NAME

       MPI_Win_delete_attr - Deletes an attribute from a window.

SYNTAX

C Syntax

       #include <mpi.h>
       int MPI_Win_delete_attr(MPI_Win win, int win_keyval)

Fortran Syntax

       USE MPI
       ! or the older form: INCLUDE 'mpif.h'
       MPI_WIN_DELETE_ATTR(WIN, WIN_KEYVAL, IERROR)
            INTEGER WIN, WIN_KEYVAL, IERROR

Fortran 2008 Syntax

       USE mpi_f08
       MPI_Win_delete_attr(win, win_keyval, ierror)
            TYPE(MPI_Win), INTENT(IN) :: win
            INTEGER, INTENT(IN) :: win_keyval
            INTEGER, OPTIONAL, INTENT(OUT) :: ierror

C++ Syntax

       #include <mpi.h>
       void MPI::Win::Delete_attr(int win_keyval)

INPUT/OUTPUT PARAMETER

       win       Window from which the attribute is deleted (handle).

INPUT PARAMETER

       win_keyval
                 Key value (integer).

OUTPUT PARAMETER

       IERROR    Fortran only: Error status (integer).

NOTES

       Note  that it is not defined by the MPI standard what happens if the delete_fn callback invokes other MPI
       functions.  In Open MPI, it is not valid for delete_fn callbacks (or any of their  children)  to  add  or
       delete attributes on the same object on which the delete_fn callback is being invoked.

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++ functions 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.

4.1.6                                             Sep 30, 2023                            MPI_Win_delete_attr(3)