MPI_Win_set_attr(3) Open MPI MPI_Win_set_attr(3)

MPI_Win_set_attr - Sets the value of a window attribute.

#include <mpi.h>
int MPI_Win_set_attr(MPI_Win win, int win_keyval, void *attribute_val)

USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_WIN_SET_ATTR(WIN, WIN_KEYVAL, ATTRIBUTE_VAL, IERROR)
	INTEGER WIN, WIN_KEYVAL, IERROR
	INTEGER(KIND=MPI_ADDRESS_KIND) ATTRIBUTE_VAL

USE mpi_f08
MPI_Win_set_attr(win, win_keyval, attribute_val, ierror)
	TYPE(MPI_Win), INTENT(IN) :: win
	INTEGER, INTENT(IN) :: win_keyval
	INTEGER(KIND=MPI_ADDRESS_KIND), INTENT(IN) :: attribute_val
	INTEGER, OPTIONAL, INTENT(OUT) :: ierror

#include <mpi.h>
void MPI::Win::Set_attr(int win_keyval, const void* attribute_val)

Window to which attribute will be attached (handle).

Key value (integer).
Attribute value.

Fortran only: Error status (integer).

The MPI standard prescribes portable Fortran syntax for the ATTRIBUTE_VAL argument only for Fortran 90. FORTRAN 77 users may use the non-portable syntax

     INTEGER*MPI_ADDRESS_KIND ATTRIBUTE_VAL

where MPI_ADDRESS_KIND is a constant defined in mpif.h and gives the length of the declared integer in bytes.

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