[Radiance-general] rtrace and parallel processes

[Jack de Valpine]

Hi Cramer,

Can you tell us the command line you are using to run your rtrace job?

-Jack

-- 
# Jack de Valpine
# president
#
# visarc incorporated
# http://www.visarc.com
#
# channeling technology for superior design and construction



Cramer Silkworth wrote:
> Hi All,
>
> I've been testing the -n option of rtrace, but I'm not getting speed 
> increases that make sense. My test job takes rtrace ~30 minutes on one 
> core. With four cores I only get down to 24 minutes (and ~25 minutes 
> for 2 and 3 cores). I can see in system monitor that it is using the 
> right number of cores. I'm not expecting exactly 1/4th the run time, 
> but only 20% faster doesn't sound quite right. Any thoughts?
>
> Thanks,
> Cramer
> -- 
> *Cramer Silkworth
> 212 219 2255 | silkworth at transsolar.com <mailto:silkworth at transsolar.com>
> Transsolar Inc. | 134 Spring Street Suite 601 | New York, NY 10012
>
> Transsolar Climate Engineering
> Technical consulting for energy efficiency and environmental quality 
> in buildings.
> New York - Stuttgart - Munich*
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