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RE: [EnergyPlus_Support] GenOpt and the group simulation
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
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