MPI_Group_compare
Compares two groups 
Synopsis
#include "mpi.h"
int MPI_Group_compare ( group1, group2, result )
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) 
havean additional argument ierr at the end of the argument list.  
ierris an integer and has the same meaning as the return value of the 
routinein C.  In Fortran, MPI routines are subroutines, and are invoked with 
thecall statement.
All MPI objects (e.g., MPI_Datatype, MPI_Comm) are of type 
INTEGERin 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 
lastargument.  Before the value is returned, the current MPI error handler 
iscalled.  By default, this error handler aborts the MPI job.  The error 
handlermay be changed with MPI_Errhandler_set; the predefined error 
handlerMPI_ERRORS_RETURN may be used to cause error values to be returned.
Note that MPI does not guarentee that an MPI program can continue 
pastan 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