[Radiance-general] Re: rtrace

[Jia Hu]

Sorry I just forgot one question.

In the post
http://www.rumblestrip.org/interests/light/rtrace-multiprocessing-option-initial-test-results/
and
the rtrace manual page, both mentioned "-x" and "-n", What is the
relationship between "-x" and "-n"?

Sorry for so many questions.

Thank you.

Jia

On Tue, Jul 13, 2010 at 10:28 PM, Jia Hu <hujia06 at gmail.com> wrote:

> Dear Radiance experts:
>
> I plan to calculate illuminance of an office model by using multiprocessing
> (6 processors). I saw some posts discussing about this
> problems (e.g.
> http://www.rumblestrip.org/interests/light/rtrace-multiprocessing-option-initial-test-results/
> ).
>
> (1) I have some questions about the usage of rtrace. There are two options
> "i", "I" (one lower i and one upper i). I checked the manual page.
> but I am still confused with their difference.
>
> (2) What is the option "-h" (in rtrace) used for? I run several times but
> do not see any header information.
>
> (3) There are interior blinds installed. If I first use mkillum to make the
> window as a secondary light source, and then run rtrace, in this case the
> program runs twice to get the illuminance value. Does this way make running
> faster than directly using rtrace (only once)?  I input the model from
> Revit and thus the window object is connected in the .rad file and
> therefore It is not easy to use mkillum (To use mkillum requires either (1)
> not
> to import window from revit and to generate window in Radiance or (2) cut
> and paste the window .rad to a separate .rad file?)
>
> (4) For mutiprocessing, besides the option "-n",  is there any other
> options I should pay attention to? I use Python script, and should I set
> other
> options related to Python itself?
>
> As always, thank you for your help.
>
> Jia
>
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