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MPI_Win_get_attr(3) man page (version 1.3.4)

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NAME

       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 (see FORTRAN 77 NOTES)

       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

C++ Syntax

       #include <mpi.h>
       bool MPI::Win::Get_attr(int win_keyval, void* attribute_val) const

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.

FORTRAN 77 NOTES

       The   MPI   standard   prescribes   portable  Fortran  syntax  for  the
       ATTRIBUTE_VAL argument only for Fortran 90. FORTRAN 77  users  may  use
       the non-portable syntax

            INTEGER*MPI_ADDRESS_KIND ATTRIBUTE_VAL

       where  MPI_ADDRESS_KIND  is  a constant defined in mpif.h and gives the
       length of the declared integer in bytes.

ERRORS

       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
       not guarantee that an MPI program can continue past an error.

1.3.4                            Nov 11, 2009              MPI_Win_get_attr(3)

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