MPI_ADDRESS, MPI_Address

Purpose

Returns the address of a variable in memory.

C synopsis

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

FORTRAN synopsis

include 'mpif.h' or use mpi
MPI_ADDRESS(CHOICE LOCATION,INTEGER ADDRESS,INTEGER IERROR)

Description

This subroutine returns the byte address of location.

Parameters

location
     is the location in caller memory (choice) (IN)
address
     is the address of location (integer) (OUT)
IERROR
     is the FORTRAN return code. It is always the last argument.

Notes

MPI_GET_ADDRESS supersedes MPI_ADDRESS.

The FORTRAN MPI_ADDRESS binding is not valid for 64-bit FORTRAN programs
because it is not possible to predict when an address will fit in 32 bits.

On the IBM RS/6000 SP and on the clustered server, MPI_ADDRESS is
equivalent to address= (MPI_Aint) location in C, but this subroutine is
portable to processors with less straightforward addressing.

Errors

MPI not initialized

MPI already finalized

Related information

     MPI_TYPE_HINDEXED
     MPI_TYPE_INDEXED
     MPI_TYPE_STRUCT