Manpages - 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)

win

Window from which the attribute is deleted (handle).

win_keyval

Key value (integer).

IERROR

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.