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NAME
MPI_Address - Gets the address of a location in memory
SYNOPSIS
int MPI_Address(const void *location, MPI_Aint *address)
INPUT PARAMETERS
location
- location in caller memory (choice)
OUTPUT PARAMETERS
address
- address of location (address integer)
NOTE
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.
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.
DEPRECATED FUNCTION
The MPI-2 standard deprecated a number of routines because MPI-2 provides better versions. This routine
is one of those that was deprecated. The routine may continue to be used, but new code should use the
replacement routine. The replacement for this routine is MPI_Get_address .
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.
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.
LOCATION
src/mpi/datatype/address.c
4/24/2013 MPI_Address(3)