MPI_Win_get_attr.3.rst

MPI_Win_get_attr

MPI_Win_get_attr Obtains the value of a window attribute.

SYNTAX

C Syntax

#include <mpi.h>

int MPI_Win_get_attr(MPI_Win win, int win_keyval,
 void *attribute_val, int *flag)

Fortran Syntax

USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_WIN_GET_ATTR(WIN, WIN_KEYVAL, ATTRIBUTE_VAL, FLAG, IERROR)
 INTEGER WIN, WIN_KEYVAL, IERROR
 INTEGER(KIND=MPI_ADDRESS_KIND) ATTRIBUTE_VAL
 LOGICAL FLAG

Fortran 2008 Syntax

USE mpi_f08
MPI_Win_get_attr(win, win_keyval, attribute_val, flag, ierror)
 TYPE(MPI_Win), INTENT(IN) :: win
 INTEGER, INTENT(IN) :: win_keyval
 INTEGER(KIND=MPI_ADDRESS_KIND), INTENT(OUT) :: attribute_val
 LOGICAL, INTENT(OUT) :: flag
 INTEGER, OPTIONAL, INTENT(OUT) :: ierror

INPUT PARAMETERS

• win: Window to which the attribute is attached (handle).
• win_keyval: Key value (integer).

OUTPUT PARAMETERS

• attribute_val: Attribute value, unless ag = false
• flag: False if no attribute is associated with the key (logical).
• ierror: Fortran only: Error status (integer).

DESCRIPTION

Obtains the value of a window attribute.

ERRORS