MPI_Win_delete_attr(3) Open MPI MPI_Win_delete_attr(3)

MPI_Win_delete_attr - Deletes an attribute from a window.

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

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

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

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

Window from which the attribute is deleted (handle).

Key value (integer).

Fortran only: Error status (integer).

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.

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.

September 30, 2023 4.1.6
QR Code