Added Benchmark

CMakeLists.txt

@@ -66,6 +66,11 @@ if(ENABLE_CONAN)
   run_conan()
 endif()
 
+option(ENABLE_BENCH "Build the Benchmarks" ON)
+if(ENABLE_BENCH)
+  add_subdirectory(benchmark)
+endif()
+
 if(ENABLE_TESTING)
   enable_testing()
   message("Building Tests.")

benchmark/CMakeLists.txt

@@ -0,0 +1,15 @@
+
+find_package(Eigen3)
+find_package(Catch2 REQUIRED)
+
+add_executable(benchmark bench.cpp)
+
+target_link_libraries(
+        benchmark
+        PRIVATE project_options
+        project_warnings
+        Eigen3::Eigen3
+        Catch2::Catch2
+        integratoren
+)
+

benchmark/bench.cpp

@@ -0,0 +1,32 @@
+//
+// Created by jholder on 24.10.21.
+//
+
+#define CATCH_CONFIG_MAIN
+#define CATCH_CONFIG_ENABLE_BENCHMARKING
+
+#include <catch2/catch.hpp>
+#include "Rod2d.hpp"
+#include "Integratoren2d_forceless.h"
+
+TEST_CASE("Euler - Baseline", "[benchmark]")
+{
+    Rod2d rod(1.0);
+    Simulation sim(0.01, Catch::rngSeed());
+    BENCHMARK("Euler without force")
+                {
+                    Integratoren2d_forceless::Set1_Euler(rod, sim);
+                };
+    BENCHMARK("Heun without force")
+                {
+                    Integratoren2d_forceless::Set2_Heun(rod, sim);
+                };
+    BENCHMARK("Exact without force")
+                {
+                    Integratoren2d_forceless::Set3_Exact(rod, sim);
+                };
+    BENCHMARK("BDAS without force")
+                {
+                    Integratoren2d_forceless::Set4_BDAS(rod, sim);
+                };
+}