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#include <volk/volk_runtime.h>
#include <volk/volk.h>
#include <qa_32f_index_max_aligned16.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define ERR_DELTA (1e-4)
#define NUM_ITERS 1000000
#define VEC_LEN 3097
static float uniform() {
return 2.0 * ((float) rand() / RAND_MAX - 0.5); // uniformly (-1, 1)
}
static void
random_floats (float *buf, unsigned n)
{
unsigned int i = 0;
for (; i < n; i++) {
buf[i] = uniform () * 32767;
}
}
#ifndef LV_HAVE_SSE
void qa_32f_index_max_aligned16::t1(){
printf("sse not available... no test performed\n");
}
#else
void qa_32f_index_max_aligned16::t1(){
const int vlen = VEC_LEN;
volk_runtime_init();
volk_environment_init();
int ret;
unsigned int* target_sse4_1;
unsigned int* target_sse;
unsigned int* target_generic;
float* src0 ;
unsigned int i_target_sse4_1;
target_sse4_1 = &i_target_sse4_1;
unsigned int i_target_sse;
target_sse = &i_target_sse;
unsigned int i_target_generic;
target_generic = &i_target_generic;
ret = posix_memalign((void**)&src0, 16, vlen *sizeof(float));
random_floats((float*)src0, vlen);
printf("32f_index_max_aligned16\n");
clock_t start, end;
double total;
start = clock();
for(int k = 0; k < NUM_ITERS; ++k) {
volk_32f_index_max_aligned16_manual(target_generic, src0, vlen, "generic");
}
end = clock();
total = (double)(end-start)/(double)CLOCKS_PER_SEC;
printf("generic time: %f\n", total);
start = clock();
for(int k = 0; k < NUM_ITERS; ++k) {
volk_32f_index_max_aligned16_manual(target_sse, src0, vlen, "sse2");
}
end = clock();
total = (double)(end-start)/(double)CLOCKS_PER_SEC;
printf("sse time: %f\n", total);
start = clock();
for(int k = 0; k < NUM_ITERS; ++k) {
get_volk_runtime()->volk_32f_index_max_aligned16(target_sse4_1, src0, vlen);
}
end = clock();
total = (double)(end-start)/(double)CLOCKS_PER_SEC;
printf("sse4.1 time: %f\n", total);
printf("generic: %u, sse: %u, sse4.1: %u\n", target_generic[0], target_sse[0], target_sse4_1[0]);
CPPUNIT_ASSERT_EQUAL(target_generic[0], target_sse[0]);
CPPUNIT_ASSERT_EQUAL(target_generic[0], target_sse4_1[0]);
free(src0);
}
#endif /*LV_HAVE_SSE3*/
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