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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/bessel.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 | typedef double T; | |
19 | #define SC_(x) static_cast<double>(x) | |
1e59de90 | 20 | static const std::array<std::array<T, 3>, 11> kv_data = { { |
7c673cae FG |
21 | { { SC_(0.5), SC_(0.875), SC_(0.558532231646608646115729767013630967055657943463362504577189) } }, |
22 | { { SC_(0.5), SC_(1.125), SC_(0.383621010650189547146769320487006220295290256657827220786527) } }, | |
23 | { { SC_(2.25), T(std::ldexp(1.0, -30)), SC_(5.62397392719283271332307799146649700147907612095185712015604e20) } }, | |
24 | { { SC_(5.5), T(3217) / 1024, SC_(1.30623288775012596319554857587765179889689223531159532808379) } }, | |
25 | { { SC_(-5.5), SC_(10.0), SC_(0.0000733045300798502164644836879577484533096239574909573072142667) } }, | |
26 | { { SC_(-5.5), SC_(100.0), SC_(5.41274555306792267322084448693957747924412508020839543293369e-45) } }, | |
27 | { { T(10240) / 1024, T(1) / 1024, SC_(2.35522579263922076203415803966825431039900000000993410734978e38) } }, | |
28 | { { T(10240) / 1024, SC_(10.0), SC_(0.00161425530039067002345725193091329085443750382929208307802221) } }, | |
29 | { { T(144793) / 1024, SC_(100.0), SC_(1.39565245860302528069481472855619216759142225046370312329416e-6) } }, | |
30 | { { T(144793) / 1024, SC_(200.0), SC_(9.11950412043225432171915100042647230802198254567007382956336e-68) } }, | |
31 | { { T(-144793) / 1024, SC_(50.0), SC_(1.30185229717525025165362673848737761549946548375142378172956e42) } }, | |
32 | } }; | |
1e59de90 | 33 | static const std::array<std::array<T, 3>, 5> kv_large_data = { { |
7c673cae FG |
34 | // Bug report https://svn.boost.org/trac/boost/ticket/5560: |
35 | { { SC_(-1.0), static_cast<T>(ldexp(0.5, -512)), SC_(2.68156158598851941991480499964116922549587316411847867554471e154) } }, | |
36 | { { SC_(1.0), static_cast<T>(ldexp(0.5, -512)), SC_(2.68156158598851941991480499964116922549587316411847867554471e154) } }, | |
37 | { { SC_(-1.125), static_cast<T>(ldexp(0.5, -512)), SC_(5.53984048006472105611199242328122729730752165907526178753978e173) } }, | |
38 | { { SC_(1.125), static_cast<T>(ldexp(0.5, -512)), SC_(5.53984048006472105611199242328122729730752165907526178753978e173) } }, | |
39 | { { SC_(0.5), static_cast<T>(ldexp(0.5, -683)), SC_(1.12284149973980088540335945247019177715948513804063794284101e103) } }, | |
40 | } }; | |
41 | ||
42 | int main() | |
43 | { | |
44 | #include "bessel_k_data.ipp" | |
45 | ||
46 | add_data(kv_data); | |
47 | add_data(kv_large_data); | |
48 | add_data(bessel_k_data); | |
49 | ||
50 | unsigned data_total = data.size(); | |
51 | ||
52 | std::cout << "Screening boost data:\n"; | |
53 | screen_data([](const std::vector<double>& v){ return boost::math::cyl_bessel_k(v[0], v[1]); }, [](const std::vector<double>& v){ return v[2]; }); | |
54 | ||
55 | #if defined(TEST_LIBSTDCXX) && !defined(COMPILER_COMPARISON_TABLES) | |
56 | std::cout << "Screening libstdc++ data:\n"; | |
57 | screen_data([](const std::vector<double>& v){ return std::tr1::cyl_bessel_k(v[0], v[1]); }, [](const std::vector<double>& v){ return v[2]; }); | |
58 | #endif | |
59 | #if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES) | |
60 | std::cout << "Screening libstdc++ data:\n"; | |
61 | screen_data([](const std::vector<double>& v){ return gsl_sf_bessel_Knu(v[0], v[1]); }, [](const std::vector<double>& v){ return v[2]; }); | |
62 | #endif | |
63 | #if defined(TEST_RMATH) && !defined(COMPILER_COMPARISON_TABLES) | |
64 | std::cout << "Screening libstdc++ data:\n"; | |
65 | screen_data([](const std::vector<double>& v){ return bessel_k(v[1], v[0], 1); }, [](const std::vector<double>& v){ return v[2]; }); | |
66 | #endif | |
67 | ||
68 | unsigned data_used = data.size(); | |
69 | std::string function = "cyl_bessel_k[br](" + boost::lexical_cast<std::string>(data_used) + "/" + boost::lexical_cast<std::string>(data_total) + " tests selected)"; | |
70 | std::string function_short = "cyl_bessel_k"; | |
71 | ||
72 | double time; | |
73 | ||
74 | time = exec_timed_test([](const std::vector<double>& v){ return boost::math::cyl_bessel_k(v[0], v[1]); }); | |
75 | std::cout << time << std::endl; | |
76 | #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_LIBSTDCXX)) | |
77 | report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, boost_name()); | |
78 | #endif | |
79 | report_execution_time(time, std::string("Compiler Comparison on ") + std::string(platform_name()), function_short, compiler_name() + std::string("[br]") + boost_name()); | |
80 | // | |
81 | // Boost again, but with promotion to long double turned off: | |
82 | // | |
83 | #if !defined(COMPILER_COMPARISON_TABLES) | |
84 | if(sizeof(long double) != sizeof(double)) | |
85 | { | |
86 | time = exec_timed_test([](const std::vector<double>& v){ return boost::math::cyl_bessel_k(v[0], v[1], boost::math::policies::make_policy(boost::math::policies::promote_double<false>())); }); | |
87 | std::cout << time << std::endl; | |
88 | #if !defined(COMPILER_COMPARISON_TABLES) && (defined(TEST_GSL) || defined(TEST_RMATH) || defined(TEST_LIBSTDCXX)) | |
89 | 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>"); | |
90 | #endif | |
91 | 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>"); | |
92 | } | |
93 | #endif | |
94 | ||
95 | ||
96 | #if defined(TEST_LIBSTDCXX) && !defined(COMPILER_COMPARISON_TABLES) | |
97 | time = exec_timed_test([](const std::vector<double>& v){ return std::tr1::cyl_bessel_k(v[0], v[1]); }); | |
98 | std::cout << time << std::endl; | |
99 | report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "tr1/cmath"); | |
100 | #endif | |
101 | #if defined(TEST_GSL) && !defined(COMPILER_COMPARISON_TABLES) | |
102 | time = exec_timed_test([](const std::vector<double>& v){ return gsl_sf_bessel_Knu(v[0], v[1]); }); | |
103 | std::cout << time << std::endl; | |
104 | report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "GSL " GSL_VERSION); | |
105 | #endif | |
106 | #if defined(TEST_RMATH) && !defined(COMPILER_COMPARISON_TABLES) | |
107 | time = exec_timed_test([](const std::vector<double>& v){ return bessel_k(v[1], v[0], 1); }); | |
108 | std::cout << time << std::endl; | |
109 | report_execution_time(time, std::string("Library Comparison with ") + std::string(compiler_name()) + std::string(" on ") + platform_name(), function, "Rmath " R_VERSION_STRING); | |
110 | #endif | |
111 | ||
112 | return 0; | |
113 | } | |
114 |