MPIGroupcompare(3OpenMPI) MPIGroupcompare(3OpenMPI)

NAME
       MMPPIIGGrroouuppccoommppaarree  - Compares two groups.


SSYYNNTTAAXX
CC SSyynnttaaxx
       #include 
       int MPIGroupcompare(MPIGroup group1, MPIGroup group2,
            int *result)


FFoorrttrraann SSyynnttaaxx
       INCLUDE 'mpif.h'
       MPIGROUPCOMPARE(GROUP1, GROUP2, RESULT, IERROR)
            INTEGER   GROUP1, GROUP2, RESULT, IERROR


CC++++ SSyynnttaaxx
       #include 
       static int Group::Compare(const Group& group1, const Group& group2)


IINNPPUUTT PPAARRAAMMEETTEERRSS
       group1    First group (handle).

       group2    Second group (handle).


OOUUTTPPUUTT PPAARRAAMMEETTEERRSS
       result    Integer  which  is  MPIIDENT if the order and members of the
                 two groups are the same, MPISIMILAR if only the members  are
                 the same, and MPIUNEQUAL otherwise.

       IERROR    Fortran only: Error status (integer).


DESCRIPTION
       MPIIDENT  results  if the group members and group order is exactly the
       same in both groups. This happens for instance if group1 and group2 are
       the  same handle. MPISIMILAR results if the group members are the same
       but the order is different. MPIUNEQUAL results otherwise.


EERRRROORRSS
       Almost all MPI routines return an error value; C routines as the  value
       of  the  function  and Fortran routines in the last argument. C++ func-
       tions do not return errors. If the default  error  handler  is  set  to
       MPI::ERRORSTHROWEXCEPTIONS, then on error the C++ exception mechanism
       will be used to throw an MPI:Exception object.

       Before the error value is returned, the current MPI  error  handler  is
       called.  By  default, this error handler aborts the MPI job, except for
       I/O  function  errors.  The  error  handler   may   be   changed   with
       MPICommseterrhandler; the predefined error handler MPIERRORSRETURN
       may be used to cause error values to be returned. Note  that  MPI  does
       not guarantee that an MPI program can continue past an error.




Open MPI 1.2                    September 2006     MPIGroupcompare(3OpenMPI)