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

       INCLUDE 'mpif.h'
       MPI_WIN_DELETE_ATTR(WIN, WIN_KEYVAL, IERROR)
            INTEGER WIN, WIN_KEYVAL, 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.