NAME
          pnet_nodes - Get total number of nodes in the network

     SYNOPSIS
          #include <mpi.h>
          #include "pnet.h"

          int pnet_nodes(const Pnet *pnet);

     DESCRIPTION
          Function returns total number of nodes in the network.
          Function is implemented as a macro.  The argument of
          pnet_nodes is:

          pnet Pointer to initialized Pnet struct

     RETURN VALUE
          Upon successful completion number of nodes in network is
          returned.


     AUTHORS
          For authors and contributors see AUTHORS file


     COPYRIGHT
          (C) Potsdam Institute for Climate Impact Research (PIK), see
          COPYRIGHT file


     SEE ALSO
          pnet_init(3), pnet_free(3), pnet_setup(3), pnet_lo(3),
          pnet_hi(3)