+++ /dev/null
-/* Copyright (c) 2010-2021. The SimGrid Team. All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-/* ************************************************************************* */
-/* Take this tutorial online: https://simgrid.frama.io/simgrid/tuto_s4u.html */
-/* ************************************************************************* */
-
-#include <simgrid/s4u.hpp>
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_app_masterworker, "Messages specific for this example");
-
-// master-begin
-static void master(std::vector<std::string> args)
-{
- xbt_assert(args.size() > 4, "The master function expects at least 3 arguments");
-
- long tasks_count = std::stol(args[1]);
- double compute_cost = std::stod(args[2]);
- long communication_cost = std::stol(args[3]);
- std::vector<simgrid::s4u::Mailbox*> workers;
- for (unsigned int i = 4; i < args.size(); i++)
- workers.push_back(simgrid::s4u::Mailbox::by_name(args[i]));
-
- XBT_INFO("Got %zu workers and %ld tasks to process", workers.size(), tasks_count);
-
- for (int i = 0; i < tasks_count; i++) { /* For each task to be executed: */
- /* - Select a worker in a round-robin way */
- simgrid::s4u::Mailbox* mailbox = workers[i % workers.size()];
-
- /* - Send the computation cost to that worker */
- XBT_INFO("Sending task %d of %ld to mailbox '%s'", i, tasks_count, mailbox->get_cname());
- mailbox->put(new double(compute_cost), communication_cost);
- }
-
- XBT_INFO("All tasks have been dispatched. Request all workers to stop.");
- for (unsigned int i = 0; i < workers.size(); i++) {
- /* The workers stop when receiving a negative compute_cost */
- simgrid::s4u::Mailbox* mailbox = workers[i % workers.size()];
-
- mailbox->put(new double(-1.0), 0);
- }
-}
-// master-end
-
-// worker-begin
-static void worker(std::vector<std::string> args)
-{
- xbt_assert(args.size() == 1, "The worker expects no argument");
-
- const simgrid::s4u::Host* my_host = simgrid::s4u::this_actor::get_host();
- simgrid::s4u::Mailbox* mailbox = simgrid::s4u::Mailbox::by_name(my_host->get_name());
-
- double compute_cost;
- do {
- auto msg = mailbox->get_unique<double>();
- compute_cost = *msg;
-
- if (compute_cost > 0) /* If compute_cost is valid, execute a computation of that cost */
- simgrid::s4u::this_actor::execute(compute_cost);
- } while (compute_cost > 0); /* Stop when receiving an invalid compute_cost */
-
- XBT_INFO("Exiting now.");
-}
-// worker-end
-
-// main-begin
-int main(int argc, char* argv[])
-{
- simgrid::s4u::Engine e(&argc, argv);
- xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n", argv[0]);
-
- /* Register the functions representing the actors */
- e.register_function("master", &master);
- e.register_function("worker", &worker);
-
- /* Load the platform description and then deploy the application */
- e.load_platform(argv[1]);
- e.load_deployment(argv[2]);
-
- /* Run the simulation */
- e.run();
-
- XBT_INFO("Simulation is over");
-
- return 0;
-}
-// main-end
