Panzer_SubcellConnectivity.cpp

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//
//           Panzer: A partial differential equation assembly
//       engine for strongly coupled complex multiphysics systems
//                 Copyright (2011) Sandia Corporation
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#include "Panzer_SubcellConnectivity.hpp"
 
#include "Teuchos_Assert.hpp"
 
#include "Panzer_LocalMeshInfo.hpp"
 
namespace panzer
{
 
int
SubcellConnectivity::
numSubcellsOnCell(const int cell) const
{
#ifdef PANZER_DEBUG
  TEUCHOS_ASSERT(cell >= 0 and cell < _num_cells);
#endif
  return _cell_to_subcells_adj(cell+1)-_cell_to_subcells_adj(cell);
}
 
int
SubcellConnectivity::
numCellsOnSubcell(const int subcell) const
{
#ifdef PANZER_DEBUG
  TEUCHOS_ASSERT(subcell >= 0 and subcell < _num_subcells);
#endif
  return _subcell_to_cells_adj(subcell+1)-_subcell_to_cells_adj(subcell);
}
 
int
SubcellConnectivity::
subcellForCell(const int cell, const int local_subcell_index) const
{
#ifdef PANZER_DEBUG
  TEUCHOS_ASSERT(cell >= 0 and cell < _num_cells);
  TEUCHOS_ASSERT(local_subcell_index < numSubcellsOnCell(cell));
#endif
  const int index = _cell_to_subcells_adj(cell)+local_subcell_index;
  return _cell_to_subcells(index);
}
 
int
SubcellConnectivity::
cellForSubcell(const int subcell, const int local_cell_index) const
{
#ifdef PANZER_DEBUG
  TEUCHOS_ASSERT(subcell >= 0 and subcell < _num_subcells);
  TEUCHOS_ASSERT(local_cell_index < numCellsOnSubcell(subcell));
#endif
  const int index = _subcell_to_cells_adj(subcell)+local_cell_index;
  return _subcell_to_cells(index);
}
 
int
SubcellConnectivity::
localSubcellForSubcell(const int subcell, const int local_cell_index) const
{
#ifdef PANZER_DEBUG
  TEUCHOS_ASSERT(subcell >= 0 and subcell < _num_subcells);
  TEUCHOS_ASSERT(local_cell_index < numCellsOnSubcell(subcell));
#endif
  const int index = _subcell_to_cells_adj(subcell)+local_cell_index;
  return _subcell_to_local_subcells(index);
}
 
// ========================================================================
 
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);
    }
  }
 
}
 
}