[Radiance-general] [Radiance-openstudio] Updated Radiance Installers Available

[J. Alstan Jakubiec]

Hi German,

While I can't speak to #1, with regards to #2 the epw2wea program comes  
along with DAYSIM, so you do need to download the entire package from  
http://daysim.ning.com/page/download. If you are using Linux, the windows  
download includes source which can be compiled on Linux.

Best,
Alstan

On Fri, 22 Feb 2013 09:57:10 -0500, Germán Molina Larrain <gmolina1 at uc.cl>  
wrote:

> Sorry for taking this topic back alive but I have two questions.
>
> 1.- (I do not know much about programming) Why are dctimestepCPU(GPU) no
> longer needed? is this new version as fast as GPU calculation? was there  
> ay
> disadvantage?
>
> 2.- It seems that I can not download the epw2wea program. Do I have to
> download the entire DAYSIM package?
>
> THANKS
>
> German
>
> 2013/2/19 Andrew McNeil <amcneil at lbl.gov>
>
>> Just to clarify, you do need the newest head version of dctimestep to  
>> use
>> the skymatrix generated by gendaymtx in a three-phase calc.
>>
>> it goes like this:
>> gendaylit Chicago.wea > Chicago.smx
>> dctimestep -n 8760 sensors.vmx fenestration.xml exterior.dmx  
>> Chicago.smx >
>> illuminance.txt
>>
>> (where -n is the number of time steps in your sky matrix file)
>>
>> You can use epw2wea from daysim to convert epw to wea format (
>> http://daysim.ning.com/subprogram/epw2wea).
>>
>> Andy
>>
>>
>> On Tue, Feb 19, 2013 at 12:16 PM, Guglielmetti, Robert <
>> Robert.Guglielmetti at nrel.gov> wrote:
>>
>>>  Hi German,
>>>
>>> Yes, gendaymtx is in the HEAD, the installers in the NREL site are  
>>> based
>>> on the HEAD as of Thursday of last week, I believe. And no, the GPU
>>> dctimestep is not needed for this to work (nor is that version of
>>> dctimestep in HEAD). Nope, gendaymtx works with all the standard  
>>> Radiance
>>> tools. You simply need a weather file formatted the way it wants,  
>>> which is
>>> the same format as a DAYSIM weather file. Andy McNeil notes that  
>>> DAYSIM has
>>> a tool to convert the EnergyPlus weather file format (.epw) to the  
>>> DAYSIM
>>> format. OpenStudio will be modified to automatically provide gendaymtx  
>>> with
>>> the epw data in the format it expects. I noticed that gendaymtx also
>>> accepts weather data from STDIN, and that there is an option to feed it
>>> less than a full year (8760) of data. We will leverage this ability in
>>> OpenStudio for sure, as well.
>>>
>>> Exciting times!
>>>
>>> - Rob
>>>
>>>
>>>
>>>
>>> Rob Guglielmetti
>>> Commercial Buildings Research Group
>>> National Renewable Energy Laboratory (NREL)
>>> 15013 Denver West Parkway MS: RSF202
>>> Golden, CO 80401
>>> 303.275.4319
>>> robert.guglielmetti at nrel.gov
>>>
>>> -----Original Message-----
>>> *From: *Germán Molina Larrain [gmolina1 at uc.cl]
>>> *Sent: *Tuesday, February 19, 2013 12:25 PM Mountain Standard Time
>>> *To: *Radiance general discussion
>>> *Cc: *bldg-sim; radiance-openstudio
>>> *Subject: *Re: [Radiance-general] Updated Radiance Installers Available
>>>
>>> Good to know!
>>>
>>> Is gendaymtx available in the HEAD version of Radiance? Is the GPU
>>> version of dctimestep needed for using that?
>>>
>>> THANKS VERY MUCH
>>>
>>> German
>>>
>>> 2013/2/19 Guglielmetti, Robert <Robert.Guglielmetti at nrel.gov>
>>>
>>>> Hi folks,
>>>>
>>>> Just a quick note to let you all know that the Radiance installers  
>>>> have
>>>> been updated, and are available for download at the NREL OpenStudio  
>>>> site.
>>>> These packages include the brand new 'gendaymtx' utility that greatly
>>>> speeds up the annual calculation when using the daylight coefficient  
>>>> tools
>>>> in Radiance.
>>>>
>>>> We hope to add gendaymtx into the OpenStudio tool chain and workflow  
>>>> in
>>>> the coming weeks, but in the meantime, I'm sure Greg would appreciate  
>>>> any
>>>> feedback from users willing to try it out on their own, especially  
>>>> those
>>>> Windows users out there. There's a man page explaining its use, and  
>>>> it's
>>>> pretty straightforward.
>>>>
>>>> Grab yours here:
>>>>
>>>>
>>>> http://openstudio.nrel.gov/getting-started-developer/getting-started-radiance
>>>>
>>>> Ok, bye.
>>>>
>>>> -Rob Gee
>>>>
>>>> Rob Guglielmetti
>>>> Commercial Buildings Research Group
>>>> National Renewable Energy Laboratory (NREL)
>>>> 15013 Denver West Parkway MS: RSF202
>>>> Golden, CO 80401
>>>> 303.275.4319
>>>> robert.guglielmetti at nrel.gov
>>>> _______________________________________________
>>>> Radiance-general mailing list
>>>> Radiance-general at radiance-online.org
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