MPI_Attr_put

--- Stores attribute value associated with a key

Input Parameters

comm: communicator to which attribute will be attached (handle)

keyval: key value, as returned by MPI_KEYVAL_CREATE (integer)

attribute_val: attribute value

Notes

Values of the permanent attributes MPI_TAG_UB, MPI_HOST, and MPI_IO may not be changed.

The type of the attribute value depends on whether C or Fortran is being used. In C, an attribute value is a pointer (void *); in Fortran, it is a single integer (NOT a pointer, since Fortran has no pointers and their are systems for which a pointer does not fit in an integer (e.g., any > 32 bit address system that uses 64 bits for Fortran DOUBLE PRECISION).

Synopsis


#include "mpi.h"
int MPI_Attr_put ( comm, keyval, attr_value )
MPI_Comm comm;
int      keyval;
void     *attr_value;

Location: attr_putval.c