NAME¶
MPI_Win_delete_attr - Deletes an attribute from a window.
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)
- win
- Window from which the attribute is deleted (handle).
- 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.
