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- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="boost_multiprecision.perf.float_performance"></a><a class="link" href="float_performance.html" title="Float Algorithm Performance">Float Algorithm
- Performance</a>
- </h3></div></div></div>
- <p>
- Note that these tests are carefully designed to test performance of the underlying
- algorithms and not memory allocation or variable copying. As usual, performance
- results should be taken with a healthy dose of scepticism, and real-world
- performance may vary widely depending upon the specifics of the program.
- In each table relative times are given first, with the best performer given
- a score of 1. Total actual times are given in brackets, measured in seconds
- for 500000 operations.
- </p>
- <div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator"></a><p class="title"><b>Table 1.14. Operator +</b></p>
- <div class="table-contents"><table class="table" summary="Operator +">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0575156s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0740086s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.219073s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 2.45065 (0.14095s)
- </p>
- </td>
- <td>
- <p>
- 2.01398 (0.149052s)
- </p>
- </td>
- <td>
- <p>
- 1.09608 (0.240122s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 2.6001 (0.149546s)
- </p>
- </td>
- <td>
- <p>
- 2.12079 (0.156957s)
- </p>
- </td>
- <td>
- <p>
- 1.09078 (0.23896s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_int"></a><p class="title"><b>Table 1.15. Operator +(int)</b></p>
- <div class="table-contents"><table class="table" summary="Operator +(int)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- 1.46115 (0.0855392s)
- </p>
- </td>
- <td>
- <p>
- 2.60353 (0.114398s)
- </p>
- </td>
- <td>
- <p>
- 3.62562 (0.264905s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0585424s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0439398s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0730648s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 2.40441 (0.14076s)
- </p>
- </td>
- <td>
- <p>
- 3.2877 (0.144461s)
- </p>
- </td>
- <td>
- <p>
- 2.40379 (0.175632s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_unsigned_long_long"></a><p class="title"><b>Table 1.16. Operator +(unsigned long long)</b></p>
- <div class="table-contents"><table class="table" summary="Operator +(unsigned long long)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.118146s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.144714s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.315639s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 4.5555 (0.538213s)
- </p>
- </td>
- <td>
- <p>
- 3.83096 (0.554395s)
- </p>
- </td>
- <td>
- <p>
- 1.95079 (0.615745s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 5.74477 (0.678719s)
- </p>
- </td>
- <td>
- <p>
- 4.85295 (0.702291s)
- </p>
- </td>
- <td>
- <p>
- 2.70354 (0.853342s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_unsigned_long_long0"></a><p class="title"><b>Table 1.17. Operator +=(unsigned long long)</b></p>
- <div class="table-contents"><table class="table" summary="Operator +=(unsigned long long)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.101188s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.122394s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.251975s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 5.199 (0.526079s)
- </p>
- </td>
- <td>
- <p>
- 4.39327 (0.537712s)
- </p>
- </td>
- <td>
- <p>
- 2.42151 (0.610159s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 6.08318 (0.615547s)
- </p>
- </td>
- <td>
- <p>
- 5.18525 (0.634645s)
- </p>
- </td>
- <td>
- <p>
- 3.1022 (0.781677s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator0"></a><p class="title"><b>Table 1.18. Operator -</b></p>
- <div class="table-contents"><table class="table" summary="Operator -">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0895163s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.129248s)
- </p>
- </td>
- <td>
- <p>
- 1.5088 (0.374512s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 1.72566 (0.154474s)
- </p>
- </td>
- <td>
- <p>
- 1.22567 (0.158415s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.248219s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 1.83764 (0.164499s)
- </p>
- </td>
- <td>
- <p>
- 1.34284 (0.173559s)
- </p>
- </td>
- <td>
- <p>
- 1.00226 (0.248781s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_int0"></a><p class="title"><b>Table 1.19. Operator -(int)</b></p>
- <div class="table-contents"><table class="table" summary="Operator -(int)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.105285s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.142741s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.278718s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 2.34437 (0.246828s)
- </p>
- </td>
- <td>
- <p>
- 1.28814 (0.183871s)
- </p>
- </td>
- <td>
- <p>
- 1.00731 (0.280754s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 2.8032 (0.295136s)
- </p>
- </td>
- <td>
- <p>
- 2.09178 (0.298582s)
- </p>
- </td>
- <td>
- <p>
- 1.25213 (0.34899s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_unsigned_long_long1"></a><p class="title"><b>Table 1.20. Operator -(unsigned long long)</b></p>
- <div class="table-contents"><table class="table" summary="Operator -(unsigned long long)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.13719s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.184428s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.344212s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 4.0804 (0.559791s)
