Re: Accuracy of Mathematical Functions

       Dear Alexander,

since you ask, you will find some graphs in the last slides of my talk
about the correctly-rounded power function (x^y) at Arith23:

https://members.loria.fr/PZimmermann/talks/pow-arith23.pdf

Once CORE-MATH provides all binary64 functions, we plan to redo these graphs
with all existing libraries, including freebsd of course.

Best regards,
Paul

> Date: Tue, 26 Sep 2023 15:26:16 +0200
> From: Alexander Leidinger <Alexander@Leidinger.net>
> Cc: freebsd-hackers@freebsd.org
> Organization: No organization, this is a private message.
> 
> 
> [1:text/plain Hide]
> 
> Am 2023-09-25 15:50, schrieb Paul Zimmermann:
> 
> > We have updated our comparison:
> > 
> > https://members.loria.fr/PZimmermann/papers/accuracy.pdf
> > 
> > This new update includes for the first time the FreeBSD math library,
> > whose accuracy is quite good, except:
> 
> I wonder how those functions/libs you tested compare in terms of 
> speed...
> It would allow to provide a hint to the question
>    "Which lib is the fastest and fulfills the needs in terms of accuracy 
> for the intended use-case?"
> 
> I agree that the best way to do this requires to run all libs on the 
> same hardware and OS, which is not feasible in your approach. What may 
> be feasible is to compare the relative performance of those subsets, 
> which you run on the same hardware.
> 
> Bye,
> Alexander.
> 
> -- 
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