  mesh
   radial trisection
    trisection blocks, 4
     mintheta 22.5 
    numz 2
      zblock 1 1. interval 4
      zblock 2 1. interval 4
    numr 3 initial radius 3.0
      rblock 1 0.2 interval 4 
      rblock 2 0.3 interval 4
      rblock 3 0.5 interval 4
    numa 8
      ablock 1 45.0  interval 8
      ablock 2 45.0  interval 8
      ablock 3 45.0  interval 8
      ablock 4 45.0  interval 8
      ablock 5 45.0  interval 8
      ablock 6 45.0  interval 8
      ablock 7 45.0  interval 8
      ablock 8 45.0  interval 8
    end
   set assign
        nodeset, ihi, 40
        nodeset, khi, 10
        nodeset, klo, 20
        sideset, khi, 11
        sideset, klo, 21
        block sideset, ihi, 800, 17
        block sideset, ihi, 700, 15 
        block sideset, ihi, 600, 13 
        block sideset, ihi, 500, 11
        block sideset, ihi, 400, 9
        block sideset, ihi, 300, 7
        block sideset, ihi, 200, 5
        block sideset, ihi, 100, 3

        block nodeset, ihi, 801, 17
        block nodeset, ihi, 701, 15 
        block nodeset, ihi, 601, 13 
        block nodeset, ihi, 501, 11
        block nodeset, ihi, 401, 9
        block nodeset, ihi, 301, 7
        block nodeset, ihi, 201, 5
        block nodeset, ihi, 101, 3

    end

    decomposition strategy
$    sequential
 
    end
  end

