+++ /dev/null
-/* Copyright (c) 2017. 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. */
-
-#include "xbt/str.h"
-#include <simgrid/s4u.hpp>
-#include <algorithm>
-#include <string>
-#include <map>
-#include <vector>
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_app_token_ring, "Messages specific for this s4u example");
-
-class RelayRunner {
- size_t task_comm_size = 1000000; /* The token is 1MB long*/
- simgrid::s4u::MailboxPtr my_mailbox;
- simgrid::s4u::MailboxPtr neighbor_mailbox;
- unsigned int rank = 0;
-
-public:
- explicit RelayRunner() = default;
-
- void operator()()
- {
- try {
- rank = std::stoi(simgrid::s4u::this_actor::getName());
- } catch (std::invalid_argument& ia) {
- throw std::invalid_argument(std::string("Processes of this example must have a numerical name, not ") +
- ia.what());
- }
- my_mailbox = simgrid::s4u::Mailbox::byName(std::to_string(rank));
- if (rank + 1 == simgrid::s4u::Engine::getInstance()->getHostCount())
- /* The last process, which sends the token back to rank 0 */
- neighbor_mailbox = simgrid::s4u::Mailbox::byName("0");
- else
- /* The others processes send to their right neighbor (rank+1) */
- neighbor_mailbox = simgrid::s4u::Mailbox::byName(std::to_string(rank + 1));
-
- if (rank == 0) {
- /* The root process (rank 0) first sends the token then waits to receive it back */
- XBT_INFO("Host \"%u\" send 'Token' to Host \"%s\"", rank, neighbor_mailbox->getName());
- neighbor_mailbox->put(xbt_strdup("Token"), task_comm_size);
- char* res = static_cast<char*>(my_mailbox->get());
- XBT_INFO("Host \"%u\" received \"%s\"", rank, res);
- xbt_free(res);
- } else {
- char* res = static_cast<char*>(my_mailbox->get());
- XBT_INFO("Host \"%u\" received \"%s\"", rank, res);
- XBT_INFO("Host \"%u\" send 'Token' to Host \"%s\"", rank, neighbor_mailbox->getName());
- neighbor_mailbox->put(res, task_comm_size);
- }
- }
-};
-
-int main(int argc, char** argv)
-{
- simgrid::s4u::Engine* e = new simgrid::s4u::Engine(&argc, argv);
- xbt_assert(argc > 1, "Usage: %s platform.xml\n", argv[0]);
- e->loadPlatform(argv[1]);
-
- XBT_INFO("Number of hosts '%zu'", e->getHostCount());
- int id = 0;
- std::vector<simgrid::s4u::Host*> list;
- e->getHostList(&list);
- for (auto const& host : list) {
- /* - Give a unique rank to each host and create a @ref relay_runner process on each */
- simgrid::s4u::Actor::createActor((std::to_string(id)).c_str(), host, RelayRunner());
- id++;
- }
- e->run();
- XBT_INFO("Simulation time %g", e->getClock());
-
- delete e;
- return 0;
-}
