From: Wolfgang Bangerth <bangerth@math.tamu.edu>
Date: Tue, 9 Jul 2013 14:45:02 +0000 (+0000)
Subject: More minimizing.
X-Git-Tag: v8.0.0~163
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ef3b5bd25a5648f43894d746cf2c96a38ca3c30e;p=dealii.git

More minimizing.

git-svn-id: https://svn.dealii.org/trunk@29957 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/tests/base/work_stream_03.cc b/tests/base/work_stream_03.cc
index 0dfb8655c3..eec7d02992 100644
--- a/tests/base/work_stream_03.cc
+++ b/tests/base/work_stream_03.cc
@@ -11,7 +11,6 @@
 //
 //----------------------------  work_stream_03.cc  ---------------------------
 
-
 // Moritz originally implemented thread local scratch objects for
 // WorkStream in r24748 but it led to failures in the testsuite. what
 // exactly went on was a mystery and this test is a first step in
@@ -29,9 +28,6 @@
 #include <deal.II/grid/tria.h>
 #include <deal.II/dofs/dof_handler.h>
 #include <deal.II/grid/grid_generator.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/fe/fe_nothing.h>
 #include <deal.II/fe/fe_values.h>
 
@@ -40,145 +36,125 @@
 
 char logname[] = "work_stream_03/output";
 
-
-
-template <int dim>
-double value (const Point<dim> &p)
-{
-  double val = 0;
-  for (unsigned int d=0; d<dim; ++d)
-    for (unsigned int i=0; i<=1; ++i)
-      val += std::pow (p[d], 1.*i);
-  return val;
-}
+template<int dim>
+  double
+  value(const Point<dim> &p)
+  {
+    double val = 0;
+    for (unsigned int d = 0; d < dim; ++d)
+      for (unsigned int i = 0; i <= 1; ++i)
+        val += std::pow(p[d], 1. * i);
+    return val;
+  }
 
 namespace
 {
-  template <int dim>
-  struct Scratch
-  {
-    Scratch (const FiniteElement<dim> &fe,
-             const Quadrature<dim> &quadrature)
-      :
-      fe_collection (fe),
-      quadrature_collection (quadrature),
-      x_fe_values (fe_collection,
-                   quadrature_collection,
-                   update_q_points),
-      rhs_values(quadrature_collection.size())
-    {}
-
-    Scratch (const Scratch &data)
-      :
-      fe_collection (data.fe_collection),
-      quadrature_collection (data.quadrature_collection),
-      x_fe_values (fe_collection,
-                   quadrature_collection,
-                   update_q_points),
-      rhs_values (data.rhs_values)
-    {}
-
-    const FiniteElement<dim>      &fe_collection;
-    const Quadrature<dim>                &quadrature_collection;
-
-    FEValues<dim> x_fe_values;
-
-    std::vector<double>                  rhs_values;
-  };
+  template<int dim>
+    struct Scratch
+    {
+      Scratch(const FiniteElement<dim> &fe, const Quadrature<dim> &quadrature) :
+          fe_collection(fe), quadrature_collection(quadrature), x_fe_values(
+              fe_collection, quadrature_collection, update_q_points), rhs_values(
+              quadrature_collection.size())
+      {
+      }
+
+      Scratch(const Scratch &data) :
+          fe_collection(data.fe_collection), quadrature_collection(
+              data.quadrature_collection), x_fe_values(fe_collection,
+              quadrature_collection, update_q_points), rhs_values(
+              data.rhs_values)
+      {
+      }
+
+      const FiniteElement<dim> &fe_collection;
+      const Quadrature<dim> &quadrature_collection;
+
+      FEValues<dim> x_fe_values;
 
+      std::vector<double> rhs_values;
+    };
 
   struct CopyData
   {
-    std::vector<double>    cell_rhs;
+    std::vector<double> cell_rhs;
   };
 }
 
-void zero_subrange (const unsigned int begin,
-                   const unsigned int end,
-                   std::vector<double> &dst)
+void
+zero_subrange(const unsigned int begin, const unsigned int end,
+    std::vector<double> &dst)
 {
-  for (unsigned int i=begin; i<end; ++i)
+  for (unsigned int i = begin; i < end; ++i)
     dst[i] = 0;
 }
 
