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

[Germán Molina Larrain]

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
>>> http://www.radiance-online.org/mailman/listinfo/radiance-general
>>>
>>
>>
>> _______________________________________________
>> Radiance-openstudio mailing list
>> Radiance-openstudio at radiance-online.org
>> http://www.radiance-online.org/mailman/listinfo/radiance-openstudio
>>
>>
>
> _______________________________________________
> Radiance-general mailing list
> Radiance-general at radiance-online.org
> http://www.radiance-online.org/mailman/listinfo/radiance-general
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.radiance-online.org/pipermail/radiance-general/attachments/20130222/fb01566c/attachment-0001.html>