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;

int nrnmpi_nout_;
int* nrnmpi_nin_;
int nrnmpi_i_capacity_;
NRNMPI_Spike* nrnmpi_spikeout_;
NRNMPI_Spike* nrnmpi_spikein_;

int nrnmpi_localgid_size_;
int nrnmpi_ag_send_size_;
int nrnmpi_send_nspike_;
int nrnmpi_ovfl_capacity_;
int nrnmpi_ovfl_;
unsigned char* nrnmpi_spikeout_fixed_;
unsigned char* nrnmpi_spikein_fixed_;
unsigned char* nrnmpi_spikein_fixed_ovfl_;
int nrn_cannot_use_threads_and_mpi;
