1 /* Copyright (c) 2007-2020. 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 /* This example shows how to work with the state profile of a host or a link,
7 * specifying when the resource must be turned on or off.
9 * To set such a profile, the first way is to use a file in the XML, while the second is to use the programmatic
10 * interface. Once this profile is in place, the resource will automatically be turned on and off.
12 * The actors running on a host that is turned off are forcefully killed
13 * once their on_exit callbacks are executed. They cannot avoid this fate.
14 * Since we specified on_failure="RESTART" for each actors in the XML file,
15 * they will be automatically restarted when the host starts again.
17 * Communications using failed links will .. fail.
20 #include "simgrid/s4u.hpp"
22 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
24 static void master(std::vector<std::string> args)
26 xbt_assert(args.size() == 5, "Expecting one parameter");
28 simgrid::s4u::Mailbox* mailbox;
29 long number_of_tasks = std::stol(args[1]);
30 double comp_size = std::stod(args[2]);
31 long comm_size = std::stol(args[3]);
32 long workers_count = std::stol(args[4]);
34 XBT_INFO("Got %ld workers and %ld tasks to process", workers_count, number_of_tasks);
36 for (int i = 0; i < number_of_tasks; i++) {
37 mailbox = simgrid::s4u::Mailbox::by_name(std::string("worker-") + std::to_string(i % workers_count));
38 auto* payload = new double(comp_size);
40 XBT_INFO("Send a message to %s", mailbox->get_cname());
41 mailbox->put(payload, comm_size, 10.0);
42 XBT_INFO("Send to %s completed", mailbox->get_cname());
43 } catch (const simgrid::TimeoutException&) {
45 XBT_INFO("Mmh. Got timeouted while speaking to '%s'. Nevermind. Let's keep going!", mailbox->get_cname());
46 } catch (const simgrid::NetworkFailureException&) {
48 XBT_INFO("Mmh. The communication with '%s' failed. Nevermind. Let's keep going!", mailbox->get_cname());
52 XBT_INFO("All tasks have been dispatched. Let's tell everybody the computation is over.");
53 for (int i = 0; i < workers_count; i++) {
54 /* - Eventually tell all the workers to stop by sending a "finalize" task */
55 mailbox = simgrid::s4u::Mailbox::by_name(std::string("worker-") + std::to_string(i));
56 auto* payload = new double(-1.0);
58 mailbox->put(payload, 0, 1.0);
59 } catch (const simgrid::TimeoutException&) {
61 XBT_INFO("Mmh. Got timeouted while speaking to '%s'. Nevermind. Let's keep going!", mailbox->get_cname());
62 } catch (const simgrid::NetworkFailureException&) {
64 XBT_INFO("Mmh. Something went wrong with '%s'. Nevermind. Let's keep going!", mailbox->get_cname());
68 XBT_INFO("Goodbye now!");
71 static void worker(std::vector<std::string> args)
73 xbt_assert(args.size() == 2, "Expecting one parameter");
74 long id = std::stol(args[1]);
75 simgrid::s4u::Mailbox* mailbox = simgrid::s4u::Mailbox::by_name(std::string("worker-") + std::to_string(id));
78 XBT_INFO("Waiting a message on %s", mailbox->get_cname());
79 auto payload = mailbox->get_unique<double>();
80 xbt_assert(payload != nullptr, "mailbox->get() failed");
81 double comp_size = *payload;
82 if (comp_size < 0) { /* - Exit when -1.0 is received */
83 XBT_INFO("I'm done. See you!");
86 /* - Otherwise, process the task */
87 XBT_INFO("Start execution...");
88 simgrid::s4u::this_actor::execute(comp_size);
89 XBT_INFO("Execution complete.");
90 } catch (const simgrid::NetworkFailureException&) {
91 XBT_INFO("Mmh. Something went wrong. Nevermind. Let's keep going!");
96 int main(int argc, char* argv[])
98 simgrid::s4u::Engine e(&argc, argv);
99 e.load_platform(argv[1]);
100 e.register_function("master", master);
101 e.register_function("worker", worker);
102 e.load_deployment(argv[2]);
106 XBT_INFO("Simulation time %g", simgrid::s4u::Engine::get_clock());