Ex8 and minor improvements

sheet3/6/main.cpp

@@ -139,4 +139,4 @@ int main(int argc, char **argv)
 
 
 return 0;
-}  // memory for x and y will be deallocated by their destructors
+}  

sheet3/6/output.txt

@@ -0,0 +1,24 @@
+g++ -c -g -O0 -funroll-all-loops -std=c++17 -Wall -pedantic -Wextra -Weffc++ -Woverloaded-virtual -Wfloat-equal -Wshadow -Wredundant-decls -Winline -fmax-errors=1  -flto -o main.o main.cpp
+g++ -c -g -O0 -funroll-all-loops -std=c++17 -Wall -pedantic -Wextra -Weffc++ -Woverloaded-virtual -Wfloat-equal -Wshadow -Wredundant-decls -Winline -fmax-errors=1  -flto -o mylib.o mylib.cpp
+g++ -c -g -O0 -funroll-all-loops -std=c++17 -Wall -pedantic -Wextra -Weffc++ -Woverloaded-virtual -Wfloat-equal -Wshadow -Wredundant-decls -Winline -fmax-errors=1  -flto -o benchmark.o benchmark.cpp
+g++  main.o mylib.o benchmark.o  -g -O0  -llapack -lblas -flto -o main.GCC_
+./main.GCC_ 
+
+===== Benchmark A =====
+<xA,yA> = 1.4e+06
+Timing in sec. : 0.000900578
+GFLOPS         : 2.89559
+GiByte/s       : 23.1647
+
+===== Benchmark B =====
+1.7e+07
+bytes: 2.31472e+07
+Timing in sec. : 0.000687268
+GFLOPS         : 7.83252
+GiByte/s       : 31.3669
+
+===== Benchmark C =====
+bytes: 2.4e+07
+Timing in sec. : 0.0151789
+GFLOPS         : 122.713
+GiByte/s       : 1.47255