-/* Copyright (c) 2010-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2010-2019. 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() == 5, "The master function expects 4 arguments");
+ xbt_assert(args.size() > 4, "The master function expects at least 3 arguments");
- long workers_count = std::stol(args[1]);
- long tasks_count = std::stol(args[2]);
- double compute_cost = std::stod(args[3]);
- double communication_cost = std::stod(args[4]);
+ long tasks_count = std::stol(args[1]);
+ double compute_cost = std::stod(args[2]);
+ double communication_cost = std::stod(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 %ld workers and %ld tasks to process", workers_count, tasks_count);
+ 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 */
- std::string worker_rank = std::to_string(i % workers_count);
- std::string mailbox_name = std::string("worker-") + worker_rank;
- simgrid::s4u::MailboxPtr mailbox = simgrid::s4u::Mailbox::by_name(mailbox_name);
+ 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());
}
XBT_INFO("All tasks have been dispatched. Request all workers to stop.");
- for (int i = 0; i < workers_count; i++) {
+ for (unsigned int i = 0; i < workers.size(); i++) {
/* The workers stop when receiving a negative compute_cost */
- std::string mailbox_name = std::string("worker-") + std::to_string(i);
- simgrid::s4u::MailboxPtr mailbox = simgrid::s4u::Mailbox::by_name(mailbox_name);
+ simgrid::s4u::Mailbox* mailbox = workers[i % workers.size()];
mailbox->put(new double(-1.0), 0);
}
// worker-begin
static void worker(std::vector<std::string> args)
{
- xbt_assert(args.size() == 2, "The worker expects a single argument");
- long id = std::stol(args[1]);
+ xbt_assert(args.size() == 1, "The worker expects no argument");
- const std::string mailbox_name = std::string("worker-") + std::to_string(id);
- simgrid::s4u::MailboxPtr mailbox = simgrid::s4u::Mailbox::by_name(mailbox_name);
+ 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 {