add test case mpi/tria_signals_02: count cell number via signals

diff --git a/tests/mpi/tria_signals_02.cc b/tests/mpi/tria_signals_02.cc
new file mode 100644 (file)
index 0000000..c2cfb7b
--- /dev/null
+++ b/tests/mpi/tria_signals_02.cc
@@ -0,0 +1,148 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2015 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.
+//
+// ---------------------------------------------------------------------
+
+
+#include "../tests.h"
+#include <deal.II/grid/tria.h>
+#include <deal.II/distributed/tria.h>
+#include <deal.II/grid/grid_generator.h>
+#include <deal.II/base/std_cxx11/bind.h>
+
+#include <fstream>
+#include <ostream>
+
+// Test on whether signals post_refinement_on_cell and pre_coarsening_on_cell
+// could catch all cell changes.
+// The test is designed to count cell number increase and decrease in signal
+// calls and then compare the result against n_active_cells reported by Tria
+// object. Absolute value change in n_active_cells is not concerned in this test.
+
+template<int dim, int spacedim>
+class SignalListener
+{
+public:
+  SignalListener(Triangulation<dim, spacedim> &tria_in)
+    :
+    n_active_cells(tria_in.n_active_cells()),
+    tria(tria_in)
+  {
+    tria_in.signals.post_refinement_on_cell.connect
+    (std_cxx11::bind (&SignalListener<dim, spacedim>::count_on_refine,
+                      this,
+                      std_cxx11::placeholders::_1));
+
+    tria_in.signals.pre_coarsening_on_cell.connect
+    (std_cxx11::bind (&SignalListener<dim, spacedim>::count_on_coarsen,
+                      this,
+                      std_cxx11::placeholders::_1));
+  }
+
+  int n_active_cell_gap()
+  {
+    return (n_active_cells -
+            static_cast<int> (tria.n_active_cells()));
+  }
+
+private:
+  void count_on_refine(const typename Triangulation<dim, spacedim>::cell_iterator &cell)
+  {
+    n_active_cells += cell->n_children();
+    --n_active_cells;
+
+    return;
+  }
+
+  void count_on_coarsen(const typename Triangulation<dim, spacedim>::cell_iterator &cell)
+  {
+    ++n_active_cells;
+    n_active_cells -= cell->n_children();
+
+    return;
+  }
+
+  int n_active_cells;
+  const Triangulation<dim, spacedim> &tria;
+};
+
+
+template<int dim, int spacedim>
+void test()
+{
+  typedef parallel::distributed::Triangulation<dim, spacedim> TriaType;
+
+  {
+    const std::string prefix = Utilities::int_to_string (dim, 1) +
+                               "d-" +
+                               Utilities::int_to_string (spacedim, 1)
+                               + "d";
+    deallog.push(prefix.c_str());
+  }
+
+  TriaType tria(MPI_COMM_WORLD);
+
+  GridGenerator::hyper_cube(tria);
+  SignalListener<dim, spacedim> count_cell_via_signal(tria);
+
+  tria.refine_global(2);
+
+  deallog << "n_cell_gap after refine : "
+          << count_cell_via_signal.n_active_cell_gap() << std::endl;
+
+  // Test signal on coarsening
+  {
+    typename TriaType::active_cell_iterator cell = tria.begin_active();
+    const typename TriaType::active_cell_iterator endc = tria.end();
+
+    for (; cell != endc; ++cell)
+      {
+        cell->set_coarsen_flag();
+      }
+    tria.execute_coarsening_and_refinement();
+  }
+
+  deallog << "n_cell_gap after coarsen : "
+          << count_cell_via_signal.n_active_cell_gap() << std::endl;
+
+  deallog.pop();
+  return;
+}
+
+int main(int argc, char *argv[])
+{
+  Utilities::MPI::MPI_InitFinalize mpi_initialization (argc, argv, /* int max_num_threads */ 1);
+  MPILogInitAll log;
+
+  // parallel::distributed::Triangulation<1, spacedim> is not valid.
