Initial checkin for VOLK - Vector-Optimized Library of Kernels. This is a new SIMD library.

It currently stands by itself under the GNU Radio tree and can be used separately. We will integrate the build process into GNU Raio and start building off of its functionality over time.

1 files changed, 89 insertions, 0 deletions

diff --git a/volk/lib/qa_16s_add_quad_aligned16.cc b/volk/lib/qa_16s_add_quad_aligned16.cc
new file mode 100644
index 000000000..c3005c1be
--- /dev/null
+++ b/volk/lib/qa_16s_add_quad_aligned16.cc
@@ -0,0 +1,89 @@
+#include <volk/volk.h>
+#include <qa_16s_add_quad_aligned16.h>
+#include <volk/volk_16s_add_quad_aligned16.h>
+#include <cstdlib>
+#include <time.h>
+//test for sse2
+
+#ifndef LV_HAVE_SSE2
+
+void qa_16s_add_quad_aligned16::t1() {
+  printf("sse2 not available... no test performed\n");
+}
+
+#else
+
+
+
+void qa_16s_add_quad_aligned16::t1() {
+  
+  volk_environment_init();
+  clock_t start, end;
+  double total;
+  const int vlen = 3200;
+  const int ITERS = 100000;
+  short input0[vlen] __attribute__ ((aligned (16)));
+  short input1[vlen] __attribute__ ((aligned (16)));
+  short input2[vlen] __attribute__ ((aligned (16)));
+  short input3[vlen] __attribute__ ((aligned (16)));
+  short input4[vlen] __attribute__ ((aligned (16)));
+  
+  short output0[vlen] __attribute__ ((aligned (16)));
+  short output1[vlen] __attribute__ ((aligned (16)));
+  short output2[vlen] __attribute__ ((aligned (16)));
+  short output3[vlen] __attribute__ ((aligned (16)));
+  short output01[vlen] __attribute__ ((aligned (16)));
+  short output11[vlen] __attribute__ ((aligned (16)));
+  short output21[vlen] __attribute__ ((aligned (16)));
+  short output31[vlen] __attribute__ ((aligned (16)));
+
+  for(int i = 0; i < vlen; ++i) {
+    short plus0 = ((short) (rand() - (RAND_MAX/2))) >> 2;
+    short minus0 = ((short) (rand() - (RAND_MAX/2))) >> 2;
+    short plus1 = ((short) (rand() - (RAND_MAX/2))) >> 2;
+    short minus1 = ((short) (rand() - (RAND_MAX/2))) >> 2;
+    short plus2 = ((short) (rand() - (RAND_MAX/2))) >> 2;
+    short minus2 = ((short) (rand() - (RAND_MAX/2))) >> 2;
+    short plus3 = ((short) (rand() - (RAND_MAX/2))) >> 2;
+    short minus3 = ((short) (rand() - (RAND_MAX/2))) >> 2;
+    short plus4 = ((short) (rand() - (RAND_MAX/2))) >> 2;
+    short minus4 = ((short) (rand() - (RAND_MAX/2))) >> 2;
+    
+    input0[i] = plus0 - minus0;
+    input1[i] = plus1 - minus1;
+    input2[i] = plus2 - minus2;
+    input3[i] = plus3 - minus3;
+    input4[i] = plus4 - minus4;
+    
+  }
+  printf("16s_add_quad_aligned\n");
+
+  start = clock();
+  for(int count = 0; count < ITERS; ++count) {
+    volk_16s_add_quad_aligned16_manual(output0, output1, output2, output3, input0, input1, input2, input3, input4, vlen << 1 , "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_16s_add_quad_aligned16_manual(output01, output11, output21, output31, input0, input1, input2, input3, input4, vlen << 1 , "sse2");
+  }
+  end = clock();
+  total = (double)(end-start)/(double)CLOCKS_PER_SEC;
+  printf("sse2_time: %f\n", total);
+  for(int i = 0; i < 1; ++i) {
+    //printf("inputs: %d, %d\n", input0[i*2], input0[i*2 + 1]);
+    //printf("generic... %d, ssse3... %d\n", output0[i], output1[i]);
+  }
+  
+  for(int i = 0; i < vlen; ++i) {
+    //printf("%d...%d\n", output0[i], output01[i]);
+    CPPUNIT_ASSERT_EQUAL(output0[i], output01[i]);
+    CPPUNIT_ASSERT_EQUAL(output1[i], output11[i]);
+    CPPUNIT_ASSERT_EQUAL(output2[i], output21[i]);
+    CPPUNIT_ASSERT_EQUAL(output3[i], output31[i]);
+  }
+}
+
+#endif