MPI_Group_range_excl
Produces a group by excluding ranges of processes from an existing group 
Synopsis
#include "mpi.h"
int MPI_Group_range_excl ( group, n, ranges, newgroup )
MPI_Group group, *newgroup;
int       n, ranges[][3];
Input Parameters
|  | group | group (handle) 
 | 
|  | n | number of elements in array ranks (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 Parameter
- newgroup  
-  new group derived from above, preserving the 
order in group  (handle) 
Note
Currently, each of the ranks to exclude must 
bea valid rank in the group and all elements must be distinct or 
thefunction is erroneous.  This restriction is per the draft.
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_INTERN  
-  This error is returned when some part of the MPICH 
implementation is unable to acquire memory.  
- MPI_ERR_RANK  
-  Invalid source or destination rank.  Ranks must be between
zero and the size of the communicator minus one; ranks in a receive
(MPI_Recv, MPI_Irecv, MPI_Sendrecv, etc.) may also be MPI_ANY_SOURCE.
- MPI_ERR_ARG  
-  Invalid argument.  Some argument is invalid and is not
identified by a specific error class (e.g., MPI_ERR_RANK).
See Also
 MPI_Group_free
Location:group_rexcl.c