nrnmpi_def_cinc

int nrnmpi_use;
int nrnmpi_numprocs = 1; /* size */
int nrnmpi_myid = 0; /* rank */
int nrnmpi_numprocs_world = 1;
int nrnmpi_myid_world = 0;
int nrnmpi_numprocs_bbs = 1;
int nrnmpi_myid_bbs = 0;
// increment from within void nrnmpi_subworld_size(int n)
int nrnmpi_subworld_change_cnt = 0;
int nrnmpi_subworld_id = -1;
int nrnmpi_numprocs_subworld = 1;

int nrn_cannot_use_threads_and_mpi = 0;