trusty (4) PGAGetNumProcs.4.gz

NAME

       PGAGetNumProcs - Returns the size of communicator comm in processes.

DESCRIPTION

       If comm is NULL or a sequential version of PGAPack is used, PGAGetNumProcs() returns 1.

INPUT PARAMETERS

       ctx    - context variable structure pointer
       comm   - an MPI communicator

OUTPUT PARAMETERS

       none

SYNOPSIS

       #include "pgapack.h"
       int  PGAGetNumProcs(ctx, comm)
       PGAContext *ctx
       MPI_Comm comm

LOCATION

       parallel.c

EXAMPLE

       Example:
       PGAContext  *ctx;
       :
       if (PGAGetNumProcs(ctx, MPI_COMM_WORLD) < 4) {
       printf("Too few processors for decent performance!0);
       exit(-1);
       }

                                                    05/01/95                                   PGAGetNumProcs(4)