MPI_Win_set_attr(3) Sets the value of a window attribute.

SYNTAX

C Syntax

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

Fortran Syntax (see FORTRAN 77 NOTES)

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

C++ Syntax

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

INPUT/OUTPUT PARAMETER

win
Window to which attribute will be attached (handle).

INPUT PARAMETERS

win_keyval
Key value (integer).
attribute_val
Attribute value.

OUTPUT PARAMETER

IERROR
Fortran only: Error status (integer).

DESCRIPTION

FORTRAN 77 NOTES

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.

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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