-
-template<int dim, typename CellIterator>
+template<int dim>
   void
-  mass_assembler(const CellIterator &cell, Scratch<dim> &data,
-      CopyData &copy_data)
+  mass_assembler(const typename Triangulation<dim>::active_cell_iterator &cell,
+      Scratch<dim> &data, CopyData &copy_data)
   {
     data.x_fe_values.reinit(cell);
 
-    const Point<dim> q=data.x_fe_values.quadrature_point(0);
+    const Point<dim> q = data.x_fe_values.quadrature_point(0);
 
     // this appears to be the key: the following line overwrites some of the memory
     // in which we store the quadrature point location. if the line is moved down,
     // the comparison in the if() always succeeds...
-    parallel::apply_to_subranges
-    (0U, copy_data.cell_rhs.size(),
-        std_cxx1x::bind(&zero_subrange,
-            std_cxx1x::_1, std_cxx1x::_2, std_cxx1x::ref(copy_data.cell_rhs)),
-            1);
+    parallel::apply_to_subranges(0U, copy_data.cell_rhs.size(),
+        std_cxx1x::bind(&zero_subrange, std_cxx1x::_1, std_cxx1x::_2,
+            std_cxx1x::ref(copy_data.cell_rhs)), 1);
 
-    std::cout << (q != data.x_fe_values.quadrature_point(0) ? '.' : '*') << std::flush;
+    std::cout << (q != data.x_fe_values.quadrature_point(0) ? '.' : '*')
+        << std::flush;
 
     copy_data.cell_rhs[0] = value(data.x_fe_values.quadrature_point(0));
   }
 
-
-void copy_local_to_global (const CopyData &data,
-                           double *sum)
+void
+copy_local_to_global(const CopyData &data, double *sum)
 {
   *sum += data.cell_rhs[0];
 }
 
-
-void do_project ()
+void
+do_project()
 {
   static const int dim = 3;
 
-  Triangulation<dim>     triangulation;
+  Triangulation < dim > triangulation;
   GridGenerator::hyper_cube (triangulation);
-  triangulation.refine_global (2);
-
-  FE_Nothing<3> fe;
-  DoFHandler<dim>        dof_handler(triangulation);
-  dof_handler.distribute_dofs (fe);
+  triangulation.refine_global(2);
 
-  QMidpoint<dim> q;
+  FE_Nothing < dim > fe;
+  QMidpoint < dim > q;
 
-  for (unsigned int i=0; i<12; ++i)
+  for (unsigned int i = 0; i < 12; ++i)
     {
       std::vector<double> tmp;
 
       double sum = 0;
-      Scratch<dim> assembler_data (dof_handler.get_fe(), q);
+      Scratch<dim> assembler_data(fe, q);
       CopyData copy_data;
-      copy_data.cell_rhs.resize (8);
-      dealii::WorkStream::run (dof_handler.begin_active(),
-                       dof_handler.end(),
-                       &mass_assembler<dim, typename DoFHandler<dim>::active_cell_iterator>,
-                       std_cxx1x::bind(&
-                                       copy_local_to_global,
-                                       std_cxx1x::_1, &sum),
-                       assembler_data,
-                       copy_data,
-                       8,
-                       1);
-      printf ("\nCheck: %5.3f\n", sum);
+      copy_data.cell_rhs.resize(8);
+      WorkStream::run(triangulation.begin_active(), triangulation.end(),
+          &mass_assembler<dim>,
+          std_cxx1x::bind(&copy_local_to_global, std_cxx1x::_1, &sum),
+          assembler_data, copy_data, 8, 1);
+      printf("\nCheck: %5.3f\n", sum);
       deallog << sum << std::endl;
     }
 }
 
 
-int main ()
+int main()
 {
   std::ofstream logfile(logname);
-  deallog << std::setprecision (3);
+  deallog << std::setprecision(3);
 
   deallog.attach(logfile);
   deallog.depth_console(0);
   deallog.threshold_double(1.e-10);
 
-  do_project ();
+  do_project();
 }