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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/s4u.hpp"
XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
namespace sg4 = simgrid::s4u;
static void wizard()
{
const sg4::Host* fafard = sg4::Host::by_name("Fafard");
sg4::Host* ginette = sg4::Host::by_name("Ginette");
sg4::Host* boivin = sg4::Host::by_name("Boivin");
XBT_INFO("I'm a wizard! I can run an activity on the Ginette host from the Fafard one! Look!");
sg4::ExecPtr exec = sg4::this_actor::exec_init(48.492e6);
exec->set_host(ginette);
exec->start();
XBT_INFO("It started. Running 48.492Mf takes exactly one second on Ginette (but not on Fafard).");
sg4::this_actor::sleep_for(0.1);
XBT_INFO("Loads in flops/s: Boivin=%.0f; Fafard=%.0f; Ginette=%.0f", boivin->get_load(), fafard->get_load(),
ginette->get_load());
exec->wait();
XBT_INFO("Done!");
XBT_INFO("And now, harder. Start a remote activity on Ginette and move it to Boivin after 0.5 sec");
exec = sg4::this_actor::exec_init(73293500)->set_host(ginette);
exec->start();
sg4::this_actor::sleep_for(0.5);
XBT_INFO("Loads before the move: Boivin=%.0f; Fafard=%.0f; Ginette=%.0f", boivin->get_load(), fafard->get_load(),
ginette->get_load());
exec->set_host(boivin);
sg4::this_actor::sleep_for(0.1);
XBT_INFO("Loads after the move: Boivin=%.0f; Fafard=%.0f; Ginette=%.0f", boivin->get_load(), fafard->get_load(),
ginette->get_load());
exec->wait();
XBT_INFO("Done!");
XBT_INFO("And now, even harder. Start a remote activity on Ginette and turn off the host after 0.5 sec");
exec = sg4::this_actor::exec_init(48.492e6)->set_host(ginette);
exec->start();
sg4::this_actor::sleep_for(0.5);
ginette->turn_off();
try {
exec->wait();
} catch (const simgrid::HostFailureException&) {
XBT_INFO("Execution failed on %s", ginette->get_cname());
}
XBT_INFO("Done!");
}
int main(int argc, char* argv[])
{
sg4::Engine e(&argc, argv);
e.load_platform(argv[1]);
e.host_by_name("Fafard")->add_actor("test", wizard);
e.run();
return 0;
}
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