NAME

       MPI_Group_range_excl  - Produces a group by excluding ranges of processes from an existing
       group.

SYNTAX

C Syntax

       #include <mpi.h>
       int MPI_Group_range_excl(MPI_Group group, int n, int ranges[][3],
            MPI_Group *newgroup)

Fortran Syntax

       INCLUDE 'mpif.h'
       MPI_GROUP_RANGE_EXCL(GROUP, N, RANGES, NEWGROUP, IERROR)
            INTEGER   GROUP, N, RANGES(3,*), NEWGROUP, IERROR

C++ Syntax

       #include <mpi.h>
       Group Group::Range_excl(int n, const int ranges[][3]) const

INPUT PARAMETERS

       group     Group (handle).

       n         Number of triplets in array ranges (integer).

       ranges    A one-dimensional array of integer triplets of the form (first rank, last  rank,
                 stride),  indicating  the  ranks  in  group of processes to be excluded from the
                 output group newgroup.

OUTPUT PARAMETERS

       newgroup  New group derived from above, preserving the order in group (handle).

       IERROR    Fortran only: Error status (integer).

DESCRIPTION

       Each computed rank must be a valid rank in group and all computed ranks must be  distinct,
       or else the program is erroneous.

       The  functionality of this routine is specified to be equivalent to expanding the array of
       ranges to an array of the excluded ranks and passing the  resulting  array  of  ranks  and
       other  arguments  to  MPI_Group_excl.  A call to MPI_Group_excl is equivalent to a call to
       MPI_Group_range_excl with each rank i in ranks replaced by  the  triplet  (i,i,1)  in  the
       argument ranges.

ERRORS

       Almost all MPI routines return an error value; C routines as the value of the function and
       Fortran routines in the last argument. C++ functions do not return errors. If the  default
       error  handler  is  set  to  MPI::ERRORS_THROW_EXCEPTIONS, 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   MPI_Comm_set_errhandler;   the   predefined   error    handler
       MPI_ERRORS_RETURN 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.

SEE ALSO

       MPI_Group_excl
       MPI_Group_free