From 7e4f513884d4396be932a353650bfc9f4d494efc Mon Sep 17 00:00:00 2001
From: bangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Sat, 9 Mar 2013 12:46:30 +0000
Subject: [PATCH] New test.

git-svn-id: https://svn.dealii.org/trunk@28838 0785d39b-7218-0410-832d-ea1e28bc413d
---
 tests/mpi/refinement_listener_01.cc           | 113 ++++++++++++++++++
 .../ncpu_10/cmp/generic                       |   7 ++
 .../ncpu_20/cmp/generic                       |   7 ++
 .../refinement_listener_01/ncpu_4/cmp/generic |   7 ++
 4 files changed, 134 insertions(+)
 create mode 100644 tests/mpi/refinement_listener_01.cc
 create mode 100644 tests/mpi/refinement_listener_01/ncpu_10/cmp/generic
 create mode 100644 tests/mpi/refinement_listener_01/ncpu_20/cmp/generic
 create mode 100644 tests/mpi/refinement_listener_01/ncpu_4/cmp/generic

diff --git a/tests/mpi/refinement_listener_01.cc b/tests/mpi/refinement_listener_01.cc
new file mode 100644
index 0000000000..38cc730408
--- /dev/null
+++ b/tests/mpi/refinement_listener_01.cc
@@ -0,0 +1,113 @@
+//---------------------------------------------------------------------------
+//    $Id$
+//    Version: $Name$
+//
+//    Copyright (C) 2009, 2010, 2013 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.
+//
+//---------------------------------------------------------------------------
+
+
+// Create a mesh and attach a function to the signal that is triggered
+// whenever we refine the mesh. count how often it is called on each
+// processor. (note: this is more than once per refinement cycle because we
+// have to re-balance and rebuild the mesh.)
+
+#include "../tests.h"
+#include <deal.II/base/logstream.h>
+#include <deal.II/base/tensor.h>
+#include <deal.II/grid/tria.h>
+#include <deal.II/lac/vector.h>
+#include <deal.II/distributed/tria.h>
+#include <deal.II/distributed/grid_refinement.h>
+#include <deal.II/grid/tria_accessor.h>
+#include <deal.II/grid/grid_generator.h>
+#include <deal.II/grid/grid_out.h>
+#include <deal.II/grid/grid_tools.h>
+#include <deal.II/base/utilities.h>
+
+
+#include <fstream>
+
+int counter = 0;
+void listener ()
+{
+  ++counter;
+}
+
+
+void test()
+{
+  unsigned int myid = Utilities::MPI::this_mpi_process (MPI_COMM_WORLD);
+
+  parallel::distributed::Triangulation<2> tr(MPI_COMM_WORLD);
+  GridGenerator::hyper_cube(tr);
+  tr.signals.post_refinement.connect (&listener);
+
+  // try some global refinement
+  counter = 0;
+  tr.refine_global (1);
+  if (myid == 0)
+    deallog << "refine_global(1) results in a total of " << counter
+	    << std::endl;
+
+  counter = 0;
+  tr.refine_global (3);
+  if (myid == 0)
+    deallog << "refine_global(3) results in a total of " << counter
+	    << std::endl;
+
+
+  // now also find the bottom left corner of the domain and, on the processor
+  // that owns this cell, refine it 4 times
+  for (unsigned int i=0; i<4; ++i)
+    {
+      counter = 0;
+      Triangulation<2>::cell_iterator cell = tr.begin(0);
+      while (cell->has_children())
+	cell = cell->child(0);
+      if (cell->is_locally_owned())
+	cell->set_refine_flag();
+      tr.execute_coarsening_and_refinement ();
+      if (myid == 0)
+	deallog << "local refinement results in a total of " << counter
+		<< 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::MPI::this_mpi_process (MPI_COMM_WORLD);
+
+
+  deallog.push(Utilities::int_to_string(myid));
+
+  if (myid == 0)
+    {
+      std::ofstream logfile(output_file_for_mpi("refinement_listener_01").c_str());
+      deallog.attach(logfile);
+      deallog.depth_console(0);
+      deallog.threshold_double(1.e-10);
+
+      test();
+    }
+  else
+    test();
+
+
+#ifdef DEAL_II_COMPILER_SUPPORTS_MPI
+  MPI_Finalize();
+#endif
+}
diff --git a/tests/mpi/refinement_listener_01/ncpu_10/cmp/generic b/tests/mpi/refinement_listener_01/ncpu_10/cmp/generic
new file mode 100644
index 0000000000..6bba3c5970
--- /dev/null
+++ b/tests/mpi/refinement_listener_01/ncpu_10/cmp/generic
@@ -0,0 +1,7 @@
+
+DEAL:0::refine_global(1) results in a total of 1
+DEAL:0::refine_global(3) results in a total of 7
+DEAL:0::local refinement results in a total of 2
+DEAL:0::local refinement results in a total of 2
+DEAL:0::local refinement results in a total of 2
+DEAL:0::local refinement results in a total of 2
diff --git a/tests/mpi/refinement_listener_01/ncpu_20/cmp/generic b/tests/mpi/refinement_listener_01/ncpu_20/cmp/generic
new file mode 100644
index 0000000000..6bba3c5970
--- /dev/null
+++ b/tests/mpi/refinement_listener_01/ncpu_20/cmp/generic
@@ -0,0 +1,7 @@
+
+DEAL:0::refine_global(1) results in a total of 1
+DEAL:0::refine_global(3) results in a total of 7
+DEAL:0::local refinement results in a total of 2
+DEAL:0::local refinement results in a total of 2
+DEAL:0::local refinement results in a total of 2
+DEAL:0::local refinement results in a total of 2
diff --git a/tests/mpi/refinement_listener_01/ncpu_4/cmp/generic b/tests/mpi/refinement_listener_01/ncpu_4/cmp/generic
new file mode 100644
index 0000000000..76a26b7779
--- /dev/null
+++ b/tests/mpi/refinement_listener_01/ncpu_4/cmp/generic
@@ -0,0 +1,7 @@
+
+DEAL:0::refine_global(1) results in a total of 2
+DEAL:0::refine_global(3) results in a total of 6
+DEAL:0::local refinement results in a total of 2
+DEAL:0::local refinement results in a total of 2
+DEAL:0::local refinement results in a total of 2
+DEAL:0::local refinement results in a total of 2
-- 
2.39.5