- </p>
- </td>
- <td>
- <p>
- 3.06776 (0.565781s)
- </p>
- </td>
- <td>
- <p>
- 2.07736 (0.715053s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 5.10114 (0.699828s)
- </p>
- </td>
- <td>
- <p>
- 3.88684 (0.716843s)
- </p>
- </td>
- <td>
- <p>
- 2.50074 (0.860784s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_unsigned_long_long2"></a><p class="title"><b>Table 1.21. Operator -=(unsigned long long)</b></p>
- <div class="table-contents"><table class="table" summary="Operator -=(unsigned long long)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.100984s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.123148s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.246181s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 5.68353 (0.573944s)
- </p>
- </td>
- <td>
- <p>
- 4.68636 (0.577116s)
- </p>
- </td>
- <td>
- <p>
- 2.6958 (0.663655s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 6.19738 (0.625834s)
- </p>
- </td>
- <td>
- <p>
- 5.18544 (0.638577s)
- </p>
- </td>
- <td>
- <p>
- 3.18738 (0.784673s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator1"></a><p class="title"><b>Table 1.22. Operator *</b></p>
- <div class="table-contents"><table class="table" summary="Operator *">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- 1.03667 (0.284251s)
- </p>
- </td>
- <td>
- <p>
- 1.30576 (0.536527s)
- </p>
- </td>
- <td>
- <p>
- 1.44686 (4.81057s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.274196s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.410891s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (3.32484s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 1.24537 (0.341477s)
- </p>
- </td>
- <td>
- <p>
- 1.15785 (0.475749s)
- </p>
- </td>
- <td>
- <p>
- 1.1796 (3.92199s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_int1"></a><p class="title"><b>Table 1.23. Operator *(int)</b></p>
- <div class="table-contents"><table class="table" summary="Operator *(int)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- 3.97453 (0.240262s)
- </p>
- </td>
- <td>
- <p>
- 9.91222 (0.463473s)
- </p>
- </td>
- <td>
- <p>
- 50.7926 (4.36527s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0604505s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0467577s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0859431s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 2.56974 (0.155342s)
- </p>
- </td>
- <td>
- <p>
- 3.56312 (0.166603s)
- </p>
- </td>
- <td>
- <p>
- 3.22964 (0.277565s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_unsigned_long_long3"></a><p class="title"><b>Table 1.24. Operator *(unsigned long long)</b></p>
- <div class="table-contents"><table class="table" summary="Operator *(unsigned long long)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.331877s)
- </p>
- </td>
- <td>
- <p>
- 1.01058 (0.586122s)
- </p>
- </td>
- <td>
- <p>
- 6.688 (4.7931s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 1.72433 (0.572266s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.579987s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.716672s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 2.5553 (0.848047s)
- </p>
- </td>
- <td>
- <p>
- 1.74987 (1.0149s)
- </p>
- </td>
- <td>
- <p>
- 1.80403 (1.2929s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_unsigned_long_long4"></a><p class="title"><b>Table 1.25. Operator *=(unsigned long long)</b></p>
- <div class="table-contents"><table class="table" summary="Operator *=(unsigned long long)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.321397s)
- </p>
- </td>
- <td>
- <p>
- 1.00772 (0.574887s)
- </p>
- </td>
- <td>
- <p>
- 6.65946 (4.7468s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 1.77419 (0.570218s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.570482s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.712791s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 2.62172 (0.842611s)
- </p>
- </td>
- <td>
- <p>
- 1.77691 (1.01369s)
- </p>
- </td>
- <td>
- <p>
- 1.77511 (1.26528s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator2"></a><p class="title"><b>Table 1.26. Operator /</b></p>
- <div class="table-contents"><table class="table" summary="Operator /">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- 2.96096 (4.00777s)
- </p>
- </td>
- <td>
- <p>
- 4.53244 (7.86435s)
- </p>
- </td>
- <td>
- <p>
- 6.11936 (51.5509s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (1.35354s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (1.73512s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (8.42422s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 1.30002 (1.75963s)
- </p>
- </td>
- <td>
- <p>
- 1.39045 (2.41261s)
- </p>
- </td>
- <td>
- <p>
- 1.66762 (14.0484s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_int2"></a><p class="title"><b>Table 1.27. Operator /(int)</b></p>
- <div class="table-contents"><table class="table" summary="Operator /(int)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- 8.60726 (1.8181s)
- </p>
- </td>
- <td>
- <p>
- 15.4122 (3.67479s)
- </p>
- </td>
- <td>
- <p>
- 34.5119 (24.729s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 1.24394 (0.262756s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.238433s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.716536s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.211229s)
- </p>
- </td>
- <td>
- <p>
- 1.12178 (0.26747s)
- </p>
- </td>
- <td>
- <p>
- 1.02237 (0.732562s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_unsigned_long_long5"></a><p class="title"><b>Table 1.28. Operator /(unsigned long long)</b></p>
