From 4fdd94e12c22a19bf99e3609778a84789a227c91 Mon Sep 17 00:00:00 2001
From: Markus Blatt <mblatt@dune-project.org>
Date: Wed, 12 Jan 2005 12:33:07 +0000
Subject: [PATCH] Added test for selection.
[[Imported from SVN: r136]]
---
istl/test/.gitignore | 3 +-
istl/test/Makefile.am | 6 ++-
istl/test/selectiontest.cc | 89 ++++++++++++++++++++++++++++++++++++++
3 files changed, 96 insertions(+), 2 deletions(-)
create mode 100644 istl/test/selectiontest.cc
diff --git a/istl/test/.gitignore b/istl/test/.gitignore
index 77477583b..c87b3d422 100644
--- a/istl/test/.gitignore
+++ b/istl/test/.gitignore
@@ -3,4 +3,5 @@ Makefile.in
.deps
.libs
semantic.cache
-indicestest
\ No newline at end of file
+indicestest
+selectiontest
\ No newline at end of file
diff --git a/istl/test/Makefile.am b/istl/test/Makefile.am
index 946c92a08..aa62cb3f6 100644
--- a/istl/test/Makefile.am
+++ b/istl/test/Makefile.am
@@ -1,7 +1,7 @@
# $Id $
if MPI
- TESTPROGS = indicestest
+ TESTPROGS = indicestest selectiontest
endif
# which tests to run
@@ -17,3 +17,7 @@ indicestest_SOURCES = indicestest.cc
indicestest_CXXFLAGS = $(MPI_CPPFLAGS)
indicestest_LDFLAGS = $(MPI_LDFLAGS) $(MPI_LIBS)
+selectiontest_SOURCES = selectiontest.cc
+
+selectiontest_CXXFLAGS = $(MPI_CPPFLAGS)
+selectiontest_LDFLAGS = $(MPI_LDFLAGS) $(MPI_LIBS)
diff --git a/istl/test/selectiontest.cc b/istl/test/selectiontest.cc
new file mode 100644
index 000000000..cb5824bcd
--- /dev/null
+++ b/istl/test/selectiontest.cc
@@ -0,0 +1,89 @@
+// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+// vi: set et ts=4 sw=2 sts=2:
+#include <iostream>
+#include <dune/istl/selection.hh>
+#include <dune/common/timer.hh>
+#include <dune/common/enumset.hh>
+#include <dune/istl/remoteindices.hh>
+
+enum GridFlags {
+ owner, overlap, border
+};
+
+template<class T>
+int meassure(const T& selection)
+{
+ /*
+ return meassure<1>(selection);
+ }
+
+ template<int LOOPS, class T>
+ int meassure(const T& selection)
+ {*/
+ typedef typename T::const_iterator iterator;
+
+ const iterator end = selection.end();
+ int count=0;
+ Dune::Timer timer;
+ timer.reset();
+ for(int i=0; i<100; i++)
+ for(iterator iter = selection.begin(); iter != end; ++iter)
+ count+=*iter;
+
+ std::cout<<" took "<< timer.elapsed()<<" seconds"<<std::endl;
+
+ return count;
+}
+
+template<int SIZE>
+void test()
+{
+ const int Nx = SIZE;
+ const int Ny = SIZE;
+
+ // Process configuration
+
+ Dune::IndexSet<int,Dune::ParallelLocalIndex<GridFlags> > distIndexSet;
+
+ distIndexSet.beginResize();
+
+ for(int y=0, i=0; y < Ny; y++)
+ for(int x=0; x < Nx; x++, i++) {
+ GridFlags flag = owner;
+ if(x==0 || x == Nx-1 || y ==0 || y==Ny-1)
+ flag = overlap;
+
+ distIndexSet.add(i, Dune::ParallelLocalIndex<GridFlags> (i, flag, true));
+ }
+
+ distIndexSet.endResize();
+
+ Dune::UncachedSelection<Dune::EnumItem<GridFlags,owner>,int,Dune::ParallelLocalIndex<GridFlags> >
+ ownerUncached(distIndexSet);
+
+ Dune::Selection<Dune::EnumItem<GridFlags,owner>,int,Dune::ParallelLocalIndex<GridFlags> >
+ ownerCached(distIndexSet);
+
+ Dune::UncachedSelection<Dune::EnumItem<GridFlags,overlap>,int,Dune::ParallelLocalIndex<GridFlags> >
+ overlapUncached(distIndexSet);
+
+ Dune::Selection<Dune::EnumItem<GridFlags,overlap>,int,Dune::ParallelLocalIndex<GridFlags> >
+ overlapCached(distIndexSet);
+
+ int count=0;
+
+ std::cout<<" Owner selection uncached:";
+ count+=meassure(ownerUncached);
+ std::cout<<" Owner selection cached:";
+ count+=meassure(ownerCached);
+ std::cout<<" Overlap selection uncached:";
+ count+=meassure(overlapUncached);
+ std::cout<<" Overlap selection cached:";
+ count+=meassure(overlapCached);
+ std::cout<<count<<std::endl;
+}
+
+int main()
+{
+ test<1000>();
+}
--
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