Panzer_SubcellConnectivity.cpp

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//           Panzer: A partial differential equation assembly
//       engine for strongly coupled complex multiphysics systems
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#include "Panzer_SubcellConnectivity.hpp"
#include "Panzer_LocalMeshInfo.hpp"

namespace panzer
{

void
FaceConnectivity::
setup(const panzer::LocalMeshPartition<int,panzer::Ordinal64> & partition)
{
  const int num_cells = partition.cell_to_faces.extent(0);
  const int num_faces = partition.face_to_cells.extent(0);
  const int num_faces_per_cell = partition.cell_to_faces.extent(1);
  const int num_cells_per_face = 2;

  _num_subcells = num_faces;
  _num_cells = num_cells;

  _subcell_to_cells_adj = Kokkos::View<int*>("subcell_to_cells_adj", num_faces+1);
  _subcell_to_cells = Kokkos::View<int*>("subcell_to_cells", num_faces*num_cells_per_face);
  _subcell_to_local_subcells = Kokkos::View<int*>("subcell_to_local_subcells", num_faces*num_cells_per_face);
  _cell_to_subcells_adj = Kokkos::View<int*>("cell_to_subcells_adj", num_cells+1);
  _cell_to_subcells = Kokkos::View<int*>("cell_to_subcells", num_cells*num_faces_per_cell);

  _subcell_to_cells_adj(0)=0;
  for(int face=0;face<num_faces;++face){
    _subcell_to_cells_adj(face+1) =_subcell_to_cells_adj(face)+num_cells_per_face;
    _subcell_to_cells(num_cells_per_face*face + 0) = partition.face_to_cells(face,0);
    _subcell_to_cells(num_cells_per_face*face + 1) = partition.face_to_cells(face,1);
    _subcell_to_local_subcells(num_cells_per_face*face + 0) = partition.face_to_lidx(face,0);
    _subcell_to_local_subcells(num_cells_per_face*face + 1) = partition.face_to_lidx(face,1);
  }

  _cell_to_subcells_adj(0)=0;
  for(int cell=0;cell<num_cells;++cell){
    _cell_to_subcells_adj(cell+1) =_cell_to_subcells_adj(cell)+num_faces_per_cell;
    for(int local_face=0;local_face<num_faces_per_cell;++local_face){
      _cell_to_subcells(num_faces_per_cell*cell+local_face) = partition.cell_to_faces(cell,local_face);
    }
  }

}

}