simgrid::simix::simcall([]() {
std::vector<simgrid::s4u::Host*> list = simgrid::s4u::Engine::get_instance()->get_all_hosts();
for (auto const& host : list)
simgrid::simix::simcall([]() {
std::vector<simgrid::s4u::Host*> list = simgrid::s4u::Engine::get_instance()->get_all_hosts();
for (auto const& host : list)