1 # Copyright (c) 2010-2022. 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.
6 # ##################################################################################
7 # Take this tutorial online: https://simgrid.org/doc/latest/Tutorial_Algorithms.html
8 # ##################################################################################
10 from simgrid import Engine, Mailbox, this_actor
15 assert len(args) > 3, f"Actor master requires 3 parameters plus the workers' names, but got {len(args)}"
16 tasks_count = int(args[0])
17 compute_cost = int(args[1])
18 communicate_cost = int(args[2])
20 for i in range(3, len(args)):
21 workers.append(Mailbox.by_name(args[i]))
22 this_actor.info(f"Got {len(workers)} workers and {tasks_count} tasks to process")
24 for i in range(tasks_count): # For each task to be executed:
25 # - Select a worker in a round-robin way
26 mailbox = workers[i % len(workers)]
28 # - Send the computation amount to the worker
29 if (tasks_count < 10000 or (tasks_count < 100000 and i % 10000 == 0) or i % 100000 == 0):
30 this_actor.info(f"Sending task {i} of {tasks_count} to mailbox '{mailbox.name}'")
31 mailbox.put(compute_cost, communicate_cost)
33 this_actor.info("All tasks have been dispatched. Request all workers to stop.")
34 for i in range (len(workers)):
35 # The workers stop when receiving a negative compute_cost
42 assert len(args) == 0, "The worker expects to not get any argument"
44 mailbox = Mailbox.by_name(this_actor.get_host().name)
47 compute_cost = mailbox.get()
48 if compute_cost > 0: # If compute_cost is valid, execute a computation of that cost
49 this_actor.execute(compute_cost)
50 else: # Stop when receiving an invalid compute_cost
53 this_actor.info("Exiting now.")
57 if __name__ == '__main__':
58 assert len(sys.argv) > 2, f"Usage: python app-masterworkers.py platform_file deployment_file"
62 # Register the classes representing the actors
63 e.register_actor("master", master)
64 e.register_actor("worker", worker)
66 # Load the platform description and then deploy the application
67 e.load_platform(sys.argv[1])
68 e.load_deployment(sys.argv[2])
73 this_actor.info("Simulation is over")