pc_make_decomp Subroutine

  subroutine pc_make_decomp(self, fieldmat)
    use mp, only: mp_abort
    implicit none
    class(pc_type), intent(inout) :: self
    class(fieldmat_type), intent(in out) :: fieldmat
    character (len=40) :: errmesg

    write(errmesg,'("decomp_type ",I0," not yet implemented.")') self%decomp_type

    !Select the appropriate routine to use
    select case(self%decomp_type)
    case(0)
       !Entirely local and serial
       call self%decomp_all_serial_local(fieldmat)
    case(1)
       !All supercells we can see a bit of are done
       !serially/locally
       call self%decomp_own_serial_local(fieldmat)
    case(2)
       !Just do the cells that we can see
       call self%decomp_owncells_serial_local(fieldmat)
    case(3)
       !Simple mpi with no attempt at load balance
       !or avoiding splitting small blocks
       call self%decomp_owncells_simplempi(fieldmat)
    case(4)
       !Simple mpi with no attempt at load balance
       !but we attempt to avoid splitting small blocks
       call mp_abort(trim(errmesg))
    case default
       !Invalid decomp_type
       write(errmesg,'("Invalid decomp_type : ",I0)') self%decomp_type
       call mp_abort(trim(errmesg))
    end select
  end subroutine pc_make_decomp