Merge branch 'volk' into next

1 files changed, 96 insertions, 0 deletions

diff --git a/volk/lib/qa_32fc_square_dist_scalar_mult_aligned16.cc b/volk/lib/qa_32fc_square_dist_scalar_mult_aligned16.cc
new file mode 100644
index 000000000..f923d1d5c
--- /dev/null
+++ b/volk/lib/qa_32fc_square_dist_scalar_mult_aligned16.cc
@@ -0,0 +1,96 @@
+#include <volk/volk.h>
+#include <qa_32fc_square_dist_scalar_mult_aligned16.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <time.h>
+
+#define ERR_DELTA .0001
+#define NUM_ITERS 10000000
+#define VEC_LEN 64
+
+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_SSE3
+
+void qa_32fc_square_dist_scalar_mult_aligned16::t1(){
+  printf("sse3 not available... no test performed\n");
+}
+
+#else
+
+
+void qa_32fc_square_dist_scalar_mult_aligned16::t1(){
+  int i = 0;
+  
+  const int vlen = VEC_LEN;
+  
+  volk_environment_init();
+  int ret;
+  
+  float* target;
+  float* target_generic;
+  std::complex<float>* src0 ;
+  std::complex<float>* points;
+  float scalar;
+
+  ret = posix_memalign((void**)&points, 16, vlen << 3);
+  ret = posix_memalign((void**)&target, 16, vlen << 2);
+  ret = posix_memalign((void**)&target_generic, 16, vlen << 2);
+  ret = posix_memalign((void**)&src0, 16, 8);
+  
+  random_floats((float*)points, vlen * 2);
+  random_floats((float*)src0, 2);
+  random_floats(&scalar, 1);
+  
+  printf("32fc_square_dist_scalar_mult_aligned16\n");
+  
+  clock_t start, end;
+  double total;
+  
+  
+  start = clock();
+  for(int k = 0; k < NUM_ITERS; ++k) {
+    volk_32fc_square_dist_scalar_mult_aligned16_manual(target_generic, src0, points, scalar, vlen << 3, "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_32fc_square_dist_scalar_mult_aligned16_manual(target, src0, points, scalar, vlen << 3, "sse3");
+  }
+  
+  end = clock();  
+  total = (double)(end-start)/(double)CLOCKS_PER_SEC;
+  printf("sse3 time: %f\n", total);
+
+  
+  
+  for(i = 0; i < vlen; ++i) {
+    printf("generic: %f, sse3: %f\n", target_generic[i], target[i]);
+    CPPUNIT_ASSERT_DOUBLES_EQUAL(target[i], target_generic[i], fabs(target_generic[1]) * ERR_DELTA);//, target_generic[1] * ERR_DELTA);
+  }
+
+  free(target);
+  free(target_generic);
+  free(points);
+  free(src0);
+}
+
+#endif /*LV_HAVE_SSE3*/