- sg_netzone_t root_comp = simgrid::s4u::Engine::instance()->netRoot();
- XBT_DEBUG("root name %s\n", root_comp->name());
+ sg_netzone_t root_comp = simgrid::s4u::Engine::get_instance()->getNetRoot();
+ XBT_DEBUG("root name %s\n", root_comp->get_cname());