1 /* Copyright (c) 2007-2023. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include <simgrid/plugins/file_system.h>
7 #include <simgrid/s4u.hpp>
10 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
11 namespace sg4 = simgrid::s4u;
13 int main(int argc, char* argv[])
15 sg4::Engine e(&argc, argv);
16 sg_storage_file_system_init();
17 e.load_platform(argv[1]);
19 auto bob = e.host_by_name("bob");
20 auto carl = e.host_by_name("carl");
22 // Display the details on vetoed activities
23 sg4::Activity::on_veto_cb([](const sg4::Activity& a) {
24 XBT_INFO("Activity '%s' vetoed. Dependencies: %s; Ressources: %s", a.get_cname(),
25 (a.dependencies_solved() ? "solved" : "NOT solved"), (a.is_assigned() ? "assigned" : "NOT assigned"));
28 sg4::Activity::on_completion_cb([](sg4::Activity const& activity) {
29 const auto* exec = dynamic_cast<sg4::Exec const*>(&activity);
30 if (exec == nullptr) // Only Execs are concerned here
32 XBT_INFO("Activity '%s' is complete (start time: %f, finish time: %f)", exec->get_cname(), exec->get_start_time(),
33 exec->get_finish_time());
36 // Create a small DAG: parent->write_output->read_input->child
37 sg4::ExecPtr parent = sg4::Exec::init();
38 sg4::IoPtr write_output = sg4::Io::init();
39 sg4::IoPtr read_input = sg4::Io::init();
40 sg4::ExecPtr child = sg4::Exec::init();
41 parent->add_successor(write_output);
42 write_output->add_successor(read_input);
43 read_input->add_successor(child);
45 // Set the parameters (the name is for logging purposes only)
46 // + parent and chile end after 1 second
47 parent->set_name("parent")->set_flops_amount(bob->get_speed());
48 write_output->set_name("write")->set_size(1e9)->set_op_type(sg4::Io::OpType::WRITE);
49 read_input->set_name("read")->set_size(1e9)->set_op_type(sg4::Io::OpType::READ);
50 child->set_name("child")->set_flops_amount(carl->get_speed());
52 // Schedule and try to start the different activities
53 parent->set_host(bob)->vetoable_start();
54 write_output->set_disk(bob->get_disks().front())->vetoable_start();
55 read_input->set_disk(carl->get_disks().front())->vetoable_start();
56 child->set_host(carl)->vetoable_start();
60 XBT_INFO("Simulation time %g", sg4::Engine::get_clock());