Gets the address of a location in memory


#include "mpi.h"
int MPI_Address( location, address)
void     *location;
MPI_Aint *address;

Input Parameters

location in caller memory (choice)

Output Parameter

address of location (integer)


This routine is provided for both the Fortran and C programmers. On many systems, the address returned by this routine will be the sameas produced by the C & operator, but this is not required in C andmay not be true of systems with word- rather than byte- orientedinstructions or systems with segmented address spaces.

Notes for Fortran

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

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