1 /* Copyright (c) 2017-2023. 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 /* This example shows how to use the battery as a connector.
7 A solar panel is connected to the connector and power a host.
10 #include "simgrid/plugins/battery.hpp"
11 #include "simgrid/plugins/chiller.hpp"
12 #include "simgrid/plugins/energy.h"
13 #include "simgrid/plugins/solar_panel.hpp"
14 #include "simgrid/s4u.hpp"
16 #include <simgrid/s4u/Actor.hpp>
19 XBT_LOG_NEW_DEFAULT_CATEGORY(battery_chiller_solar, "Messages specific for this s4u example");
20 namespace sg4 = simgrid::s4u;
21 namespace sp = simgrid::plugins;
23 int main(int argc, char* argv[])
25 sg4::Engine e(&argc, argv);
26 e.load_platform(argv[1]);
27 sg_host_energy_plugin_init();
29 auto myhost1 = e.host_by_name("MyHost1");
31 auto connector = sp::Battery::init();
32 auto solar_panel = sp::SolarPanel::init("Solar Panel", 1, 1, 200, 0, 1e3);
34 connector->set_load("Solar Panel", solar_panel->get_power() * -1);
35 connector->connect_host(myhost1);
37 solar_panel->on_this_power_change_cb([connector](sp::SolarPanel *s) {
38 connector->set_load("Solar Panel", s->get_power() * -1);
41 sg4::Actor::create("manager", myhost1, [&myhost1, & solar_panel, &connector]{
42 XBT_INFO("Solar Panel power = %.2fW, MyHost1 power = %.2fW. The Solar Panel provides more than needed.", solar_panel->get_power(), sg_host_get_current_consumption(myhost1));
43 simgrid::s4u::this_actor::sleep_for(100);
44 XBT_INFO("Energy consumption MyHost1: %.2fkJ, Energy from the Solar Panel %.2fkJ", sg_host_get_consumed_energy(myhost1) / 1e3, connector->get_energy_provided() / 1e3);
46 solar_panel->set_solar_irradiance(100);
47 XBT_INFO("Solar Panel power = %.2fW, MyHost1 power = %.2fW. The Solar Panel provides exactly what is needed.", solar_panel->get_power(), sg_host_get_current_consumption(myhost1));
48 double last_measure_host_energy = sg_host_get_consumed_energy(myhost1);
49 double last_measure_connector_energy = connector->get_energy_provided();
51 simgrid::s4u::this_actor::sleep_for(100);
52 XBT_INFO("Energy consumption MyHost1: %.2fkJ, Energy from the Solar Panel %.2fkJ", (sg_host_get_consumed_energy(myhost1) - last_measure_host_energy) / 1e3, (connector->get_energy_provided() - last_measure_connector_energy) / 1e3);
54 XBT_INFO("MyHost1 executes something for 100s. The Solar Panel does not provide enough energy.");
55 last_measure_host_energy = sg_host_get_consumed_energy(myhost1);
56 last_measure_connector_energy = connector->get_energy_provided();
57 myhost1->execute(100 * myhost1->get_speed());
58 XBT_INFO("Energy MyHost1: %.2fkJ, Energy from the Solar Panel %.2fkJ", (sg_host_get_consumed_energy(myhost1) - last_measure_host_energy) / 1e3, (connector->get_energy_provided() - last_measure_connector_energy) / 1e3);