XBT_PRIVATE simgrid::smpi::ActorExt* smpi_process();
XBT_PRIVATE simgrid::smpi::ActorExt* smpi_process_remote(simgrid::s4u::ActorPtr actor);
-XBT_PRIVATE int smpi_get_universe_size();
XBT_PRIVATE void smpi_deployment_register_process(const std::string& instance_id, int rank,
const simgrid::s4u::Actor* actor);