X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e989d2b49098728ebd426a9eea5cb35aabd470e2..e6f111b95343b45e14c154574210ef9a448369f5:/examples/cpp/battery-energy/s4u-battery-energy.cpp

diff --git a/examples/cpp/battery-energy/s4u-battery-energy.cpp b/examples/cpp/battery-energy/s4u-battery-energy.cpp
index 558cbc263f..09645ca754 100644
--- a/examples/cpp/battery-energy/s4u-battery-energy.cpp
+++ b/examples/cpp/battery-energy/s4u-battery-energy.cpp
@@ -6,68 +6,57 @@
 #include "simgrid/plugins/battery.hpp"
 #include "simgrid/plugins/energy.h"
 #include "simgrid/s4u.hpp"
-
-#include <iostream>
+#include <simgrid/s4u/Actor.hpp>
+#include <simgrid/s4u/Engine.hpp>
 
 XBT_LOG_NEW_DEFAULT_CATEGORY(battery_energy, "Messages specific for this s4u example");
 
 static void manager()
 {
-  const auto* battery = simgrid::s4u::Engine::get_instance()->host_by_name("battery");
-  auto* host1         = simgrid::s4u::Engine::get_instance()->host_by_name("host1");
-  auto* host2         = simgrid::s4u::Engine::get_instance()->host_by_name("host2");
-
-  XBT_INFO("Initial Battery: SoC: %f SoH: %f Capacity (Total): %fWh Capacity (Usable): %fWh P: %fW",
-           sg_battery_get_state_of_charge(battery), sg_battery_get_state_of_health(battery),
-           sg_battery_get_capacity(battery),
-           sg_battery_get_capacity(battery) *
-               (sg_battery_get_state_of_charge_max(battery) - sg_battery_get_state_of_charge_min(battery)),
-           sg_battery_get_power(battery));
-
-  // Start execs on each host
-  simgrid::s4u::ExecPtr exec1 = simgrid::s4u::Exec::init();
-  exec1->set_flops_amount(1e10);
-  exec1->set_host(host1);
-  exec1->start();
-  simgrid::s4u::ExecPtr exec2 = simgrid::s4u::Exec::init();
-  exec2->set_flops_amount(1e10);
-  exec2->set_host(host2);
-  exec2->start();
-  // Set power generation from the battery
-  double total_power_w =
-      sg_host_get_wattmax_at(host1, host1->get_pstate()) + sg_host_get_wattmax_at(host2, host2->get_pstate());
-  sg_battery_set_power(battery, total_power_w);
-  XBT_INFO("Battery power set to: %fW (host1) + %fW (host2)", sg_host_get_wattmax_at(host1, host1->get_pstate()),
-           sg_host_get_wattmax_at(host2, host2->get_pstate()));
-  double end = sg_battery_get_next_event_date(battery);
-  XBT_INFO("The battery will be depleted at: %f", end);
-  XBT_INFO("Exec1 will be finished in: %f", exec1->get_remaining() / host1->get_speed());
-  XBT_INFO("Exec2 will be finished in: %f", exec2->get_remaining() / host2->get_speed());
-  simgrid::s4u::this_actor::sleep_until(end);
-
-  // Battery depleted
-  XBT_INFO("Battery depleted: SoC: %f SoH: %f P: %fW", sg_battery_get_state_of_charge(battery),
-           sg_battery_get_state_of_health(battery), sg_battery_get_power(battery));
-  double energy_battery = sg_host_get_consumed_energy(host1) + sg_host_get_consumed_energy(host2);
-  XBT_INFO("Pursuing with power from the grid until both execs are finished");
-  simgrid::s4u::this_actor::sleep_for(
-      std::max(exec1->get_remaining() / host1->get_speed(), exec2->get_remaining() / host2->get_speed()));
-
-  // Execs finished
-  double energy_grid = sg_host_get_consumed_energy(host1) + sg_host_get_consumed_energy(host2) - energy_battery;
-  XBT_INFO("Energy consumed: Battery: %fJ (%fWh) Grid: %fJ (%fWh)", energy_battery, energy_battery / 3600, energy_grid,
-           energy_grid / 3600);
+  auto battery = simgrid::plugins::Battery::init("Battery", 0.8, 0.9, 0.9, 10, 1000, 0.9);
+
+  auto* host1 = simgrid::s4u::Engine::get_instance()->host_by_name("MyHost1");
+  auto* host2 = simgrid::s4u::Engine::get_instance()->host_by_name("MyHost2");
+  auto* host3 = simgrid::s4u::Engine::get_instance()->host_by_name("MyHost3");
+
+  battery->create_event(0.2, simgrid::plugins::Battery::DISCHARGE, [battery, &host1, &host2, &host3]() {
+    XBT_INFO("Event -> Battery low: SoC: %f SoH: %f Energy stored: %fJ Energy provided: %fJ Energy consumed %fJ",
+             battery->get_state_of_charge(), battery->get_state_of_health(), battery->get_energy_stored(),
+             battery->get_energy_provided(), battery->get_energy_consumed());
+    XBT_INFO("Disconnecting hosts %s and %s", host1->get_cname(), host2->get_cname());
+    battery->connect_host(host1, false);
+    battery->connect_host(host2, false);
+    XBT_INFO("Energy consumed this far by: %s: %fJ, %s: %fJ, %s: %fJ", host1->get_cname(),
+             sg_host_get_consumed_energy(host1), host2->get_cname(), sg_host_get_consumed_energy(host2),
+             host3->get_cname(), sg_host_get_consumed_energy(host3));
+  });
+
+  XBT_INFO("Battery state: SoC: %f SoH: %f Energy stored: %fJ Energy provided: %fJ Energy consumed %fJ",
+           battery->get_state_of_charge(), battery->get_state_of_health(), battery->get_energy_stored(),
+           battery->get_energy_provided(), battery->get_energy_consumed());
+  XBT_INFO("Connecting hosts %s and %s to the battery", host1->get_cname(), host2->get_cname());
+  battery->connect_host(host1);
+  battery->connect_host(host2);
+
+  double flops = 1e9;
+  XBT_INFO("Host %s will now execute %f flops", host1->get_cname(), flops);
+  host1->execute(flops);
+
+  simgrid::s4u::this_actor::sleep_until(200);
+  XBT_INFO("Battery state: SoC: %f SoH: %f Energy stored: %fJ Energy provided: %fJ Energy consumed %fJ",
+           battery->get_state_of_charge(), battery->get_state_of_health(), battery->get_energy_stored(),
+           battery->get_energy_provided(), battery->get_energy_consumed());
 }
 
 int main(int argc, char* argv[])
 {
   simgrid::s4u::Engine e(&argc, argv);
+  // if you plan to use Battery::connect_host you have to init the energy plugin at start.
+  sg_host_energy_plugin_init();
   e.load_platform(argv[1]);
 
-  sg_host_energy_plugin_init();
-  sg_battery_plugin_init();
+  simgrid::s4u::Actor::create("manager", e.host_by_name("MyHost1"), manager);
 
-  simgrid::s4u::Actor::create("manager", e.host_by_name("host1"), manager);
   e.run();
   return 0;
 }