1 /* Copyright (c) 2007-2023. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include <simgrid/s4u.hpp>
7 namespace sg4 = simgrid::s4u;
9 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_comm_dependent, "Messages specific for this s4u example");
11 static void sender(sg4::Mailbox* mailbox)
13 auto* computation_amount = new double(sg4::this_actor::get_host()->get_speed());
14 sg4::ExecPtr exec = sg4::this_actor::exec_init(2 * (*computation_amount));
15 sg4::CommPtr comm = mailbox->put_init(computation_amount, 7e6);
17 exec->set_name("exec on sender")->add_successor(comm)->start();
18 comm->set_name("comm to receiver")->start();
23 static void receiver(sg4::Mailbox* mailbox)
25 double* received = nullptr;
26 double computation_amount = sg4::this_actor::get_host()->get_speed();
27 sg4::ExecPtr exec = sg4::this_actor::exec_init(2 * computation_amount);
28 sg4::CommPtr comm = mailbox->get_init()->set_dst_data((void**)&received, sizeof(double));
30 comm->set_name("comm from sender")->add_successor(exec)->start();
31 exec->set_name("exec on receiver")->start();
35 XBT_INFO("Received: %.0f flops were computed on sender", *received);
39 int main(int argc, char* argv[])
41 sg4::Engine e(&argc, argv);
42 e.load_platform(argv[1]);
44 sg4::Mailbox* mbox = e.mailbox_by_name_or_create("Mailbox");
46 sg4::Actor::create("sender", e.host_by_name("Tremblay"), sender, mbox);
47 sg4::Actor::create("receiver", e.host_by_name("Jupiter"), receiver, mbox);
51 XBT_INFO("Simulation time: %.3f", sg4::Engine::get_clock());