-/* Copyright (c) 2007-2021. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2023. 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 <vector>
XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
+namespace sg4 = simgrid::s4u;
static void worker()
{
// Define an amount of work that should take 1 second to execute.
- double computation_amount = simgrid::s4u::this_actor::get_host()->get_speed();
+ double computation_amount = sg4::this_actor::get_host()->get_speed();
- std::vector<simgrid::s4u::ExecPtr> pending_execs;
// Create a small DAG
// + Two parents and a child
// + First parent ends after 1 second and the Second parent after 2 seconds.
- simgrid::s4u::ExecPtr first_parent = simgrid::s4u::this_actor::exec_init(computation_amount);
- pending_execs.push_back(first_parent);
- simgrid::s4u::ExecPtr second_parent = simgrid::s4u::this_actor::exec_init(2 * computation_amount);
- pending_execs.push_back(second_parent);
- simgrid::s4u::ExecPtr child = simgrid::s4u::this_actor::exec_init(computation_amount);
- pending_execs.push_back(child);
+ sg4::ExecPtr first_parent = sg4::this_actor::exec_init(computation_amount);
+ sg4::ExecPtr second_parent = sg4::this_actor::exec_init(2 * computation_amount);
+ sg4::ExecPtr child = sg4::Exec::init()->set_flops_amount(computation_amount);
+
+ sg4::ActivitySet pending_execs ({first_parent, second_parent, child});
// Name the activities (for logging purposes only)
first_parent->set_name("parent 1");
// Start the activities.
first_parent->start();
second_parent->start();
- // child uses a vetoable start to force it to wait for the completion of its predecessors
- child->vetoable_start();
+ child->start();
// wait for the completion of all activities
while (not pending_execs.empty()) {
- int changed_pos = simgrid::s4u::Exec::wait_any_for(pending_execs, -1);
- XBT_INFO("Exec '%s' is complete", pending_execs[changed_pos]->get_cname());
- pending_execs.erase(pending_execs.begin() + changed_pos);
+ auto completed_one = pending_execs.wait_any();
+ if (completed_one != nullptr)
+ XBT_INFO("Exec '%s' is complete", completed_one->get_cname());
}
}
int main(int argc, char* argv[])
{
- simgrid::s4u::Engine e(&argc, argv);
+ sg4::Engine e(&argc, argv);
e.load_platform(argv[1]);
- simgrid::s4u::Actor::create("worker", simgrid::s4u::Host::by_name("Fafard"), worker);
+ sg4::Actor::create("worker", e.host_by_name("Fafard"), worker);
+
+ sg4::Exec::on_veto_cb([&e](sg4::Exec& exec) {
+ // First display the situation
+ XBT_INFO("Activity '%s' vetoed. Dependencies: %s; Ressources: %s", exec.get_cname(),
+ (exec.dependencies_solved() ? "solved" : "NOT solved"),
+ (exec.is_assigned() ? "assigned" : "NOT assigned"));
+
+ // In this simple case, we just assign the child task to a resource when its dependencies are solved
+ if (exec.dependencies_solved() && not exec.is_assigned()) {
+ XBT_INFO("Activity %s's dependencies are resolved. Let's assign it to Fafard.", exec.get_cname());
+ exec.set_host(e.host_by_name("Fafard"));
+ }
+ });
e.run();
- XBT_INFO("Simulation time %g", simgrid::s4u::Engine::get_clock());
+ XBT_INFO("Simulation time %g", sg4::Engine::get_clock());
return 0;
}