MPI_Comm_free_keyval(3)

NAME
     MPI_Comm_free_keyval - Frees the communicator attribute key for the
     communicator cache attribute

SYNOPSIS
     C:

          #include <mpi.h>

          int MPI_Comm_free_keyval ( comm_keyval )
          int *comm_keyval;


     Fortran:

          INCLUDE "mpif.h" (or USE MPI)

          INTEGER comm_keyval, ierror

          CALL MPI_COMM_FREE_KEYVAL(comm_keyval, ierror)


STANDARDS
     This function is defined in the MPI-2 standard.

     This release implements the MPI 1.2 standard, as documented by the MPI
     Forum in the spring 1997 release of MPI:  A Message Passing Interface
     Standard.

DESCRIPTION
     The MPI_Comm_free_keyval routine frees the communicator attribute key for
     the communicator cache attribute.  This routine replaces the
     MPI_Keyval_free routine, which has been deprecated.  This routine accepts
     the following parameter:

     comm_keyval
               Frees the integer key value (integer)

     ierror    Specifies the return code value for successful completion,
               which is in MPI_SUCCESS.  MPI_SUCCESS is defined in the mpif.h
               file.

NOTES
     Key values are global (they can be used with any and all communicators).