1 /* Copyright (c) 2010-2020. 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 #include "simgrid/s4u.hpp"
8 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
10 static void executor()
12 /* this_actor::execute() tells SimGrid to pause the calling actor
13 * until its host has computed the amount of flops passed as a parameter */
14 simgrid::s4u::this_actor::execute(98095);
17 /* This simple example does not do anything beyond that */
20 static void privileged()
22 /* This version of this_actor::execute() specifies that this execution
23 * gets a larger share of the resource.
25 * Since the priority is 2, it computes twice as fast as a regular one.
27 * So instead of a half/half sharing between the two executions,
28 * we get a 1/3 vs 2/3 sharing. */
29 simgrid::s4u::this_actor::execute(98095, 2);
32 /* Note that the timings printed when executing this example are a bit misleading,
33 * because the uneven sharing only last until the privileged actor ends.
34 * After this point, the unprivileged one gets 100% of the CPU and finishes
38 int main(int argc, char* argv[])
40 simgrid::s4u::Engine e(&argc, argv);
41 xbt_assert(argc > 1, "Usage: %s platform_file\n\tExample: %s ../platforms/small_platform.xml\n", argv[0], argv[0]);
43 e.load_platform(argv[1]);
45 simgrid::s4u::Actor::create("executor", simgrid::s4u::Host::by_name("Tremblay"), executor);
46 simgrid::s4u::Actor::create("privileged", simgrid::s4u::Host::by_name("Tremblay"), privileged);