1 /* Copyright (c) 2006-2023. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "simgrid/s4u.hpp"
9 XBT_LOG_NEW_DEFAULT_CATEGORY(dag_failure, "Logging specific to this example");
11 namespace sg4 = simgrid::s4u;
13 int main(int argc, char** argv)
15 sg4::Engine e(&argc, argv);
16 sg4::Engine::set_config("host/model:ptask_L07");
17 e.load_platform(argv[1]);
19 auto* faulty = e.host_by_name("Faulty Host");
20 auto* safe = e.host_by_name("Safe Host");
21 sg4::Activity::on_completion_cb([](sg4::Activity const& activity) {
22 const auto* exec = dynamic_cast<sg4::Exec const*>(&activity);
23 if (exec == nullptr) // Only Execs are concerned here
25 if (exec->get_state() == sg4::Activity::State::FINISHED)
26 XBT_INFO("Activity '%s' is complete (start time: %f, finish time: %f)", exec->get_cname(), exec->get_start_time(),
27 exec->get_finish_time());
28 if (exec->get_state() == sg4::Activity::State::FAILED) {
29 if (exec->is_parallel())
30 XBT_INFO("Activity '%s' has failed. %.f %% remain to be done", exec->get_cname(),
31 100 * exec->get_remaining_ratio());
33 XBT_INFO("Activity '%s' has failed. %.f flops remain to be done", exec->get_cname(), exec->get_remaining());
37 /* creation of a single Exec that will poorly fail when the workstation will stop */
38 XBT_INFO("First test: sequential Exec activity");
39 sg4::ExecPtr exec = sg4::Exec::init()->set_name("Poor task")->set_flops_amount(2e10)->start();
41 XBT_INFO("Schedule Activity '%s' on 'Faulty Host'", exec->get_cname());
42 exec->set_host(faulty);
44 /* Add a child Exec that depends on the Poor task' */
45 sg4::ExecPtr child = sg4::Exec::init()->set_name("Child")->set_flops_amount(2e10)->set_host(safe);
46 exec->add_successor(child);
49 XBT_INFO("Run the simulation");
52 XBT_INFO("let's unschedule Activity '%s' and reschedule it on the 'Safe Host'", exec->get_cname());
56 XBT_INFO("Run the simulation again");
59 XBT_INFO("Second test: parallel Exec activity");
60 exec = sg4::Exec::init()->set_name("Poor parallel task")->set_flops_amounts({2e10, 2e10})->start();
62 XBT_INFO("Schedule Activity '%s' on 'Safe Host' and 'Faulty Host'", exec->get_cname());
63 exec->set_hosts({safe, faulty});
65 /* Add a child Exec that depends on the Poor parallel task' */
66 child = sg4::Exec::init()->set_name("Child")->set_flops_amount(2e10)->set_host(safe);
67 exec->add_successor(child);
70 XBT_INFO("Run the simulation");
73 XBT_INFO("let's unschedule Activity '%s' and reschedule it only on the 'Safe Host'", exec->get_cname());
75 exec->set_flops_amount(4e10)->set_host(safe);
77 XBT_INFO("Run the simulation again");