Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

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Floating-Point Real World Tests

These tests test the total time taken to execute all of Boost.Math's test cases for these functions. In each case the best performing library gets a relative score of 1, with the total execution time given in brackets. The first three libraries listed are the various floating-point types provided by this library, while for comparison, two popular C++ front-ends to MPFR ( mpfr_class and mpreal) are also shown.

Table 1.12. Bessel Function Performance

Library

50 Decimal Digits

100 Decimal Digits

mpfr_float

1.2 (5.78s)

1.2 (9.56s)

static_mpfr_float

1.1 (5.47s)

1.1 (9.09s)

mpf_float

1.0 (4.82s)

1.0(8.07s)

cpp_dec_float

1.8 (8.54s)

2.6 (20.66s)

mpfr_class

1.3 (6.28s)

1.2(10.06s)

mpreal

2.0 (9.54s)

1.7 (14.08s)


Table 1.13. Non-Central T Distribution Performance

Library

50 Decimal Digits

mpfr_float

1.3 (263.27s)

static_mpfr_float

1.2 (232.88s)

mpf_float

1.0 (195.73s)

cpp_dec_float

1.9 (366.38s)

mpfr_class

1.5 (286.94s)

mpreal

2.0 (388.70s)


Test code was compiled with Microsoft Visual Studio 2010 with all optimisations turned on (/Ox), and used MPIR-2.3.0 and MPFR-3.0.0. The tests were run on 32-bit Windows Vista machine.


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