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root / volk / lib / qa_32f_interleave_32fc_aligned16.cc @ 23914465

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#include <volk/volk.h>
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#include <qa_32f_interleave_32fc_aligned16.h>
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#include <volk/volk_32f_interleave_32fc_aligned16.h>
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#include <cstdlib>
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//test for sse
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#ifndef LV_HAVE_SSE
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void qa_32f_interleave_32fc_aligned16::t1() {
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  printf("sse not available... no test performed\n");
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}
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#else
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void qa_32f_interleave_32fc_aligned16::t1() {
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  volk_environment_init();
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  clock_t start, end;
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  double total;
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  const int vlen = 3201;
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  const int ITERS = 100000;
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  float input0[vlen] __attribute__ ((aligned (16)));
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  float input1[vlen] __attribute__ ((aligned (16)));
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  std::complex<float> output_generic[vlen] __attribute__ ((aligned (16)));
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  std::complex<float> output_sse[vlen] __attribute__ ((aligned (16)));
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  for(int i = 0; i < vlen; ++i) {   
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    input0[i] = ((float) (rand() - (RAND_MAX/2))) / static_cast<float>((RAND_MAX/2)); 
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    input1[i] = ((float) (rand() - (RAND_MAX/2))) / static_cast<float>((RAND_MAX/2)); 
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  }
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  printf("32f_interleave_32fc_aligned\n");
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  start = clock();
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  for(int count = 0; count < ITERS; ++count) {
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    volk_32f_interleave_32fc_aligned16_manual(output_generic, input0, input1, vlen, "generic");
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  }
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  end = clock();
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  total = (double)(end-start)/(double)CLOCKS_PER_SEC;
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  printf("generic_time: %f\n", total);
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  start = clock();
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  for(int count = 0; count < ITERS; ++count) {
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    volk_32f_interleave_32fc_aligned16_manual(output_sse, input0, input1, vlen, "sse");
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  }
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  end = clock();
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  total = (double)(end-start)/(double)CLOCKS_PER_SEC;
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  printf("sse_time: %f\n", total);
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  for(int i = 0; i < 1; ++i) {
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    //printf("inputs: %d, %d\n", input0[i*2], input0[i*2 + 1]);
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    //printf("generic... %d, ssse3... %d\n", output0[i], output1[i]);
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  }
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  for(int i = 0; i < vlen; ++i) {
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    //printf("%d...%d\n", output0[i], output01[i]);
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    CPPUNIT_ASSERT_DOUBLES_EQUAL(std::real(output_generic[i]), std::real(output_sse[i]), fabs(std::real(output_generic[i]))*1e-4);
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    CPPUNIT_ASSERT_DOUBLES_EQUAL(std::imag(output_generic[i]), std::imag(output_sse[i]), fabs(std::imag(output_generic[i]))*1e-4);
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  }
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}
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#endif