MPI_Win_delete_attr(3) 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.

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