+  {
+    const int dim = 2;
+    const int spacedim = 2;
+    test<dim,spacedim> ();
+  }
+
+  {
+    const int dim = 2;
+    const int spacedim = 3;
+    test<dim,spacedim> ();
+  }
+
+  {
+    const int dim = 3;
+    const int spacedim = 3;
+    test<dim,spacedim> ();
+  }
+
+  return (0);
+}
+

diff --git a/tests/mpi/tria_signals_02.mpirun=1.output b/tests/mpi/tria_signals_02.mpirun=1.output
new file mode 100644 (file)
index 0000000..3cd0b48
--- /dev/null
+++ b/tests/mpi/tria_signals_02.mpirun=1.output
@@ -0,0 +1,7 @@
+
+DEAL:0:2d-2d::n_cell_gap after refine : 0
+DEAL:0:2d-2d::n_cell_gap after coarsen : 0
+DEAL:0:2d-3d::n_cell_gap after refine : 0
+DEAL:0:2d-3d::n_cell_gap after coarsen : 0
+DEAL:0:3d-3d::n_cell_gap after refine : 0
+DEAL:0:3d-3d::n_cell_gap after coarsen : 0

diff --git a/tests/mpi/tria_signals_02.mpirun=11.output b/tests/mpi/tria_signals_02.mpirun=11.output
new file mode 100644 (file)
index 0000000..02486df
--- /dev/null
+++ b/tests/mpi/tria_signals_02.mpirun=11.output
@@ -0,0 +1,87 @@
+
+DEAL:0:2d-2d::n_cell_gap after refine : 0
+DEAL:0:2d-2d::n_cell_gap after coarsen : 0
+DEAL:0:2d-3d::n_cell_gap after refine : 0
+DEAL:0:2d-3d::n_cell_gap after coarsen : 0
+DEAL:0:3d-3d::n_cell_gap after refine : 0
+DEAL:0:3d-3d::n_cell_gap after coarsen : 0
+
+DEAL:1:2d-2d::n_cell_gap after refine : 0
+DEAL:1:2d-2d::n_cell_gap after coarsen : 0
+DEAL:1:2d-3d::n_cell_gap after refine : 0
+DEAL:1:2d-3d::n_cell_gap after coarsen : 0
+DEAL:1:3d-3d::n_cell_gap after refine : 0
+DEAL:1:3d-3d::n_cell_gap after coarsen : 0
+
+
+DEAL:2:2d-2d::n_cell_gap after refine : 0
+DEAL:2:2d-2d::n_cell_gap after coarsen : 0
+DEAL:2:2d-3d::n_cell_gap after refine : 0
+DEAL:2:2d-3d::n_cell_gap after coarsen : 0
+DEAL:2:3d-3d::n_cell_gap after refine : 0
+DEAL:2:3d-3d::n_cell_gap after coarsen : 0
+
+
+DEAL:3:2d-2d::n_cell_gap after refine : 0
+DEAL:3:2d-2d::n_cell_gap after coarsen : 0
+DEAL:3:2d-3d::n_cell_gap after refine : 0
+DEAL:3:2d-3d::n_cell_gap after coarsen : 0
+DEAL:3:3d-3d::n_cell_gap after refine : 0
+DEAL:3:3d-3d::n_cell_gap after coarsen : 0
+
+
+DEAL:4:2d-2d::n_cell_gap after refine : 0
+DEAL:4:2d-2d::n_cell_gap after coarsen : 0
+DEAL:4:2d-3d::n_cell_gap after refine : 0
+DEAL:4:2d-3d::n_cell_gap after coarsen : 0
+DEAL:4:3d-3d::n_cell_gap after refine : 0
+DEAL:4:3d-3d::n_cell_gap after coarsen : 0
+
+
+DEAL:5:2d-2d::n_cell_gap after refine : 0
+DEAL:5:2d-2d::n_cell_gap after coarsen : 0
+DEAL:5:2d-3d::n_cell_gap after refine : 0
+DEAL:5:2d-3d::n_cell_gap after coarsen : 0
+DEAL:5:3d-3d::n_cell_gap after refine : 0
+DEAL:5:3d-3d::n_cell_gap after coarsen : 0
+
+
