SimGrid  3.18
Versatile Simulation of Distributed Systems
examples/s4u/app-pingpong/s4u-app-pingpong.cpp
/* Copyright (c) 2007-2017. 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 "simgrid/s4u.hpp"
XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_app_pingpong, "Messages specific for this s4u example");
static void pinger(std::vector<std::string> args)
{
xbt_assert(args.size() == 1, "The pinger function one argument from the XML deployment file");
XBT_INFO("Ping -> %s", args[0].c_str());
xbt_assert(simgrid::s4u::Host::by_name_or_null(args[0]) != nullptr, "Unknown host %s. Stopping Now! ",
args[0].c_str());
/* - Do the ping with a 1-Byte task (latency bound) ... */
double* payload = new double();
simgrid::s4u::Mailbox::byName(args[0])->put(payload, 1);
/* - ... then wait for the (large) pong */
double* sender_time =
double communication_time = simgrid::s4u::Engine::getClock() - *sender_time;
XBT_INFO("Task received : large communication (bandwidth bound)");
XBT_INFO("Pong time (bandwidth bound): %.3f", communication_time);
delete sender_time;
}
static void ponger(std::vector<std::string> args)
{
xbt_assert(args.size() == 1, "The ponger function one argument from the XML deployment file");
XBT_INFO("Pong -> %s", args[0].c_str());
xbt_assert(simgrid::s4u::Host::by_name_or_null(args[0]) != nullptr, "Unknown host %s. Stopping Now! ",
args[0].c_str());
/* - Receive the (small) ping first ....*/
double* sender_time =
double communication_time = simgrid::s4u::Engine::getClock() - *sender_time;
XBT_INFO("Task received : small communication (latency bound)");
XBT_INFO(" Ping time (latency bound) %f", communication_time);
delete sender_time;
/* - ... Then send a 1GB pong back (bandwidth bound) */
double* payload = new double();
XBT_INFO("task_bw->data = %.3f", *payload);
simgrid::s4u::Mailbox::byName(args[0])->put(payload, 1e9);
}
int main(int argc, char* argv[])
{
simgrid::s4u::Engine e(&argc, argv);
e.loadPlatform(argv[1]);
std::vector<std::string> args;
args.push_back("Jupiter");
simgrid::s4u::Actor::createActor("pinger", simgrid::s4u::Host::by_name("Tremblay"), pinger, args);
args.pop_back();
args.push_back("Tremblay");
e.run();
XBT_INFO("Total simulation time: %.3f", e.getClock());
return 0;
}