From: heister <heister@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Wed, 24 Aug 2011 18:22:58 +0000 (+0000)
Subject: add parallel test for DoFRenumbering::hierarchical()
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0004677942a0acd56e774b6d8eac39a2ac177ee4;p=dealii-svn.git

add parallel test for DoFRenumbering::hierarchical()

git-svn-id: https://svn.dealii.org/trunk@24179 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/tests/mpi/renumber_z_order_01.cc b/tests/mpi/renumber_z_order_01.cc
new file mode 100644
index 0000000000..0f710cb509
--- /dev/null
+++ b/tests/mpi/renumber_z_order_01.cc
@@ -0,0 +1,150 @@
+//---------------------------------------------------------------------------
+//    $Id: p4est_2d_dofhandler_01.cc 23710 2011-05-17 04:50:10Z bangerth $
+//    Version: $Name$
+//
+//    Copyright (C) 2009, 2010 by the deal.II authors
+//
+//    This file is subject to QPL and may not be  distributed
+//    without copyright and license information. Please refer
+//    to the file deal.II/doc/license.html for the  text  and
+//    further information on this license.
+//
+//---------------------------------------------------------------------------
+
+
+// Test that DofRenumbering::hierarchical() gives the same DoFs independent of
+// the number of processors. We do this by constructing a vector where each
+// element depends on the location and the index. We output the l2_norm() of
+// that vector and hope the output is that same.
+
+
+#include "../tests.h"
+#include "coarse_grid_common.h"
+#include <deal.II/base/quadrature_lib.h>
+#include <deal.II/base/logstream.h>
+#include <deal.II/base/tensor.h>
+#include <deal.II/grid/tria.h>
+#include <deal.II/distributed/tria.h>
+#include <deal.II/grid/grid_generator.h>
+#include <deal.II/grid/grid_out.h>
+#include <deal.II/dofs/dof_handler.h>
+#include <deal.II/dofs/dof_handler.h>
+#include <deal.II/dofs/dof_tools.h>
+#include <deal.II/grid/tria_accessor.h>
+#include <deal.II/grid/tria_iterator.h>
+#include <deal.II/dofs/dof_accessor.h>
+#include <deal.II/lac/trilinos_vector.h>
+#include <deal.II/dofs/dof_renumbering.h>
+#include <deal.II/fe/fe_q.h>
+#include <deal.II/fe/fe_values.h>
+
+#include <fstream>
+#include <boost/concept_check.hpp>
+
+
+template<int dim>
+void test()
+{
+  unsigned int myid = Utilities::System::get_this_mpi_process (MPI_COMM_WORLD);
+
+  parallel::distributed::Triangulation<dim> tr (MPI_COMM_WORLD);
+
+  GridGenerator::hyper_cube (tr, -1.0, 1.0);
+  tr.refine_global (3);
+
+  for (typename Triangulation<dim>::active_cell_iterator
+       cell = tr.begin_active();
+       cell != tr.end(); ++cell)
+    if (!cell->is_ghost() && !cell->is_artificial())
+      if (cell->center().norm() < 0.3)
+        {
+          cell->set_refine_flag();
+        }
+
+  tr.execute_coarsening_and_refinement ();
+
+  DoFHandler<dim> dofh (tr);
+
+  static const FE_Q<dim> fe (1);
+  dofh.distribute_dofs (fe);
+  DoFRenumbering::hierarchical (dofh);
+
+  if (myid == 0)
+      deallog << "n_global_active_cells: " << tr.n_global_active_cells() << std::endl;
+
+  TrilinosWrappers::MPI::Vector vector;
+  vector.reinit (dofh.locally_owned_dofs(), MPI_COMM_WORLD);
+  {
+    ConstraintMatrix cm;
