bfs benchmark

benchmarks/opencl/bfs/util.h

@@ -0,0 +1,72 @@
+#ifndef _C_UTIL_
+#define _C_UTIL_
+#include <math.h>
+#include <iostream>
+
+//-------------------------------------------------------------------
+//--initialize array with maximum limit
+//-------------------------------------------------------------------
+template<typename datatype>
+void fill(datatype *A, const int n, const datatype maxi){
+    for (int j = 0; j < n; j++) 
+    {
+        A[j] = ((datatype) maxi * (rand() / (RAND_MAX + 1.0f)));
+    }
+}
+
+//--print matrix
+template<typename datatype>
+void print_matrix(datatype *A, int height, int width){
+	for(int i=0; i<height; i++){
+		for(int j=0; j<width; j++){
+			int idx = i*width + j;
+			std::cout<<A[idx]<<" ";
+		}
+		std::cout<<std::endl;
+	}
+
+	return;
+}
+//-------------------------------------------------------------------
+//--verify results
+//-------------------------------------------------------------------
+#define MAX_RELATIVE_ERROR  .002
+template<typename datatype>
+void verify_array(const datatype *cpuResults, const datatype *gpuResults, const int size){
+
+    char passed = true; 
+#pragma omp parallel for
+    for (int i=0; i<size; i++){
+      if (fabs(cpuResults[i] - gpuResults[i]) / cpuResults[i] > MAX_RELATIVE_ERROR){
+         passed = false; 
+      }
+    }
+    if (passed){
+        std::cout << "--cambine:passed:-)" << endl;
+    }
+    else{
+        std::cout << "--cambine: failed:-(" << endl;
+    }
+    return ;
+}
+template<typename datatype>
+void compare_results(const datatype *cpu_results, const datatype *gpu_results, const int size){
+
+    char passed = true; 
+//#pragma omp parallel for
+    for (int i=0; i<size; i++){
+      if (cpu_results[i]!=gpu_results[i]){
+         passed = false; 
+      }
+    }
+    if (passed){
+        std::cout << "--cambine:passed:-)" << endl;
+    }
+    else{
+        std::cout << "--cambine: failed:-(" << endl;
+    }
+    return ;
+}
+
+#endif
+