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NAME
MPI_Address - Gets the address of a location in memory -- use of this
routine is deprecated.
SYNTAX
C Syntax
#include <mpi.h>
int MPI_Address(void *location, MPI_Aint *address)
Fortran Syntax
INCLUDE 'mpif.h'
MPI_ADDRESS(LOCATION, ADDRESS, IERROR)
<type> LOCATION (*)
INTEGER ADDRESS, IERROR
INPUT PARAMETER
location Location in caller memory (choice).
OUTPUT PARAMETERS
address Address of location (integer).
IERROR Fortran only: Error status (integer).
DESCRIPTION
Note that use of this routine is deprecated as of MPI-2. Please use
MPI_get_address instead.
This deprecated routine is not available in C++.
The address of a location in memory can be found by invoking this func-
tion. Returns the (byte) address of location.
Example: Using MPI_Address for an array.
REAL A(100,100)
INTEGER I1, I2, DIFF
CALL MPI_ADDRESS(A(1,1), I1, IERROR)
CALL MPI_ADDRESS(A(10,10), I2, IERROR)
DIFF = I2 - I1
! The value of DIFF is 909*sizeofreal; the values of I1 and I2 are
! implementation dependent.
NOTES
This routine is provided for both Fortran and C programmers and may be
useful when writing portable code. In the current release, the address
returned by this routine will be the same as that produced by the C &
operator.
C users may be tempted to avoid using MPI_Address and rely on the
availability of the address operator &. Note, however, that & cast-
expression is a pointer, not an address. ANSI C does not require that
Almost all MPI routines return an error value; C routines as the value
of the function and Fortran routines in the last argument. C++ func-
tions do not return errors. If the default error handler is set to
MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism
will be used to throw an MPI:Exception object.
Before the error value is returned, the current MPI error handler is
called. By default, this error handler aborts the MPI job, except for
I/O function errors. The error handler may be changed with
MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN
may be used to cause error values to be returned. Note that MPI does
not guarantee that an MPI program can continue past an error.
1.3.4 Nov 11, 2009 MPI_Address(3)
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