add possibility for a battery to be a simple connector and an example. add power...

[simgrid.git] / examples / cpp / battery-connector / s4u-battery-connector.cpp

diff --git a/examples/cpp/battery-connector/s4u-battery-connector.cpp b/examples/cpp/battery-connector/s4u-battery-connector.cpp
new file mode 100644 (file)
index 0000000..b4d9434
--- /dev/null
+++ b/examples/cpp/battery-connector/s4u-battery-connector.cpp
@@ -0,0 +1,63 @@
+/* Copyright (c) 2017-2023. 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. */
+
+/* This example shows how to use the battery as a connector.
+   A solar panel is connected to the connector and power a host.
+*/
+
+#include "simgrid/plugins/battery.hpp"
+#include "simgrid/plugins/chiller.hpp"
+#include "simgrid/plugins/energy.h"
+#include "simgrid/plugins/solar_panel.hpp"
+#include "simgrid/s4u.hpp"
+#include <math.h>
+#include <simgrid/s4u/Actor.hpp>
+#include <xbt/log.h>
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(battery_chiller_solar, "Messages specific for this s4u example");
+namespace sg4 = simgrid::s4u;
+namespace sp  = simgrid::plugins;
+
+int main(int argc, char* argv[])
+{
+  sg4::Engine e(&argc, argv);
+  e.load_platform(argv[1]);
+  sg_host_energy_plugin_init();
+
+  auto myhost1 = e.host_by_name("MyHost1");
+
+  auto connector     = sp::Battery::init();
+  auto solar_panel = sp::SolarPanel::init("Solar Panel", 1, 1, 200, 0, 1e3);
+
+  connector->set_load("Solar Panel", solar_panel->get_power() * -1);
+  connector->connect_host(myhost1);
+
+  solar_panel->on_this_power_change_cb([connector](sp::SolarPanel *s) {
+    connector->set_load("Solar Panel", s->get_power() * -1);
+  });
+
+  sg4::Actor::create("manager", myhost1, [&myhost1, & solar_panel, &connector]{
+    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));
+    simgrid::s4u::this_actor::sleep_for(100);
+    XBT_INFO("Energy consumption MyHost1: %.2fkJ, Energy from the Solar Panel %.2fkJ", sg_host_get_consumed_energy(myhost1) / 1e3, connector->get_energy_provided() / 1e3);
+
+    solar_panel->set_solar_irradiance(100);
+    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));
+    double last_measure_host_energy = sg_host_get_consumed_energy(myhost1);
+    double last_measure_connector_energy = connector->get_energy_provided();
+
+    simgrid::s4u::this_actor::sleep_for(100);
+    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);
+
+    XBT_INFO("MyHost1 executes something for 100s. The Solar Panel does not provide enough energy.");
+    last_measure_host_energy = sg_host_get_consumed_energy(myhost1);
+    last_measure_connector_energy = connector->get_energy_provided();
+    myhost1->execute(100 * myhost1->get_speed());
+    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);
+  });
+
+  e.run();
+  return 0;
+}