SimGrid  3.18
Versatile Simulation of Distributed Systems
examples/s4u/exec-basic/s4u-exec-basic.cpp
/* Copyright (c) 2010-2017. 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. */
#include "simgrid/s4u.hpp"
XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
static int executor(std::vector<std::string> /*args*/)
{
/* this_actor::execute() tells SimGrid to pause the calling actor
* until its host has computed the amount of flops passed as a parameter */
XBT_INFO("Done.");
/* This simple example does not do anything beyond that */
return 0;
}
static int privileged(std::vector<std::string> /*args*/)
{
/* This version of this_actor::execute() specifies that this execution
* gets a larger share of the resource.
*
* Since the priority is 2, it computes twice as fast as a regular one.
*
* So instead of a half/half sharing between the two executions,
* we get a 1/3 vs 2/3 sharing. */
XBT_INFO("Done.");
/* Note that the timings printed when executing this example are a bit misleading,
* because the uneven sharing only last until the privileged actor ends.
* After this point, the unprivileged one gets 100% of the CPU and finishes
* quite quickly. */
return 0;
}
int main(int argc, char* argv[])
{
simgrid::s4u::Engine e(&argc, argv);
std::vector<std::string> args;
xbt_assert(argc > 1, "Usage: %s platform_file\n\tExample: %s msg_platform.xml\n", argv[0], argv[0]);
e.loadPlatform(argv[1]);
simgrid::s4u::Actor::createActor("executor", simgrid::s4u::Host::by_name("Tremblay"), executor, args);
simgrid::s4u::Actor::createActor("privileged", simgrid::s4u::Host::by_name("Tremblay"), privileged, args);
e.run();
return 0;
}