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Re: [Help-gsl] gsl_sf_beta efficiency question
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From: |
Brian Gough |
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Subject: |
Re: [Help-gsl] gsl_sf_beta efficiency question |
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Date: |
Mon, 22 Jan 2007 14:13:26 +0000 |
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User-agent: |
Wanderlust/2.14.0 (Africa) Emacs/21.3 Mule/5.0 (SAKAKI) |
At Fri, 19 Jan 2007 18:57:34 +0100,
Helfer Thomas wrote:
> I measured the CPU time to compute each solution using the rdtsc
> assembly function (my processor is an Intel P4).
> The results where quite surprising: using the Gamma function
> (gsl_sf_gamma) to compute the Beta function seems to be 2x more
> efficient than using directly the Beta function (gsl_sf_beta).
Hello,
The source is in specfunc/beta.c if you want to see the
implementation.
--
Brian Gough
(GSL Maintainer)
Network Theory Ltd,
Publishing the GSL Manual - http://www.network-theory.co.uk/gsl/manual/