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/* Copyright (c) 2010-2025. 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/actor.h"
#include "simgrid/engine.h"
#include "simgrid/host.h"
#include "xbt/asserts.h"
#include "xbt/log.h"
XBT_LOG_NEW_DEFAULT_CATEGORY(exec_basic, "Messages specific for this example");
static void executor(int argc, char* argv[])
{
/* sg_actor_execute() tells SimGrid to pause the calling actor
* until its host has computed the amount of flops passed as a parameter */
sg_actor_execute(98095);
XBT_INFO("Done.");
/* This simple example does not do anything beyond that */
}
static void privileged(int argc, char* argv[])
{
/* sg_actor_execute_with_priority() 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. */
sg_actor_execute_with_priority(98095, 2);
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. */
}
int main(int argc, char* argv[])
{
simgrid_init(&argc, argv);
xbt_assert(argc > 1, "Usage: %s platform_file\n\tExample: %s ../platforms/small_platform.xml\n", argv[0], argv[0]);
simgrid_load_platform(argv[1]);
sg_actor_create("executor", sg_host_by_name("Tremblay"), &executor, 0, NULL);
sg_actor_create("privileged", sg_host_by_name("Tremblay"), &privileged, 0, NULL);
simgrid_run();
return 0;
}
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