ceph/src/boost/libs/math/reporting/performance/test_erfc.cpp

   1 //  Copyright John Maddock 2015.
   2 //  Use, modification and distribution are subject to the
   3 //  Boost Software License, Version 1.0. (See accompanying file
   4 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #ifdef _MSC_VER
   7 #  pragma warning (disable : 4224)
   8 #endif
   9
  10 #include <boost/math/special_functions/erf.hpp>
  11 #include <boost/array.hpp>
  12 #include <boost/lexical_cast.hpp>
  13 #include "../../test/table_type.hpp"
  14 #include "table_helper.hpp"
  15 #include "performance.hpp"
  16 #include <iostream>
  17
  18 int main()
  19 {
  20    typedef double T;
  21 #define SC_(x) static_cast<double>(x)
  22 #  include "erf_small_data.ipp"
  23 #  include "erf_data.ipp"
  24 #  include "erf_large_data.ipp"
  25
  26    add_data(erf_small_data);
  27    add_data(erf_data);
  28    add_data(erf_large_data);
  29
  30    unsigned data_total = data.size();
  31
  32    screen_data([](const std::vector<double>& v){  return boost::math::erfc(v[0]);  }, [](const std::vector<double>& v){ return v[2];  });
  33
  34
  35 #if defined(TEST_C99) && !defined(COMPILER_COMPARISON_TABLES)
  36    screen_data([](const std::vector<double>& v){  return ::erfc(v[0]);  }, [](const std::vector<double>& v){ return v[2];  });
  37 #endif
  38 #if defined(TEST_LIBSTDCXX) && !defined(COMPILER_COMPARISON_TABLES)
  39    screen_data([](const std::vector<double>& v){  return std::tr1::erfc(v[0]);  }, [](const std::vector<double>& v){ return v[2];  });
  40 #endif
  41 #if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES)
  42    screen_data([](const std::vector<double>& v){  return gsl_sf_erfc(v[0]);  }, [](const std::vector<double>& v){ return v[2];  });
  43 #endif
  44
  45    unsigned data_used = data.size();
  46    std::string function = "erfc[br](" + boost::lexical_cast<std::string>(data_used) + "/" + boost::lexical_cast<std::string>(data_total) + " tests selected)";
  47    std::string function_short = "erfc";
  48
  49    double time = exec_timed_test([](const std::vector<double>& v){  return boost::math::erfc(v[0]);  });
  50    std::cout << time << std::endl;
  51 #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_C99) || defined(TEST_LIBSTDCXX))
  52    report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name());
  53 #endif
  54    report_execution_time(time, std::string("Compiler Comparison on ") + std::string(platform_name()), function_short, compiler_name() + std::string("[br]") + boost_name());
  55    //
  56    // Boost again, but with promotion to long double turned off:
  57    //
  58 #if !defined(COMPILER_COMPARISON_TABLES)
  59    if(sizeof(long double) != sizeof(double))
  60    {
  61       double time = exec_timed_test([](const std::vector<double>& v){  return boost::math::erfc(v[0], boost::math::policies::make_policy(boost::math::policies::promote_double<false>()));  });
  62       std::cout << time << std::endl;
  63 #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_C99) || defined(TEST_LIBSTDCXX))
  64       report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name() + "[br]promote_double<false>");
  65 #endif
  66       report_execution_time(time, std::string("Compiler Comparison on ") + std::string(platform_name()), function_short, compiler_name() + std::string("[br]") + boost_name() + "[br]promote_double<false>");
  67    }
  68 #endif
  69
  70
  71 #if defined(TEST_C99) && !defined(COMPILER_COMPARISON_TABLES)
  72    time = exec_timed_test([](const std::vector<double>& v){  return ::erfc(v[0]);  });
  73    std::cout << time << std::endl;
  74    report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "math.h");
  75 #endif
  76
  77 #if defined(TEST_LIBSTDCXX) && !defined(COMPILER_COMPARISON_TABLES)
  78    time = exec_timed_test([](const std::vector<double>& v){  return std::tr1::erfc(v[0]);  });
  79    std::cout << time << std::endl;
  80    report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "tr1/cmath");
  81 #endif
  82 #if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES)
  83    time = exec_timed_test([](const std::vector<double>& v){  return gsl_sf_erfc(v[0]);  });
  84    std::cout << time << std::endl;
  85    report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "GSL " GSL_VERSION);
  86 #endif
  87
  88
  89    return 0;
  90 }
  91