opencv/modules/ocl/perf/perf_columnsum.cpp

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//	   Fangfang Bai fangfang@multicorewareinc.com
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#include "precomp.hpp"
#include <iomanip>

using namespace cv;
using namespace cv::ocl;
using namespace cvtest;
using namespace testing;
using namespace std;

///////////////////////////////////////////////////////////////////////////////
/// ColumnSum

#ifdef HAVE_OPENCL

////////////////////////////////////////////////////////////////////////
// ColumnSum

PARAM_TEST_CASE(ColumnSum)
{
	cv::Mat src;
	//std::vector<cv::ocl::Info> oclinfo;

	virtual void SetUp()
	{
		//int devnums = getDevice(oclinfo);
		//CV_Assert(devnums > 0);
	}
};

TEST_F(ColumnSum, Performance)
{
	cv::Size size(MWIDTH,MHEIGHT);
    cv::Mat src = randomMat(size, CV_32FC1);
    cv::ocl::oclMat d_dst;

	double totalgputick=0;
	double totalgputick_kernel=0;
	double t1=0;
	double t2=0;

	for(int j = 0; j < LOOP_TIMES+1; j ++)
	{

		t1 = (double)cvGetTickCount();//gpu start1

        cv::ocl::oclMat d_src(src);		

		t2=(double)cvGetTickCount();//kernel
		cv::ocl::columnSum(d_src,d_dst);
		t2 = (double)cvGetTickCount() - t2;//kernel

		cv::Mat cpu_dst;
		d_dst.download (cpu_dst);//download

		t1 = (double)cvGetTickCount() - t1;//gpu end1

		if(j == 0)
			continue;

		totalgputick=t1+totalgputick;
		totalgputick_kernel=t2+totalgputick_kernel;	

	}

	cout << "average gpu runtime is  " << totalgputick/((double)cvGetTickFrequency()* LOOP_TIMES *1000.) << "ms" << endl;
	cout << "average gpu runtime without data transfer is  " << totalgputick_kernel/((double)cvGetTickFrequency()* LOOP_TIMES *1000.) << "ms" << endl;



}



#endif