MPI_Dims_create

Creates a division of processors in a cartesian grid

Synopsis

#include "mpi.h"
int MPI_Dims_create(
        int nnodes, 
        int ndims, 
        int *dims)

Input Parameters

	nnodes	number of nodes in a grid (integer)
	ndims	number of cartesian dimensions (integer)

In/Out Parameter

dims

integer array of size ndims specifying the number of nodes in each dimension

Notes for Fortran

All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK) have an additional argument ierr at the end of the argument list. ierr is an integer and has the same meaning as the return value of the routine in C. In Fortran, MPI routines are subroutines, and are invoked with the call statement.

All MPI objects (e.g., MPI_Datatype, MPI_Comm) are of type INTEGER in Fortran.

Location:dims_create.c