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/* Copyright (c) 2019-2025. 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"
XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_exec_waitfor, "Messages specific for this s4u example");
namespace sg4 = simgrid::s4u;
static void worker()
{
sg4::ExecPtr exec;
double amount = 5 * sg4::this_actor::get_host()->get_speed();
XBT_INFO("Create an activity that should run for 5 seconds");
exec = sg4::this_actor::exec_async(amount);
/* Now that execution is started, wait for 3 seconds. */
XBT_INFO("But let it end after 3 seconds");
try {
exec->wait_for(3);
XBT_INFO("Execution complete");
} catch (const simgrid::TimeoutException&) {
XBT_INFO("Execution Wait Timeout!");
}
/* do it again, but this time with a timeout greater than the duration of the execution */
XBT_INFO("Create another activity that should run for 5 seconds and wait for it for 6 seconds");
exec = sg4::this_actor::exec_async(amount);
try {
exec->wait_for(6);
XBT_INFO("Execution complete");
} catch (const simgrid::TimeoutException&) {
XBT_INFO("Execution Wait Timeout!");
}
XBT_INFO("Finally test with a parallel execution");
auto hosts = sg4::Engine::get_instance()->get_all_hosts();
size_t hosts_count = hosts.size();
std::vector<double> computation_amounts;
std::vector<double> communication_amounts;
computation_amounts.assign(hosts_count, 1e9 /*1Gflop*/);
communication_amounts.assign(hosts_count * hosts_count, 0);
for (size_t i = 0; i < hosts_count; i++)
for (size_t j = i + 1; j < hosts_count; j++)
communication_amounts[i * hosts_count + j] = 1e7; // 10 MB
exec = sg4::this_actor::exec_init(hosts, computation_amounts, communication_amounts);
try {
exec->wait_for(2);
XBT_INFO("Parallel Execution complete");
} catch (const simgrid::TimeoutException&) {
XBT_INFO("Parallel Execution Wait Timeout!");
}
}
int main(int argc, char* argv[])
{
sg4::Engine e(&argc, argv);
e.load_platform(argv[1]);
e.host_by_name("Tremblay")->add_actor("worker", worker);
e.run();
return 0;
}
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