--- /dev/null
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2017 by the deal.II authors
+//
+// This file is part of the deal.II library.
+//
+// The deal.II library is free software; you can use it, redistribute
+// it, and/or modify it under the terms of the GNU Lesser General
+// Public License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+// The full text of the license can be found in the file LICENSE at
+// the top level of the deal.II distribution.
+//
+// ---------------------------------------------------------------------
+
+
+
+// have a 2x1 coarse mesh (or 2x1x1) and verify DoF indices in the hp
+// case with an FECollection that contains multiple copies of the same
+// FE_Q(2) element. in the sequential case, the hp code will unify DoF
+// indices on boundaries between locally owned subdomains, but in
+// parallel, we don't do that
+
+
+#include "../tests.h"
+#include <deal.II/base/tensor.h>
+#include <deal.II/distributed/tria.h>
+#include <deal.II/grid/tria_accessor.h>
+#include <deal.II/grid/tria_iterator.h>
+#include <deal.II/grid/grid_generator.h>
+#include <deal.II/grid/intergrid_map.h>
+#include <deal.II/base/utilities.h>
+#include <deal.II/hp/dof_handler.h>
+#include <deal.II/hp/fe_collection.h>
+#include <deal.II/fe/fe_q.h>
+
+#include <numeric>
+
+
+template <int dim>
+void test()
+{
+ parallel::distributed::Triangulation<dim>
+ triangulation (MPI_COMM_WORLD,
+ Triangulation<dim>::limit_level_difference_at_vertices);
+
+ std::vector<unsigned int> reps(dim, 1U);
+ reps[0] = 2;
+ Point<dim> top_right;
+ for (unsigned int d=0; d<dim; ++d)
+ top_right[d] = (d==0 ? 2 : 1);
+ GridGenerator::subdivided_hyper_rectangle(triangulation,
+ reps,
+ Point<dim>(),
+ top_right);
+ Assert (triangulation.n_global_active_cells() == 2,
+ ExcInternalError());
+ Assert (triangulation.n_active_cells() == 2,
+ ExcInternalError());
+
+ hp::FECollection<dim> fe;
+ fe.push_back (FE_Q<dim>(2));
+ fe.push_back (FE_Q<dim>(2));
+
+ hp::DoFHandler<dim> dof_handler (triangulation);
+ if (dof_handler.begin_active()->is_locally_owned())
+ dof_handler.begin_active()->set_active_fe_index(0);
+ if ((++dof_handler.begin_active())->is_locally_owned())
+ (++dof_handler.begin_active())->set_active_fe_index(1);
+ dof_handler.distribute_dofs (fe);
+
+ deallog << "Processor: " << Utilities::MPI::this_mpi_process (MPI_COMM_WORLD)
+ << std::endl;
+ for (auto cell : dof_handler.active_cell_iterators())
+ {
+ deallog << " Cell: " << cell << std::endl;
+
+ std::vector<types::global_dof_index> dof_indices (cell->get_fe().dofs_per_cell);
+ cell->get_dof_indices (dof_indices);
+ deallog << " ";
+ for (auto i : dof_indices)
+ deallog << i << ' ';
+ deallog << std::endl;
+ }
+}
+
+
+int main(int argc, char *argv[])
+{
+ Utilities::MPI::MPI_InitFinalize mpi_initialization (argc, argv, 1);
+
+ unsigned int myid = Utilities::MPI::this_mpi_process (MPI_COMM_WORLD);
+ if (myid == 0)
+ {
+ initlog();
+
+ deallog.push("2d");
+ test<2>();
+ deallog.pop();
+
+ deallog.push("3d");
+ test<3>();
+ deallog.pop();
+ }
+ else
+ {
+ test<2>();
+ test<3>();
+ }
+
+}