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/* Copyright (c) 2007-2025. 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/config.h"
#include "xbt/log.h"
XBT_LOG_NEW_DEFAULT_CATEGORY(test, "Pstate properties test");
static void dvfs(int argc, char* argv[])
{
sg_host_t host = sg_host_self();
unsigned long nb = sg_host_get_nb_pstates(host);
XBT_INFO("Count of Processor states=%lu", nb);
double current_peak = sg_host_get_speed(host);
XBT_INFO("Current power peak=%f", current_peak);
sg_actor_execute(100E6);
double task_time = simgrid_get_clock();
XBT_INFO("Task1 simulation time: %e", task_time);
// Change power peak
unsigned long new_pstate = 2;
xbt_assert(new_pstate < nb, "Cannot set the host %s at pstate %lu because it only provides %lu pstates.",
sg_host_get_name(host), new_pstate, nb);
double peak_at = sg_host_get_pstate_speed(host, new_pstate);
XBT_INFO("Changing power peak value to %f (at index %lu)", peak_at, new_pstate);
sg_host_set_pstate(host, new_pstate);
current_peak = sg_host_get_speed(host);
XBT_INFO("Current power peak=%f", current_peak);
sg_actor_execute(100E6);
task_time = simgrid_get_clock() - task_time;
XBT_INFO("Task2 simulation time: %e", task_time);
// Verify the default pstate is set to 0
host = sg_host_by_name("MyHost2");
unsigned long nb2 = sg_host_get_nb_pstates(host);
XBT_INFO("Count of Processor states=%lu", nb2);
double current_peak2 = sg_host_get_speed(host);
XBT_INFO("Current power peak=%f", current_peak2);
}
int main(int argc, char* argv[])
{
simgrid_init(&argc, argv);
xbt_assert(argc == 2, "Usage: %s platform_file\n\tExample: %s platform.xml\n", argv[0], argv[0]);
simgrid_load_platform(argv[1]);
sg_actor_create("dvfs_test", sg_host_by_name("MyHost1"), &dvfs, 0, NULL);
sg_actor_create("dvfs_test", sg_host_by_name("MyHost2"), &dvfs, 0, NULL);
simgrid_run();
XBT_INFO("Total simulation time: %e", simgrid_get_clock());
return 0;
}
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