jed_container_t child_container = new simgrid::jedule::Container(std::string(nz->get_cname()));
this->add_child(child_container);
child_container->create_hierarchy(nz);
jed_container_t child_container = new simgrid::jedule::Container(std::string(nz->get_cname()));
this->add_child(child_container);
child_container->create_hierarchy(nz);