+DEAL:6:2d-2d::n_cell_gap after refine : 0
+DEAL:6:2d-2d::n_cell_gap after coarsen : 0
+DEAL:6:2d-3d::n_cell_gap after refine : 0
+DEAL:6:2d-3d::n_cell_gap after coarsen : 0
+DEAL:6:3d-3d::n_cell_gap after refine : 0
+DEAL:6:3d-3d::n_cell_gap after coarsen : 0
+
+
+DEAL:7:2d-2d::n_cell_gap after refine : 0
+DEAL:7:2d-2d::n_cell_gap after coarsen : 0
+DEAL:7:2d-3d::n_cell_gap after refine : 0
+DEAL:7:2d-3d::n_cell_gap after coarsen : 0
+DEAL:7:3d-3d::n_cell_gap after refine : 0
+DEAL:7:3d-3d::n_cell_gap after coarsen : 0
+
+
+DEAL:8:2d-2d::n_cell_gap after refine : 0
+DEAL:8:2d-2d::n_cell_gap after coarsen : 0
+DEAL:8:2d-3d::n_cell_gap after refine : 0
+DEAL:8:2d-3d::n_cell_gap after coarsen : 0
+DEAL:8:3d-3d::n_cell_gap after refine : 0
+DEAL:8:3d-3d::n_cell_gap after coarsen : 0
+
+
+DEAL:9:2d-2d::n_cell_gap after refine : 0
+DEAL:9:2d-2d::n_cell_gap after coarsen : 0
+DEAL:9:2d-3d::n_cell_gap after refine : 0
+DEAL:9:2d-3d::n_cell_gap after coarsen : 0
+DEAL:9:3d-3d::n_cell_gap after refine : 0
+DEAL:9:3d-3d::n_cell_gap after coarsen : 0
+
+
+DEAL:10:2d-2d::n_cell_gap after refine : 0
+DEAL:10:2d-2d::n_cell_gap after coarsen : 0
+DEAL:10:2d-3d::n_cell_gap after refine : 0
+DEAL:10:2d-3d::n_cell_gap after coarsen : 0
+DEAL:10:3d-3d::n_cell_gap after refine : 0
+DEAL:10:3d-3d::n_cell_gap after coarsen : 0
+

diff --git a/tests/mpi/tria_signals_02.mpirun=4.output b/tests/mpi/tria_signals_02.mpirun=4.output
new file mode 100644 (file)
index 0000000..91621df
--- /dev/null
+++ b/tests/mpi/tria_signals_02.mpirun=4.output
@@ -0,0 +1,31 @@
+
+DEAL:0:2d-2d::n_cell_gap after refine : 0
+DEAL:0:2d-2d::n_cell_gap after coarsen : 0
+DEAL:0:2d-3d::n_cell_gap after refine : 0
+DEAL:0:2d-3d::n_cell_gap after coarsen : 0
+DEAL:0:3d-3d::n_cell_gap after refine : 0
+DEAL:0:3d-3d::n_cell_gap after coarsen : 0
+
+DEAL:1:2d-2d::n_cell_gap after refine : 0
+DEAL:1:2d-2d::n_cell_gap after coarsen : 0
+DEAL:1:2d-3d::n_cell_gap after refine : 0
+DEAL:1:2d-3d::n_cell_gap after coarsen : 0
+DEAL:1:3d-3d::n_cell_gap after refine : 0
+DEAL:1:3d-3d::n_cell_gap after coarsen : 0
+
+
+DEAL:2:2d-2d::n_cell_gap after refine : 0
+DEAL:2:2d-2d::n_cell_gap after coarsen : 0
+DEAL:2:2d-3d::n_cell_gap after refine : 0
+DEAL:2:2d-3d::n_cell_gap after coarsen : 0
+DEAL:2:3d-3d::n_cell_gap after refine : 0
+DEAL:2:3d-3d::n_cell_gap after coarsen : 0
+
+
+DEAL:3:2d-2d::n_cell_gap after refine : 0
+DEAL:3:2d-2d::n_cell_gap after coarsen : 0
+DEAL:3:2d-3d::n_cell_gap after refine : 0
+DEAL:3:2d-3d::n_cell_gap after coarsen : 0
+DEAL:3:3d-3d::n_cell_gap after refine : 0
+DEAL:3:3d-3d::n_cell_gap after coarsen : 0
+