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/* Copyright (c) 2007-2025. 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"
#include <string>
#include <unordered_map>
XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
namespace sg4 = simgrid::s4u;
struct MasterWorkerNames {
std::string master;
std::string worker;
};
using MasterWorkerNamesMap = std::unordered_map<int, MasterWorkerNames>;
struct Payload {
double msg_size;
double start_time;
};
static void master(MasterWorkerNamesMap& names, const std::vector<std::string>& args)
{
xbt_assert(args.size() == 4, "Strange number of arguments expected 3 got %zu", args.size() - 1);
XBT_DEBUG("Master started");
/* data size */
double msg_size = std::stod(args[1]);
int id = std::stoi(args[3]); // unique id to control statistics
/* master and worker names */
names.try_emplace(id, MasterWorkerNames{sg4::Host::current()->get_name(), args[2]});
sg4::Mailbox* mbox = sg4::Mailbox::by_name(args[3]);
auto* payload = new Payload{msg_size, sg4::Engine::get_clock()};
mbox->put(payload, static_cast<uint64_t>(msg_size));
XBT_DEBUG("Finished");
}
static void worker(const MasterWorkerNamesMap& names, const std::vector<std::string>& args)
{
xbt_assert(args.size() == 2, "Strange number of arguments expected 1 got %zu", args.size() - 1);
int id = std::stoi(args[1]);
sg4::Mailbox* mbox = sg4::Mailbox::by_name(args[1]);
XBT_DEBUG("Worker started");
auto payload = mbox->get_unique<Payload>();
double elapsed_time = sg4::Engine::get_clock() - payload->start_time;
XBT_INFO("FLOW[%d] : Receive %.0f bytes from %s to %s", id, payload->msg_size, names.at(id).master.c_str(),
names.at(id).worker.c_str());
XBT_DEBUG("FLOW[%d] : transferred in %f seconds", id, elapsed_time);
XBT_DEBUG("Finished");
}
int main(int argc, char* argv[])
{
sg4::Engine e(&argc, argv);
xbt_assert(argc > 2,
"Usage: %s platform_file deployment_file\n"
"\tExample: %s platform.xml deployment.xml\n",
argv[0], argv[0]);
e.load_platform(argv[1]);
MasterWorkerNamesMap master_worker_names;
e.register_function("master", [&master_worker_names](auto args) { master(master_worker_names, args); });
e.register_function("worker", [&master_worker_names](auto args) { worker(master_worker_names, args); });
e.load_deployment(argv[2]);
e.run();
return 0;
}
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