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::Exec::on_completion_cb([](sg4::Exec const& exec) {
22 if (exec.get_state() == sg4::Activity::State::FINISHED)
23 XBT_INFO("Activity '%s' is complete (start time: %f, finish time: %f)", exec.get_cname(), exec.get_start_time(),
24 exec.get_finish_time());
25 if (exec.get_state() == sg4::Activity::State::FAILED) {
26 if (exec.is_parallel())
27 XBT_INFO("Activity '%s' has failed. %.f %% remain to be done", exec.get_cname(),
28 100 * exec.get_remaining_ratio());
30 XBT_INFO("Activity '%s' has failed. %.f flops remain to be done", exec.get_cname(), exec.get_remaining());
34 /* creation of a single Exec that will poorly fail when the workstation will stop */
35 XBT_INFO("First test: sequential Exec activity");
36 sg4::ExecPtr exec = sg4::Exec::init()->set_name("Poor task")->set_flops_amount(2e10)->start();
38 XBT_INFO("Schedule Activity '%s' on 'Faulty Host'", exec->get_cname());
39 exec->set_host(faulty);
41 /* Add a child Exec that depends on the Poor task' */
42 sg4::ExecPtr child = sg4::Exec::init()->set_name("Child")->set_flops_amount(2e10)->set_host(safe);
43 exec->add_successor(child);
46 XBT_INFO("Run the simulation");
49 XBT_INFO("let's unschedule Activity '%s' and reschedule it on the 'Safe Host'", exec->get_cname());
53 XBT_INFO("Run the simulation again");
56 XBT_INFO("Second test: parallel Exec activity");
57 exec = sg4::Exec::init()->set_name("Poor parallel task")->set_flops_amounts({2e10, 2e10})->start();
59 XBT_INFO("Schedule Activity '%s' on 'Safe Host' and 'Faulty Host'", exec->get_cname());
60 exec->set_hosts({safe, faulty});
62 /* Add a child Exec that depends on the Poor parallel task' */
63 child = sg4::Exec::init()->set_name("Child")->set_flops_amount(2e10)->set_host(safe);
64 exec->add_successor(child);
67 XBT_INFO("Run the simulation");
70 XBT_INFO("let's unschedule Activity '%s' and reschedule it only on the 'Safe Host'", exec->get_cname());
72 exec->set_flops_amount(4e10)->set_host(safe);
74 XBT_INFO("Run the simulation again");