:ref:`MPI_Group_excl` |mdash| Produces a group by reordering an existing group and taking only unlisted members.
#include <mpi.h>
int MPI_Group_excl(MPI_Group group, int n, const int ranks[],
MPI_Group *newgroup)
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_GROUP_EXCL(GROUP, N, RANKS, NEWGROUP, IERROR)
INTEGER GROUP, N, RANKS(*), NEWGROUP, IERROR
USE mpi_f08
MPI_Group_excl(group, n, ranks, newgroup, ierror)
TYPE(MPI_Group), INTENT(IN) :: group
INTEGER, INTENT(IN) :: n, ranks(n)
TYPE(MPI_Group), INTENT(OUT) :: newgroup
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
group
: Group (handle).n
: Number of elements in array ranks (integer).ranks
: Array of integer ranks in group not to appear in newgroup.
newgroup
: New group derived from above, preserving the order defined- by group (handle).
ierror
: Fortran only: Error status (integer).
The function :ref:`MPI_Group_excl` creates a group of processes newgroup that is obtained by deleting from group those processes with ranks ranks[0], ... ranks[n-1]. The ordering of processes in newgroup is identical to the ordering in group. Each of the n elements of ranks must be a valid rank in group and all elements must be distinct; otherwise, the call is erroneous. If n = 0, then newgroup is identical to group.
Currently, each of the ranks to exclude must be a valid rank in the group and all elements must be distinct or the function is erroneous. This restriction is per the draft.
.. seealso:: :ref:`MPI_Group_range_excl`