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#include <volk/volk_runtime.h>
#include <volk/volk.h>
#include <qa_32f_power_aligned16.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>
#define ERR_DELTA (1e-4)
//test for sse
static float uniform() {
return 2.0 * ((float) rand() / RAND_MAX - 0.5); // uniformly (-1, 1)
}
static void
random_floats (float *buf, unsigned n)
{
for (unsigned i = 0; i < n; i++)
buf[i] = uniform ();
}
#ifdef LV_HAVE_SSE
void qa_32f_power_aligned16::t1() {
volk_runtime_init();
const int vlen = 2046;
const int ITERS = 10000;
volk_environment_init();
int ret;
clock_t start, end;
double total;
float* input;
int i;
float* result_generic;
float* result_sse;
float* result_sse4_1;
ret = posix_memalign((void**)&input, 16, vlen * sizeof(float));
ret = posix_memalign((void**)&result_generic, 16, vlen * sizeof(float));
ret = posix_memalign((void**)&result_sse, 16, vlen * sizeof(float));
ret = posix_memalign((void**)&result_sse4_1, 16, vlen * sizeof(float));
random_floats((float*)input, vlen);
const float power = 3;
printf("32f_power_aligned16\n");
start = clock();
for(int count = 0; count < ITERS; ++count) {
volk_32f_power_aligned16_manual(result_generic, input, power, vlen, "generic");
}
end = clock();
total = (double)(end-start)/(double)CLOCKS_PER_SEC;
printf("generic_time: %f\n", total);
start = clock();
for(int count = 0; count < ITERS; ++count) {
volk_32f_power_aligned16_manual(result_sse, input, power, vlen, "sse");
}
end = clock();
total = (double)(end-start)/(double)CLOCKS_PER_SEC;
printf("sse_time: %f\n", total);
start = clock();
for(int count = 0; count < ITERS; ++count) {
get_volk_runtime()->volk_32f_power_aligned16(result_sse4_1, input, power, vlen);
}
end = clock();
total = (double)(end-start)/(double)CLOCKS_PER_SEC;
printf("sse4.1_time: %f\n", total);
for(i = 0; i < vlen; i++){
//printf("%d %e -> %e %e %e\n", i, input[i], result_generic[i], result_sse[i], result_sse4_1[i]);
CPPUNIT_ASSERT_DOUBLES_EQUAL(result_generic[i], result_sse[i], fabs(result_generic[i])* ERR_DELTA);
CPPUNIT_ASSERT_DOUBLES_EQUAL(result_generic[i], result_sse4_1[i], fabs(result_generic[i])* ERR_DELTA);
}
free(input);
free(result_generic);
free(result_sse);
}
#else
void qa_32f_power_aligned16::t1() {
printf("sse not available... no test performed\n");
}
#endif /* LV_HAVE_SSE */
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