- <div class="table-contents"><table class="table" summary="Operator /(unsigned long long)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- 2.10976 (1.97569s)
- </p>
- </td>
- <td>
- <p>
- 3.73601 (3.9133s)
- </p>
- </td>
- <td>
- <p>
- 11.3085 (25.4533s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.936452s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (1.04746s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (2.25081s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 1.3423 (1.257s)
- </p>
- </td>
- <td>
- <p>
- 1.51575 (1.58768s)
- </p>
- </td>
- <td>
- <p>
- 3.31513 (7.46175s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_unsigned_long_long6"></a><p class="title"><b>Table 1.29. Operator /=(unsigned long long)</b></p>
- <div class="table-contents"><table class="table" summary="Operator /=(unsigned long long)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- 2.17401 (1.96883s)
- </p>
- </td>
- <td>
- <p>
- 3.79591 (3.8965s)
- </p>
- </td>
- <td>
- <p>
- 11.2328 (25.2606s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.905621s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (1.0265s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (2.24882s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 1.37953 (1.24933s)
- </p>
- </td>
- <td>
- <p>
- 1.53073 (1.57129s)
- </p>
- </td>
- <td>
- <p>
- 3.30546 (7.43339s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_construct"></a><p class="title"><b>Table 1.30. Operator construct</b></p>
- <div class="table-contents"><table class="table" summary="Operator construct">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.00929804s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0268321s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0310685s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 30.8781 (0.287106s)
- </p>
- </td>
- <td>
- <p>
- 7.59969 (0.203916s)
- </p>
- </td>
- <td>
- <p>
- 6.51873 (0.202527s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 23.5296 (0.218779s)
- </p>
- </td>
- <td>
- <p>
- 8.11058 (0.217624s)
- </p>
- </td>
- <td>
- <p>
- 7.16325 (0.222552s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_construct_unsigned"></a><p class="title"><b>Table 1.31. Operator construct(unsigned)</b></p>
- <div class="table-contents"><table class="table" summary="Operator construct(unsigned)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0603971s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0735485s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.116464s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 3.91573 (0.236498s)
- </p>
- </td>
- <td>
- <p>
- 2.88171 (0.211945s)
- </p>
- </td>
- <td>
- <p>
- 1.81075 (0.210887s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 4.90052 (0.295977s)
- </p>
- </td>
- <td>
- <p>
- 4.01118 (0.295017s)
- </p>
- </td>
- <td>
- <p>
- 2.62005 (0.305141s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_construct_unsigned_long"></a><p class="title"><b>Table 1.32. Operator construct(unsigned long long)</b></p>
- <div class="table-contents"><table class="table" summary="Operator construct(unsigned long long)">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0610288s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0759005s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.118511s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- 8.26247 (0.504249s)
- </p>
- </td>
- <td>
- <p>
- 6.69042 (0.507806s)
- </p>
- </td>
- <td>
- <p>
- 4.32819 (0.51294s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 10.1593 (0.620013s)
- </p>
- </td>
- <td>
- <p>
- 8.45884 (0.64203s)
- </p>
- </td>
- <td>
- <p>
- 5.51472 (0.653557s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><div class="table">
- <a name="boost_multiprecision.perf.float_performance.operator_str"></a><p class="title"><b>Table 1.33. Operator str</b></p>
- <div class="table-contents"><table class="table" summary="Operator str">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- Backend
- </p>
- </th>
- <th>
- <p>
- 50 Bits
- </p>
- </th>
- <th>
- <p>
- 100 Bits
- </p>
- </th>
- <th>
- <p>
- 500 Bits
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- cpp_dec_float
- </p>
- </td>
- <td>
- <p>
- 2.95848 (0.0223061s)
- </p>
- </td>
- <td>
- <p>
- 3.33461 (0.033471s)
- </p>
- </td>
- <td>
- <p>
- 3.0159 (0.132732s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- gmp_float
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.00753971s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0100374s)
- </p>
- </td>
- <td>
- <p>
- <span class="bold"><strong>1</strong></span> (0.0440106s)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- mpfr_float
- </p>
- </td>
- <td>
- <p>
- 1.25424 (0.00945658s)
- </p>
- </td>
- <td>
- <p>
- 1.24943 (0.012541s)
- </p>
- </td>
- <td>
- <p>
- 1.09428 (0.0481601s)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- </div>
- <br class="table-break"><p>
- Test code was compiled with Microsoft Visual Studio 2010 with all optimisations
- turned on (/Ox), and used MPIR-2.3.0 and <a href="http://www.mpfr.org" target="_top">MPFR</a>-3.0.0.
- The tests were run on 32-bit Windows Vista machine.
- </p>
- </div>
- <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
- <td align="left"></td>
- <td align="right"><div class="copyright-footer">Copyright © 2002-2019 John Maddock
- and Christopher Kormanyos<p>
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- 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>)
- </p>
- </div></td>
- </tr></table>
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