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Re: [Help-gsl] gsl_sf_beta efficiency question

From: Brian Gough
Subject: Re: [Help-gsl] gsl_sf_beta efficiency question
Date: Mon, 22 Jan 2007 14:13:26 +0000
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).


The source is in specfunc/beta.c if you want to see the

Brian Gough
(GSL Maintainer)

Network Theory Ltd,
Publishing the GSL Manual -

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