NAME

       MPI_Get_address -  Get the address of a location in memory

SYNOPSIS

       int MPI_Get_address(const void *location, MPI_Aint *address)

INPUT PARAMETERS

       location
              - location in caller memory (choice)

OUTPUT PARAMETERS

       address
              - address of location (address integer)

NOTES

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

       This routine should be used instead of MPI_Address .

THREAD AND INTERRUPT SAFETY

       This routine is both thread- and interrupt-safe.  This means that this routine  may  safely  be  used  by
       multiple threads and from within a signal handler.

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.

       In Fortran, the integer type is always signed.  This can cause problems on systems where the address fits
       into  a four byte unsigned integer but the value is larger than the largest signed integer.  For example,
       a system with more than 2 GBytes of memory may have addresses that do not fit within a four  byte  signed
       integer.   Unfortunately, there is no easy solution to this problem, as there is no Fortran datatype that
       can be used here (using a longer integer type will cause other problems, as well as surprising users when
       the size of the integer type is larger that the size of a pointer in C).  In this case, it is recommended
       that you use C to manipulate addresses.

ERRORS

       All MPI routines (except MPI_Wtime and MPI_Wtick ) return an error value; C routines as the value of  the
       function  and Fortran routines in the last argument.  Before the value is returned, the current MPI error
       handler is called.  By default, this error handler aborts the MPI job.  The error handler may be  changed
       with    MPI_Comm_set_errhandler   (for   communicators),   MPI_File_set_errhandler   (for   files),   and
       MPI_Win_set_errhandler (for RMA windows).  The MPI-1 routine MPI_Errhandler_set may be used but  its  use
       is  deprecated.   The  predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be
       returned.  Note that MPI does not guarentee that an MPI program can continue past an error; however,  MPI
       implementations will attempt to continue whenever possible.

       MPI_SUCCESS
              - No error; MPI routine completed successfully.
       MPI_ERR_OTHER
              - Other error; use MPI_Error_string to get more information about this error code.

                                                    11/9/2015                                 MPI_Get_address(3)