Squashed 'third_party/boostorg/ublas/' content from commit e8607b3
Change-Id: Ia06afd642157a24e17fa9ddea28fb8601810b78e
git-subtree-dir: third_party/boostorg/ublas
git-subtree-split: e8607b3eea238e590eca93bfe498c21f470155c1
diff --git a/benchmarks/bench2/bench2.cpp b/benchmarks/bench2/bench2.cpp
new file mode 100644
index 0000000..43ba152
--- /dev/null
+++ b/benchmarks/bench2/bench2.cpp
@@ -0,0 +1,122 @@
+//
+// Copyright (c) 2000-2002
+// Joerg Walter, Mathias Koch
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+// The authors gratefully acknowledge the support of
+// GeNeSys mbH & Co. KG in producing this work.
+//
+
+#include "bench2.hpp"
+
+void header (std::string text) {
+ std::cout << text << std::endl;
+}
+
+template<class T>
+struct peak_c_plus {
+ typedef T value_type;
+
+ void operator () (int runs) const {
+ try {
+ static T s (0);
+ boost::timer t;
+ for (int i = 0; i < runs; ++ i) {
+ s += T (0);
+// sink_scalar (s);
+ }
+ footer<value_type> () (0, 1, runs, t.elapsed ());
+ }
+ catch (std::exception &e) {
+ std::cout << e.what () << std::endl;
+ }
+ }
+};
+template<class T>
+struct peak_c_multiplies {
+ typedef T value_type;
+
+ void operator () (int runs) const {
+ try {
+ static T s (1);
+ boost::timer t;
+ for (int i = 0; i < runs; ++ i) {
+ s *= T (1);
+// sink_scalar (s);
+ }
+ footer<value_type> () (0, 1, runs, t.elapsed ());
+ }
+ catch (std::exception &e) {
+ std::cout << e.what () << std::endl;
+ }
+ }
+};
+
+template<class T>
+void peak<T>::operator () (int runs) {
+ header ("peak");
+
+ header ("plus");
+ peak_c_plus<T> () (runs);
+
+ header ("multiplies");
+ peak_c_multiplies<T> () (runs);
+}
+
+
+template <typename scalar>
+void do_bench (std::string type_string, int scale)
+{
+ header (type_string);
+ peak<scalar> () (1000000 * scale);
+
+ header (type_string + ", 3");
+ bench_1<scalar, 3> () (1000000 * scale);
+ bench_2<scalar, 3> () (300000 * scale);
+ bench_3<scalar, 3> () (100000 * scale);
+
+ header (type_string + ", 10");
+ bench_1<scalar, 10> () (300000 * scale);
+ bench_2<scalar, 10> () (30000 * scale);
+ bench_3<scalar, 10> () (3000 * scale);
+
+ header (type_string + ", 30");
+ bench_1<scalar, 30> () (100000 * scale);
+ bench_2<scalar, 30> () (3000 * scale);
+ bench_3<scalar, 30> () (100 * scale);
+
+ header (type_string + ", 100");
+ bench_1<scalar, 100> () (30000 * scale);
+ bench_2<scalar, 100> () (300 * scale);
+ bench_3<scalar, 100> () (3 * scale);
+}
+
+int main (int argc, char *argv []) {
+
+ int scale = 1;
+ if (argc > 1)
+ scale = std::atoi (argv [1]);
+
+#ifdef USE_FLOAT
+ do_bench<float> ("FLOAT", scale);
+#endif
+
+#ifdef USE_DOUBLE
+ do_bench<double> ("DOUBLE", scale);
+#endif
+
+#ifdef USE_STD_COMPLEX
+#ifdef USE_FLOAT
+ do_bench<std::complex<float> > ("COMPLEX<FLOAT>", scale);
+#endif
+
+#ifdef USE_DOUBLE
+ do_bench<std::complex<double> > ("COMPLEX<DOUBLE>", scale);
+#endif
+#endif
+
+ return 0;
+}