[R] New version of benchmark comparing R with other software

[Fan]

Merci, Philippe.

Just a complement regarding Matlab 6.5 (R13).

R 1.9.0 is globally faster than Matlab 6.5 (tested on an AthlonXP):
                                   Matlab       R
Total time for all 15 tests (sec)  14.29   10.81
Overall mean (sec)                  0.86    0.45

Matlab 6.5 has optimized the loops performance (sth called "Just In Time"),
with spectacular results, codes with loops could be faster then vectorized
codes. Here's the result for the "loops" test:
                                               Matlab     R
Creation of a 220x220 Toeplitz matrix (loops)   0.01  0.50

Bravo to the R dev team, nice job !
Cheers
--
Fan

Philippe Grosjean wrote:
> Hello,
> 
> Thanks to Douglas Bates, there is now a new benchmark suite (version 2.3)
> which is compatible with R 1.9.0 and the recent Matrix library (0.8-1 or
> above). You find it at http://www.sciviews.org/other/benchmark.htm. It
> compares R 1.9.0 under Windows with:
> S-PLUS 6.5, Matlab 6.0, O-Matrix 5.6, Octave 2.1.42, Scilab 2.7 and Ox 3.30.
> 
> In short, R in its version 1.9.0 and with the new Matrix library, is now one
> of the fastest matrix calculation package among those tested on the computer
> and system used (P IV, 1 Gb RAM and Windows XP pro).
> 
> Keeping its limitations in mind (only a few functions tested, and relatively
> artificial situations that may or may not compare with real-world cases),
> this benchmark suite could be useful for deciding which software to chose
> for computing intensive matrix calculations, and also to compare the same
> software (R) on different platforms, with one or several processors, and/or
> with various optimized BLAS libraries.
> 
> Best,
> 
> Philippe Grosjean
> 
> .......................................................<°}))><....
>  ) ) ) ) )
> ( ( ( ( (   Prof. Philippe Grosjean
> \  ___   )
>  \/ECO\ (   Numerical Ecology of Aquatic Systems
>  /\___/  )  Mons-Hainaut University, Pentagone
> / ___  /(   8, Av. du Champ de Mars, 7000 Mons, Belgium
>  /NUM\/  )
>  \___/\ (   phone: + 32.65.37.34.97, fax: + 32.65.37.33.12
>        \ )  email: Philippe.Grosjean at umh.ac.be
>  ) ) ) ) )  SciViews project coordinator (http://www.sciviews.org)
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