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[Help-gsl] Re: 64 bit performance


From: Rodney Sparapani
Subject: [Help-gsl] Re: 64 bit performance
Date: Fri, 14 May 2010 09:32:30 -0500
User-agent: Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:1.9.1.5) Gecko/20091202 Thunderbird/3.0

On 05/13/10 06:25 PM, Gideon Simpson wrote:
What sort of performance boost, if any, should be expected from 64 bit complied 
gsl code?  I've found a modest, 5-10% speedup in some experiments.

-gideon

Hi Gideon:

I suppose that it depends on what you are trying to do.
I suspect that some PRNGs will approx. double in
performance since the 64-bit math can now be performed
natively.


--
Rodney Sparapani       Center for Patient Care and Outcomes Research
Sr. Biostatistician               http://www.mcw.edu/pcor
4 wheels good, 2 wheels better!   Medical College of Wisconsin (MCW)
WWLD?:  What Would Lombardi Do?   Milwaukee, WI, USA



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