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#include <iostream>
#include "asterics_hpc.h"
#include "barycentre_vectorizeSplit.h"
using namespace std;
///Get the number of cycles per elements of the reduction
/** @param nbElement : number of elements of the tables
* @param nbRepetition : number of repetition to evaluate the function reduction
*/
void evaluateBarycentre(long unsigned int nbElement, long unsigned int nbRepetition){
float * tabX = (float*)asterics_malloc(sizeof(float)*nbElement);
float * tabY = (float*)asterics_malloc(sizeof(float)*nbElement);
float * tabA = (float*)asterics_malloc(sizeof(float)*nbElement);
for(long unsigned int i(0lu); i < nbElement; ++i){
tabX[i] = (float)(i*32lu%17lu);
tabY[i] = (float)(i*77lu%31lu);
tabA[i] = (float)(i*73lu%27lu);
}
float gx(0.0f), gy(0.0f);
long unsigned int beginTime(rdtsc());
for(long unsigned int i(0lu); i < nbRepetition; ++i){
barycentre(gx, gy, tabX, tabY, tabA, nbElement);
}
long unsigned int elapsedTime((double)(rdtsc() - beginTime)/((double)nbRepetition));
double cyclePerElement(((double)elapsedTime)/((double)nbElement));
cout << "evaluateBarycentre : nbElement = "<<nbElement<<", cyclePerElement = " << cyclePerElement << " cy/el, elapsedTime = " << elapsedTime << " cy" << endl;
cerr << nbElement << "\t" << cyclePerElement << "\t" << elapsedTime << endl;
asterics_free(tabA);
asterics_free(tabY);
asterics_free(tabX);
}
int main(int argc, char** argv){
cout << "Barycentre vectorize" << endl;
evaluateBarycentre(1000lu, 1000000lu);
evaluateBarycentre(2000lu, 1000000lu);
evaluateBarycentre(3000lu, 1000000lu);
evaluateBarycentre(5000lu, 1000000lu);
evaluateBarycentre(10000lu, 1000000lu);
return 0;
}
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