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. */
6 #include "simgrid/s4u.hpp"
8 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
9 namespace sg4 = simgrid::s4u;
11 static void executor()
13 /* this_actor::execute() tells SimGrid to pause the calling actor
14 * until its host has computed the amount of flops passed as a parameter */
15 sg4::this_actor::execute(98095);
18 /* This simple example does not do anything beyond that */
21 static void privileged()
23 /* This version of this_actor::execute() specifies that this execution 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, we get a 1/3 vs 2/3 sharing. */
28 sg4::this_actor::execute(98095, 2);
31 /* Note that the timings printed when running this example are a bit misleading, because the uneven sharing only last
32 * until the privileged actor ends. After this point, the unprivileged one gets 100% of the CPU and finishes quite
36 int main(int argc, char* argv[])
38 sg4::Engine e(&argc, argv);
39 xbt_assert(argc > 1, "Usage: %s platform_file\n\tExample: %s platform.xml\n", argv[0], argv[0]);
41 e.load_platform(argv[1]);
43 sg4::Actor::create("executor", e.host_by_name("Tremblay"), executor);
44 sg4::Actor::create("privileged", e.host_by_name("Tremblay"), privileged);