Implemented everything pending Python chart generation

benchmark.cpp

@@ -14,25 +14,24 @@
 #include <vector>
 #include <string.h>
 
-
 extern void setup(int64_t N, uint64_t A[]);
 extern int64_t sum(int64_t N, uint64_t A[]);
 
 /* The benchmarking program */
-int main(int argc, char** argv) 
+int main(int argc, char **argv)
 {
    std::cout << std::fixed << std::setprecision(2);
 
-#define MAX_PROBLEM_SIZE 1 << 28  //  256M
-   std::vector<int64_t> problem_sizes{ MAX_PROBLEM_SIZE >> 5, MAX_PROBLEM_SIZE >> 4, MAX_PROBLEM_SIZE >> 3, MAX_PROBLEM_SIZE >> 2, MAX_PROBLEM_SIZE >> 1, MAX_PROBLEM_SIZE};
-   
+#define MAX_PROBLEM_SIZE 1 << 28 //  256M
+   std::vector<int64_t> problem_sizes{MAX_PROBLEM_SIZE >> 5, MAX_PROBLEM_SIZE >> 4, MAX_PROBLEM_SIZE >> 3, MAX_PROBLEM_SIZE >> 2, MAX_PROBLEM_SIZE >> 1, MAX_PROBLEM_SIZE};
+
    std::vector<uint64_t> A(MAX_PROBLEM_SIZE);
 
    int64_t t;
    int n_problems = problem_sizes.size();
 
    /* For each test size */
-   for (int64_t n : problem_sizes) 
+   for (int64_t n : problem_sizes)
    {
       printf("Working on problem size N=%lld \n", n);
 
@@ -40,13 +39,19 @@ int main(int argc, char** argv)
       setup(n, &A[0]);
 
       // insert your timer code here
+      std::chrono::time_point<std::chrono::high_resolution_clock> start_time = std::chrono::high_resolution_clock::now();
 
       // invoke method to perform the sum
       t = sum(n, &A[0]);
 
       // insert your end timer code here, and print out elapsed time for this problem size
+      std::chrono::time_point<std::chrono::high_resolution_clock> end_time = std::chrono::high_resolution_clock::now();
 
-      printf(" Sum result = %lld \n",t);
+      std::chrono::duration<double> elapsed = end_time - start_time;
+
+      std::cout << " Elapsed time is : " << elapsed.count() << " " << std::endl;
+
+      printf(" Sum result = %lld \n", t);
 
    } // end loop over problem sizes
 }

sum_direct.cpp

@@ -13,6 +13,7 @@ void
 setup(int64_t N, uint64_t A[])
 {
    printf(" inside direct_sum problem_setup, N=%lld \n", N);
+   result = 0;
 }
 
 int64_t
@@ -23,6 +24,6 @@ sum(int64_t N, uint64_t A[])
    {
       result += i;
    }
-   return 0;
+   return result;
 }
 

sum_vector.cpp

@@ -6,19 +6,29 @@
 #include <vector>
 #include <string.h>
 
-
+int64_t result;
 
 void 
 setup(int64_t N, uint64_t A[])
 {
    printf(" inside sum_vector problem_setup, N=%lld \n", N);
+   result = 0;
+   for (int64_t i = 0; i < N; i++)
+   {
+      A[i] = i;
+   }
+   
 }
 
 int64_t
 sum(int64_t N, uint64_t A[])
 {
    printf(" inside sum_vector perform_sum, N=%lld \n", N);
-
-   return 0;
+   for (int64_t i = 0; i < N; i++)
+   {
+      result += A[i];
+   }
+   
+   return result;
 }