sheet 5

Sheet_5/bsp_5_2/main.cpp

@@ -0,0 +1,73 @@
+#include "bsp_5_2_lib.h"
+#include <iostream>
+#include <algorithm>
+using namespace std;
+// BSP 5_2
+
+int main()
+{
+    const string name1("data_1.txt");              // name of input file
+    const string name2("out.txt");               // name of output file
+    vector<int> v;
+
+    read_vector_from_file(name1, v);
+
+    float a, g, h, d, aex, gex, hex, dex, minvex, maxvex, control1(0);
+    int minvp, maxvp, control2(0);
+    
+    int NLOOPS = 100000;
+    
+    // testing parallel
+    double tstart1 = omp_get_wtime();
+    for(int i=0; i<NLOOPS; ++i)
+    {
+		meandevvec(v,a,g,h,d);
+		minmaxvec(v,minvp,maxvp);
+		control1 += a;
+		control2 += minvp;
+	}
+	double t1all = omp_get_wtime() - tstart1;
+	double t1 = t1all/NLOOPS;
+    
+    // testing execution policies
+    double tstart2 = omp_get_wtime();
+    for(int i=0; i<NLOOPS; ++i)
+    {
+		meandevmaxminvec(v,aex,gex,hex,dex,minvex,maxvex);
+		control1 += aex;
+		control2 += minvex;
+	}
+	double t2all = omp_get_wtime() - tstart2;
+	double t2 = t2all/NLOOPS;
+    
+    cout << "\nTiming for parallel\n";
+    cout << "Timing NLOOPS:			" << t1all << endl;
+    cout << "Timing per it. (sec):	" << t1 << endl;
+    
+    cout << "\n\nTiming for execution policies\n";
+    cout << "Timing NLOOPS:			" << t2all << endl;
+    cout << "Timing per it. (sec):	" << t2 << endl;
+
+
+    cout << "\n\nAuswertung (parallel)" << endl;
+    cout << "arithmetisches Mittel:	" << a << endl;
+    cout << "geometrisches Mittel: 	" << g << endl;
+    cout << "harmonisches Mittel: 	" << h << endl;
+    cout << "standard deviation: 	" << d << endl;
+    cout << "Minimum: 	" << minvp << endl;
+    cout << "Maximum: 	" << maxvp << endl;
+    
+    cout << endl;
+    cout << "\nAuswertung (execution policies)" << endl;
+    cout << "arithmetisches Mittel:	" << aex << endl;
+    cout << "geometrisches Mittel: 	" << gex << endl;
+    cout << "harmonisches Mittel: 	" << hex << endl;
+    cout << "standard deviation: 	" << dex << endl;
+    cout << "Minimum: 	" << minvex << endl;
+    cout << "Maximum: 	" << maxvex << endl;
+
+    vector<float> ve{a,g,h,d,minvp,maxvp};
+    write_vector_to_file(name2, ve);
+
+    return 0;
+}