MPI_COMM_COMPARE(3)MPI_COMM_COMPARE(3)NAMEMPI_Comm_compare - Compares two communicators
SYNOPSIS
C:
#include <mpi.h>
int MPI_Comm_compare ( comm1, comm2, result )
MPI_Comm comm1;
MPI_Comm comm2;
int *result;
C++:
#include <mpi.h>
static int Comm::Compare(
const Comm& comm1,
const Comm& comm2)
Fortran:
INCLUDE "mpif.h" (or USE MPI)
INTEGER comm1, comm2, result, ierror
CALL MPI_COMM_COMPARE(comm1, comm2, result,
ierror)
STANDARDS
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_compare routine compares two communicators. This routine
accepts the following parameters:
comm1 Specifies the first communicator to be compared (handle)
comm2 Specifies the second communicator to be compared (handle)
result Returns integer result. Predefined values are as follows:
MPI_IDENT The contexts and groups are the same.
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MPI_COMM_COMPARE(3)MPI_COMM_COMPARE(3)
MPI_CONGRUENT Different contexts but identical groups.
MPI_SIMILAR Different contexts but similar groups.
MPI_UNEQUAL Unequal contexts and groups. ierror
Specifies the return code value for
successful completion, which is in
MPI_SUCCESS. MPI_SUCCESS is defined in the
mpif.h file.
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