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/s4u.hpp"
7 #include <simgrid/plugins/file_system.h>
10 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
11 namespace sg4 = simgrid::s4u;
15 std::vector<sg4::ActivityPtr> pending_activities;
17 sg4::ExecPtr bob_compute = sg4::this_actor::exec_init(1e9);
18 pending_activities.push_back(boost::dynamic_pointer_cast<sg4::Activity>(bob_compute));
19 sg4::IoPtr bob_write = sg4::Host::current()->get_disks().front()->io_init(4000000, sg4::Io::OpType::WRITE);
20 pending_activities.push_back(boost::dynamic_pointer_cast<sg4::Activity>(bob_write));
21 sg4::IoPtr carl_read = sg4::Host::by_name("carl")->get_disks().front()->io_init(4000000, sg4::Io::OpType::READ);
22 pending_activities.push_back(boost::dynamic_pointer_cast<sg4::Activity>(carl_read));
23 sg4::ExecPtr carl_compute = sg4::Host::by_name("carl")->exec_init(1e9);
24 pending_activities.push_back(boost::dynamic_pointer_cast<sg4::Activity>(carl_compute));
26 // Name the activities (for logging purposes only)
27 bob_compute->set_name("bob compute");
28 bob_write->set_name("bob write");
29 carl_read->set_name("carl read");
30 carl_compute->set_name("carl compute");
32 // Create the dependencies:
33 // 'bob_write' is a successor of 'bob_compute'
34 // 'carl_read' is a successor of 'bob_write'
35 // 'carl_compute' is a successor of 'carl_read'
36 bob_compute->add_successor(bob_write);
37 bob_write->add_successor(carl_read);
38 carl_read->add_successor(carl_compute);
40 // Start the activities.
44 carl_compute->start();
46 // wait for the completion of all activities
47 while (not pending_activities.empty()) {
48 ssize_t changed_pos = sg4::Activity::wait_any(pending_activities);
49 XBT_INFO("Activity '%s' is complete", pending_activities[changed_pos]->get_cname());
50 pending_activities.erase(pending_activities.begin() + changed_pos);
54 int main(int argc, char* argv[])
56 sg4::Engine e(&argc, argv);
57 e.load_platform(argv[1]);
59 sg4::Actor::create("bob", e.host_by_name("bob"), test);
63 XBT_INFO("Simulation time %g", sg4::Engine::get_clock());