Esempio n. 1
0
void ASMHandler<GridType>::determineAdjacencyPattern()
{
  adjacencyPattern.resize(maxeqn);

  const LeafIndexSet& set = gv.leafView().indexSet();
  LeafIterator itend = gv.leafView().template end<0>();

  // iterate over cells
  for (LeafIterator it = gv.leafView().template begin<0>(); it != itend; ++it) {
    Dune::GeometryType gt = it->type();
    const Dune::template GenericReferenceElement<double,dim>& ref =
      Dune::GenericReferenceElements<double,dim>::general(gt);

    int vertexsize = ref.size(dim);
    for (int i=0; i < vertexsize; i++) {
      int indexi = set.subIndex(*it,i,dim);
      for (int k=0;k<dim;++k) {
        MPC* mpc = getMPC(indexi,k);
        if (mpc) {
          for (int l=0;l<mpc->getNoMaster();++l) {
            nodeAdjacency(it,vertexsize,
                          meqn[mpc->getMaster(l).node*dim+
                               mpc->getMaster(l).dof-1]);
          }
        } else
          nodeAdjacency(it,vertexsize,meqn[indexi*dim+k]);
      }
    }
  }
}
Esempio n. 2
0
void ASMHandler<GridType>::extractValues(Dune::FieldVector<double,comp>& v,
                                         const Vector& u,
                                         const LeafIterator& it)
{
  v = 0;
  const LeafIndexSet& set = gv.leafView().indexSet();
  Dune::GeometryType gt = it->type();
  const Dune::template GenericReferenceElement<double,dim> &ref =
                      Dune::GenericReferenceElements<double,dim>::general(gt);
  int vertexsize = ref.size(dim);
  int l=0;
  for (int i=0;i<vertexsize;++i) {
    int indexi = set.subIndex(*it,i,dim);
    fixIt it2 = fixedNodes.find(indexi);
    for (int n=0;n<dim;++n) {
      MPC* mpc = getMPC(indexi,n);
      if (it2 != fixedNodes.end() && it2->second.first & (1 << n))
        v[l++] = it2->second.second[n];
      else if (mpc) {
        for (int m=0;m<mpc->getNoMaster();++m) {
          int idx = meqn[mpc->getMaster(m).node*dim+mpc->getMaster(m).dof-1];
          if (idx != -1)
            v[l] += u[idx]*mpc->getMaster(m).coeff;
        }
        l++;
      } else
        v[l++] = u[meqn[indexi*dim+n]];
    }
  }
}
Esempio n. 3
0
void ASMHandler<GridType>::determineAdjacencyPattern()
{
  adjacencyPattern.resize(maxeqn);
  std::cout << "\tsetting up sparsity pattern..." << std::endl;
  LoggerHelper help(gv.size(0), 5, 50000);

  const LeafIndexSet& set = gv.leafView().indexSet();
  LeafIterator itend = gv.leafView().template end<0>();

  // iterate over cells
  int cell=0;
  for (LeafIterator it = gv.leafView().template begin<0>(); it != itend; ++it, ++cell) {
    Dune::GeometryType gt = it->type();

#if DUNE_VERSION_NEWER(DUNE_GRID, 2, 3)
    const Dune::template ReferenceElement<double,dim>& ref =
      Dune::ReferenceElements<double,dim>::general(gt);
#else
    const Dune::template GenericReferenceElement<double,dim>& ref =
      Dune::GenericReferenceElements<double,dim>::general(gt);
#endif

    int vertexsize = ref.size(dim);
    for (int i=0; i < vertexsize; i++) {
      int indexi = set.subIndex(*it,i,dim);
      for (int k=0;k<dim;++k) {
        MPC* mpc = getMPC(indexi,k);
        if (mpc) {
          for (size_t l=0;l<mpc->getNoMaster();++l) {
            nodeAdjacency(it,vertexsize,
                          meqn[mpc->getMaster(l).node*dim+
                               mpc->getMaster(l).dof-1]);
          }
        } else
          nodeAdjacency(it,vertexsize,meqn[indexi*dim+k]);
      }
    }
    help.log(cell, "\t\t... still processing ... cell ");
  }
}