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NAME

       MPI_Group_compare -  Compares two groups

SYNOPSIS

       #include "mpi.h"
       int MPI_Group_compare ( MPI_Group group1, MPI_Group group2, int *result )

INPUT PARAMETERS

       group1 - group1 (handle)
       group2 - group2 (handle)

OUTPUT PARAMETER

       result -  integer  which  is  MPI_IDENT if the order and members of the two groups are the
              same, MPI_SIMILAR if only the members are the same, and MPI_UNEQUAL otherwise

NOTES FOR FORTRAN

       All MPI routines in Fortran (except for MPI_WTIME  and  MPI_WTICK  )  have  an  additional
       argument  ierr  at  the  end  of  the  argument list.  ierr is an integer and has the same
       meaning as the  return  value  of  the  routine  in  C.   In  Fortran,  MPI  routines  are
       subroutines, and are invoked with the call statement.

       All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in Fortran.

ERRORS

       All  MPI  routines  (except MPI_Wtime and MPI_Wtick ) return an error value; C routines as
       the value of the function and Fortran routines in the last argument.  Before the value  is
       returned,  the current MPI error handler is called.  By default, this error handler aborts
       the MPI job.  The error handler may be changed with MPI_Errhandler_set  ;  the  predefined
       error  handler  MPI_ERRORS_RETURN  may be used to cause error values to be returned.  Note
       that MPI does not guarentee that an MPI program can continue past an error.

       MPI_SUCCESS
              - No error; MPI routine completed successfully.
       MPI_ERR_GROUP
              - Null group passed to function.
       MPI_ERR_ARG
              - Invalid argument.  Some argument is invalid and is not identified by  a  specific
              error class (e.g., MPI_ERR_RANK ).

LOCATION

       groupcompare.c

                                            11/14/2001                       MPI_Group_compare(3)