xbt_assert(s4u::Engine::instance_ == nullptr, "It is currently forbidden to create more than one instance of s4u::Engine");
s4u::Engine::instance_ = this;
SIMIX_global_init(argc, argv);
}
xbt_assert(s4u::Engine::instance_ == nullptr, "It is currently forbidden to create more than one instance of s4u::Engine");
s4u::Engine::instance_ = this;
SIMIX_global_init(argc, argv);
}