//vdCos		Computation of the cosine of vector elements
void klVSLCos(klVector<double>& v,klVector<double>& ans)
{
	const __int64_t n = v.getColumns();


	vdCos( n,  v.getMemory(),ans.getMemory());

}
Exemple #2
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void hard_mkl()
{
    /*char *results_file = "hard_mkl.txt";
    FILE *res;
    if((res=fopen(results_file, "w"))==NULL)
    {
        printf("Can't open file %s.\n", results_file);
        exit(1);
    }*/
    for(int i = 10; i <= ARRAY_SIZE; i*=10)
    {
	VSLStreamStatePtr stream;
	vslNewStream( &stream, VSL_BRNG_MT19937, i*time(0) );
	double *ar1, *ar2, *ar3, *ar4, *ar5, *ar6;
        ar1 = (double *)malloc(i*sizeof(double));
        ar2 = (double *)malloc(i*sizeof(double));
        ar3 = (double *)malloc(i*sizeof(double));
        ar4 = (double *)malloc(i*sizeof(double));
        ar5 = (double *)malloc(i*sizeof(double));
        ar6 = (double *)malloc(i*sizeof(double));
	vdRngGaussian( VSL_RNG_METHOD_GAUSSIAN_BOXMULLER, stream,
	                i, ar1, 1.0, 3.0 );
	vdRngGaussian( VSL_RNG_METHOD_GAUSSIAN_BOXMULLER, stream,
			i, ar2, 1.0, 3.0 );
	double start = omp_get_wtime();
	for(int j = 0; j < EXPERIMENTS_NUM; j++)
	{
		vdCos (i, ar1, ar3);
		vdLn  (i, ar1, ar4);
		vdPow (i, ar1, ar2, ar5);
		vdCosh(i, ar2, ar6);
	}
	double end = omp_get_wtime();
	free(ar1); free(ar2); free(ar3); free(ar4); free(ar5); free(ar6);
	//fprintf(res, "%lf\n", end-start);
	printf("%lf, i=%d\n", end-start, i);
	vslDeleteStream( &stream );
    }
    //fclose(res);
}