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[EnergyPlus_Support] Re: GenOpt and the group simulation



Dear,
Sorry, I forgot a question more. If I would optimize the group 
simulation in GenOpt, what would be input file? Maybe *.imf if I 
would use Input Macros? But if I would not use the Input Macros what 
then should be the input file for GenOpt?

Thank you in advance!

Natasa M.Djuic

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Griffith, Brent" 
<brent_griffith@...> wrote:
>
> I am not sure I follow all your questions very well, but here are 
some
> general responses:
> 
>  
> 
> 1.	If you are using GenOpt, then GenOpt would handle and run all
> the parametric simulations and you wouldn't need to use EP-launch 
at
> all.  You would probably want to set up GenOpt to launch a separate
> batch file that will call EpMacro directly to process *imf files 
before
> launching EnergyPlus.  
> 2.	why rerun consecutive daily simulations at all?  If it is for
> run time, note that EnergyPlus has to first do a number of warm up 
days
> to setup the thermal histories in the building fabric.  You are 
better
> off running consecutive days in a single simulation.  If it is for
> reporting, then you could choose Daily frequency on report 
variables and
> get individual values for each day that way.  
> 	The point of using *.imf is build up *.idf files.  So, no, 
you
> wouldn't already have a set of *.idf files.  They are created by
> successive calls to EpMacro to process the *.imf files. 
> 
>  
> 
> Good luck!
> 
>  
> 
> brent
> 
>  
> 
> ________________________________
> 
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of natasamdj
> Sent: Tuesday, October 10, 2006 5:33 AM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] GenOpt and the group simulation
> 
>  
> 
> Dear,
> I would like to ask you some questions about the optimization of 
the 
> group simulations by using GenOpt. 
> 1. Can a series of parametric runs, obtained by using the group 
> simulation feature in EP-Launch, be optimized by a couple of a 
> command and an initial file from GenOpt? In addition, is it 
possible 
> to make only an output file from the series of parametric run by 
> using postprocessing? Can the result from such a common output 
file 
> be used as the objective function in GenOpt?
> 2. This question is about re-running daily simulation. If the 
group 
> of simulations would be for every day in a certain period (from 1 
to 
> 10 January, for example January 1, January 2, etc), should the 
*.idf 
> files be needed for each of these days? Is it possible to make an 
> *.idf file for every day by using Input Macros? I downloaded your 
> example Parametric-5ZoneWarmest.imf. There I found that you have 
> made the simulations for the different buildings orientations. I 
> wonder if you already had these *.idf files for each of the 
> orientations, or *.imf would make them. (Sorry, in the moment I am 
> running some optimizations, and I am not capable to run your 
example 
> now, maybe then I will see well). In my case the parameter will be 
> the run period, I assume. I wonder if it is possible to make an 
> external file for the different days to be the run period. Then I 
> would need the repeating for each day. In such a case can I use a 
> recursion:
> "file1.inp contains ##include file2.inp
> file2.inp contains ##include file1.inp" 
> as you give the explanation for Input Macros at the page 153 in 
> Auxiliary EnergyPlus Programs. Sorry, do I think in good way about 
> this option for Macro Input?
> 
> If this last about re-running is not clear enough I can write that 
> again.
> 
> Thank you in advance!
> 
> Natasa M.Djuric
> 
>  
> 
> 
> 
> [Non-text portions of this message have been removed]
>





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