+    cm.close();
+    QGauss<dim>   quadrature_formula (2);
+    FEValues<dim> fe_values (fe, quadrature_formula, update_quadrature_points  |
+                             update_JxW_values | update_values);
+    const unsigned int dofs_per_cell = fe.dofs_per_cell;
+    std::vector<unsigned int> local_dof_indices (dofs_per_cell);
+    Vector<double> local_vector (dofs_per_cell);
+    const unsigned int   n_q_points      = quadrature_formula.size();
+
+    typename DoFHandler<dim>::active_cell_iterator
+    cell = dofh.begin_active(),
+           endc = dofh.end();
+    for (; cell != endc; ++cell)
+      if (cell->subdomain_id() == tr.locally_owned_subdomain())
+        {
+          fe_values.reinit (cell);
+          cell->get_dof_indices (local_dof_indices);
+          local_vector = 0;
+
+          for (unsigned int q = 0; q < n_q_points; ++q)
+            {
+              for (unsigned int i = 0; i < dofs_per_cell; ++i)
+                {
+                  local_vector (i) += fe_values.shape_value (i, q) *
+                                      1.0 * local_dof_indices[i] *
+                                      (fe_values.quadrature_point (q) [0] +
+                                       fe_values.quadrature_point (q).square())
+                                      * fe_values.JxW (q);
+                }
+            }
+          cm.distribute_local_to_global (local_vector, local_dof_indices, vector);
+        }
+    vector.compress();
+  }
+  double norm = vector.l2_norm();
+  if (myid == 0)
+    deallog << "Norm: " << norm << std::endl;
+}
+
+
+int main (int argc, char *argv[])
+{
+#ifdef DEAL_II_COMPILER_SUPPORTS_MPI
+  MPI_Init (&argc, &argv);
+#else
+  (void) argc;
+  (void) argv;
+#endif
+
+  unsigned int myid = Utilities::System::get_this_mpi_process (MPI_COMM_WORLD);
+
+
+  deallog.push (Utilities::int_to_string (myid));
+
+  if (myid == 0)
+    {
+      std::ofstream logfile (output_file_for_mpi ("renumber_z_order_01").c_str());
+      deallog.attach (logfile);
+      deallog.depth_console (0);
+      deallog.threshold_double (1.e-10);
+
+      deallog.push ("2d");
+      test<2>();
+      deallog.pop();
+    }
+  else
+    test<2>();
+
+#ifdef DEAL_II_COMPILER_SUPPORTS_MPI
+  MPI_Finalize();
+#endif
+}
diff --git a/tests/mpi/renumber_z_order_01/ncpu_1/cmp/generic b/tests/mpi/renumber_z_order_01/ncpu_1/cmp/generic
new file mode 100644
index 0000000000..dae0f36972
--- /dev/null
+++ b/tests/mpi/renumber_z_order_01/ncpu_1/cmp/generic
@@ -0,0 +1,3 @@
+
+DEAL:0:2d::n_global_active_cells: 76
+DEAL:0:2d::Norm: 27.5617
diff --git a/tests/mpi/renumber_z_order_01/ncpu_10/cmp/generic b/tests/mpi/renumber_z_order_01/ncpu_10/cmp/generic
new file mode 100644
index 0000000000..dae0f36972
--- /dev/null
+++ b/tests/mpi/renumber_z_order_01/ncpu_10/cmp/generic
@@ -0,0 +1,3 @@
+
+DEAL:0:2d::n_global_active_cells: 76
+DEAL:0:2d::Norm: 27.5617
diff --git a/tests/mpi/renumber_z_order_01/ncpu_4/cmp/generic b/tests/mpi/renumber_z_order_01/ncpu_4/cmp/generic
new file mode 100644
index 0000000000..dae0f36972
--- /dev/null
+++ b/tests/mpi/renumber_z_order_01/ncpu_4/cmp/generic
@@ -0,0 +1,3 @@
+
+DEAL:0:2d::n_global_active_cells: 76
+DEAL:0:2d::Norm: 27.5617