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  26 <div class="titlepage"><div><div><h3 class="title">
  27 <a name="boost_multiprecision.perf.realworld"></a><a class="link" href="realworld.html" title="Floating-Point Real World Tests">Floating-Point Real
  28       World Tests</a>
  29 </h3></div></div></div>
  30 <p>
  31         These tests test the total time taken to execute all of Boost.Math's test
  32         cases for these functions. In each case the best performing library gets
  33         a relative score of 1, with the total execution time given in brackets. The
  34         first three libraries listed are the various floating-point types provided
  35         by this library, while for comparison, two popular C++ front-ends to <a href="http://www.mpfr.org" target="_top">MPFR</a> ( <a href="http://math.berkeley.edu/~wilken/code/gmpfrxx/" target="_top">mpfr_class</a>
  36         and <a href="http://www.holoborodko.com/pavel/mpfr/" target="_top">mpreal</a>) are
  37         also shown.
  38       </p>
  39 <div class="table">
  40 <a name="boost_multiprecision.perf.realworld.bessel_function_performance"></a><p class="title"><b>Table&#160;1.12.&#160;Bessel Function Performance</b></p>
  41 <div class="table-contents"><table class="table" summary="Bessel Function Performance">
  42 <colgroup>
  43 <col>
  44 <col>
  45 <col>
  46 </colgroup>
  47 <thead><tr>
  48 <th>
  49                 <p>
  50                   Library
  51                 </p>
  52               </th>
  53 <th>
  54                 <p>
  55                   50 Decimal Digits
  56                 </p>
  57               </th>
  58 <th>
  59                 <p>
  60                   100 Decimal Digits
  61                 </p>
  62               </th>
  63 </tr></thead>
  64 <tbody>
  65 <tr>
  66 <td>
  67                 <p>
  68                   mpfr_float
  69                 </p>
  70               </td>
  71 <td>
  72                 <p>
  73                   1.2 (5.78s)
  74                 </p>
  75               </td>
  76 <td>
  77                 <p>
  78                   1.2 (9.56s)
  79                 </p>
  80               </td>
  81 </tr>
  82 <tr>
  83 <td>
  84                 <p>
  85                   static_mpfr_float
  86                 </p>
  87               </td>
  88 <td>
  89                 <p>
  90                   1.1 (5.47s)
  91                 </p>
  92               </td>
  93 <td>
  94                 <p>
  95                   1.1 (9.09s)
  96                 </p>
  97               </td>
  98 </tr>
  99 <tr>
 100 <td>
 101                 <p>
 102                   mpf_float
 103                 </p>
 104               </td>
 105 <td>
 106                 <p>
 107                   <span class="bold"><strong>1.0</strong></span> (4.82s)
 108                 </p>
 109               </td>
 110 <td>
 111                 <p>
 112                   <span class="bold"><strong>1.0</strong></span>(8.07s)
 113                 </p>
 114               </td>
 115 </tr>
 116 <tr>
 117 <td>
 118                 <p>
 119                   cpp_dec_float
 120                 </p>
 121               </td>
 122 <td>
 123                 <p>
 124                   1.8 (8.54s)
 125                 </p>
 126               </td>
 127 <td>
 128                 <p>
 129                   2.6 (20.66s)
 130                 </p>
 131               </td>
 132 </tr>
 133 <tr>
 134 <td>
 135                 <p>
 136                   <a href="http://math.berkeley.edu/~wilken/code/gmpfrxx/" target="_top">mpfr_class</a>
 137                 </p>
 138               </td>
 139 <td>
 140                 <p>
 141                   1.3 (6.28s)
 142                 </p>
 143               </td>
 144 <td>
 145                 <p>
 146                   1.2(10.06s)
 147                 </p>
 148               </td>
 149 </tr>
 150 <tr>
 151 <td>
 152                 <p>
 153                   <a href="http://www.holoborodko.com/pavel/mpfr/" target="_top">mpreal</a>
 154                 </p>
 155               </td>
 156 <td>
 157                 <p>
 158                   2.0 (9.54s)
 159                 </p>
 160               </td>
 161 <td>
 162                 <p>
 163                   1.7 (14.08s)
 164                 </p>
 165               </td>
 166 </tr>
 167 </tbody>
 168 </table></div>
 169 </div>
 170 <br class="table-break"><div class="table">
 171 <a name="boost_multiprecision.perf.realworld.non_central_t_distribution_perfo"></a><p class="title"><b>Table&#160;1.13.&#160;Non-Central T Distribution Performance</b></p>
 172 <div class="table-contents"><table class="table" summary="Non-Central T Distribution Performance">
 173 <colgroup>
 174 <col>
 175 <col>
 176 </colgroup>
 177 <thead><tr>
 178 <th>
 179                 <p>
 180                   Library
 181                 </p>
 182               </th>
 183 <th>
 184                 <p>
 185                   50 Decimal Digits
 186                 </p>
 187               </th>
 188 </tr></thead>
 189 <tbody>
 190 <tr>
 191 <td>
 192                 <p>
 193                   mpfr_float
 194                 </p>
 195               </td>
 196 <td>
 197                 <p>
 198                   1.3 (263.27s)
 199                 </p>
 200               </td>
 201 </tr>
 202 <tr>
 203 <td>
 204                 <p>
 205                   static_mpfr_float
 206                 </p>
 207               </td>
 208 <td>
 209                 <p>
 210                   1.2 (232.88s)
 211                 </p>
 212               </td>
 213 </tr>
 214 <tr>
 215 <td>
 216                 <p>
 217                   mpf_float
 218                 </p>
 219               </td>
 220 <td>
 221                 <p>
 222                   <span class="bold"><strong>1.0</strong></span> (195.73s)
 223                 </p>
 224               </td>
 225 </tr>
 226 <tr>
 227 <td>
 228                 <p>
 229                   cpp_dec_float
 230                 </p>
 231               </td>
 232 <td>
 233                 <p>
 234                   1.9 (366.38s)
 235                 </p>
 236               </td>
 237 </tr>
 238 <tr>
 239 <td>
 240                 <p>
 241                   <a href="http://math.berkeley.edu/~wilken/code/gmpfrxx/" target="_top">mpfr_class</a>
 242                 </p>
 243               </td>
 244 <td>
 245                 <p>
 246                   1.5 (286.94s)
 247                 </p>
 248               </td>
 249 </tr>
 250 <tr>
 251 <td>
 252                 <p>
 253                   <a href="http://www.holoborodko.com/pavel/mpfr/" target="_top">mpreal</a>
 254                 </p>
 255               </td>
 256 <td>
 257                 <p>
 258                   2.0 (388.70s)
 259                 </p>
 260               </td>
 261 </tr>
 262 </tbody>
 263 </table></div>
 264 </div>
 265 <br class="table-break"><p>
 266         Test code was compiled with Microsoft Visual Studio 2010 with all optimisations
 267         turned on (/Ox), and used MPIR-2.3.0 and <a href="http://www.mpfr.org" target="_top">MPFR</a>-3.0.0.
 268         The tests were run on 32-bit Windows Vista machine.
 269       </p>
 270 </div>
 271 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 272 <td align="left"></td>
 273 <td align="right"><div class="copyright-footer">Copyright &#169; 2002-2013 John Maddock and Christopher Kormanyos<p>
 274         Distributed under the Boost Software License, Version 1.0. (See accompanying
 275         file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
 276       </p>
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