
54 if compute_cost > 0: # If compute_cost is valid, execute a computation of that cost
55 this_actor.execute(compute_cost)
56 else: # Stop when receiving an invalid compute_cost
59 this_actor.info("Exiting now.")
63 if __name__ == '__main__':
64 assert len(sys.argv) > 2, f"Usage: python app-masterworkers.py platform_file deployment_file"
68 # Register the classes representing the actors
69 e.register_actor("master", master)
70 e.register_actor("worker", worker)
72 # Load the platform description and then deploy the application
73 e.load_platform(sys.argv[1])
74 e.load_deployment(sys.argv[2])
79 this_actor.info("Simulation is over")