示例#1
0
//-----------------------------------------------------------------------------
void DofMap::check_dimensional_consistency(const ufc::dofmap& dofmap,
                                            const Mesh& mesh)
{
  // Check topological dimension
  if (dofmap.topological_dimension() != mesh.topology().dim())
  {
    dolfin_error("DofMap.cpp",
                 "create mapping of degrees of freedom",
                 "Topological dimension of the UFC dofmap (dim = %d) and the mesh (dim = %d) do not match",
                 dofmap.topological_dimension(),
                 mesh.topology().dim());
  }
}
示例#2
0
//-----------------------------------------------------------------------------
void DofMap::check_provided_entities(const ufc::dofmap& dofmap,
                                     const Mesh& mesh)
{
  // Check that we have all mesh entities
  for (std::size_t d = 0; d <= mesh.topology().dim(); ++d)
  {
    if (dofmap.needs_mesh_entities(d) && mesh.num_entities(d) == 0)
    {
      dolfin_error("DofMap.cpp",
                   "initialize mapping of degrees of freedom",
                   "Missing entities of dimension %d. Try calling mesh.init(%d)", d, d);
    }
  }
}
示例#3
0
//-----------------------------------------------------------------------------
std::size_t DofMapBuilder::compute_blocksize(const ufc::dofmap& ufc_dofmap)
{
  bool has_block_structure = false;
  if (ufc_dofmap.num_sub_dofmaps() > 1)
  {
    // Create UFC first sub-dofmap
    boost::scoped_ptr<ufc::dofmap>
      ufc_sub_dofmap0(ufc_dofmap.create_sub_dofmap(0));
    dolfin_assert(ufc_sub_dofmap0);

    // Create UFC sub-dofmaps and check that all sub dofmaps have the
    // same number of dofs per entity
    if (ufc_sub_dofmap0->num_sub_dofmaps() != 0)
      has_block_structure = false;
    else
    {
      // Assume dof map has block structure, then check
      has_block_structure = true;

      // Create UFC sub-dofmaps and check that all sub dofmaps have the
      // same number of dofs per entity
      for (std::size_t i = 1; i < ufc_dofmap.num_sub_dofmaps(); ++i)
      {
        boost::scoped_ptr<ufc::dofmap>
          ufc_sub_dofmap(ufc_dofmap.create_sub_dofmap(i));
        dolfin_assert(ufc_sub_dofmap);
        for (std::size_t d = 0; d <= ufc_dofmap.topological_dimension(); ++d)
        {
          if (ufc_sub_dofmap->num_entity_dofs(d)
              != ufc_sub_dofmap0->num_entity_dofs(d))
          {
            has_block_structure = false;
            break;
          }
        }
      }
    }
  }

  if (has_block_structure)
    return ufc_dofmap.num_sub_dofmaps();
  else
    return 1;
}
示例#4
0
//-----------------------------------------------------------------------------
std::shared_ptr<ufc::dofmap> DofMapBuilder::extract_ufc_sub_dofmap(
  const ufc::dofmap& ufc_dofmap,
  std::size_t& offset,
  const std::vector<std::size_t>& component,
  const std::vector<std::size_t>& num_global_mesh_entities)
{
  // Check if there are any sub systems
  if (ufc_dofmap.num_sub_dofmaps() == 0)
  {
    dolfin_error("DofMap.cpp",
                 "extract subsystem of degree of freedom mapping",
                 "There are no subsystems");
  }

  // Check that a sub system has been specified
  if (component.empty())
  {
    dolfin_error("DofMap.cpp",
                 "extract subsystem of degree of freedom mapping",
                 "No system was specified");
  }

  // Check the number of available sub systems
  if (component[0] >= ufc_dofmap.num_sub_dofmaps())
  {
    dolfin_error("DofMap.cpp",
                 "extract subsystem of degree of freedom mapping",
                 "Requested subsystem (%d) out of range [0, %d)",
                 component[0], ufc_dofmap.num_sub_dofmaps());
  }

  // Add to offset if necessary
  for (std::size_t i = 0; i < component[0]; i++)
  {
    // Extract sub dofmap
    boost::scoped_ptr<ufc::dofmap>
      ufc_tmp_dofmap(ufc_dofmap.create_sub_dofmap(i));
    dolfin_assert(ufc_tmp_dofmap);

    // Check dimensional consistency between UFC dofmap and the mesh
    //check_dimensional_consistency(ufc_dofmap, mesh);

    // Get offset
    offset += ufc_tmp_dofmap->global_dimension(num_global_mesh_entities);
  }

  // Create UFC sub-system
  std::shared_ptr<ufc::dofmap>
    sub_dofmap(ufc_dofmap.create_sub_dofmap(component[0]));
  dolfin_assert(sub_dofmap);

  // Return sub-system if sub-sub-system should not be extracted,
  // otherwise recursively extract the sub sub system
  if (component.size() == 1)
    return sub_dofmap;
  else
  {
    std::vector<std::size_t> sub_component;
    for (std::size_t i = 1; i < component.size(); ++i)
      sub_component.push_back(component[i]);

    std::shared_ptr<ufc::dofmap> sub_sub_dofmap
        = extract_ufc_sub_dofmap(*sub_dofmap, offset, sub_component,
                                 num_global_mesh_entities);

    return sub_sub_dofmap;
  }
}