[TRNSYS-users] GenOpt

[Miroslava Kavgic]

Hi Graham,

many thanks for your reply!!! Will try it!

I also came up with some solution. I separated Qheat and PPD into two files
and used two Types28. The second Type28 which prints PPD, in Parameter
section I set Summary interval to 2. Therefore its output looks like this:

         Time                                             PPD
1        0.4032000000000000E+0004          0.1875886617458913E+0002
Sum   0.4032000000000000E+0004          0.1875886617458913E+0002

Thus for PPD, Delimiter is ''1   0.4032000000000000E+0004'', while for
Qheat it is ''Sum   0.4032000000000000E+0004'' (from the first Type28). In
this way GenOpt wont be confused with Delimiters.

Regards,

Miroslava





On 6 May 2012 17:54, Graham Linn <grahamjlinn at gmail.com> wrote:

> Hi Miroslava,
>
> I struggled with this same problem, hopefully my solution will help you.
>
> GenOpt has an option where you can define 'FirstCharacterAt' in the
> ObjectiveFunctionLocation section of your .ini file. This allows you to
> extract two outputs from one line of text.
>
> Here is an example from my work that might help you: (In my opinion, the
> GenOpt manual does a poor job of explaining how to use 'FirstCharacterAt'!)
>
> My output text file looks like this: (I want to read kWh_total and
> BTU_total from the last line of the file)
>
>
> TIME                                         ,kWh_total
>               ,BTU_total                ,
>   +0.0000000000000000E+00,  +0.0000000000000000E+00,
>  +0.0000000000000000E+00,
>   +8.7600000000000000E+03,  +9.6507009364595826E+04,
>  +3.5498954575250727E+08,
>
>
> In order to read kWh_total and BTU_total into GenOpt as objective
> functions, I define my the ObjectiveFunctionLocation of my .ini file as
> follows:
>
>
>  ObjectiveFunctionLocation {
>         Name1      = "BTU";
>         Delimiter1 = "," ;
> FirstCharacterAt1 = 52;
>  Name2 = "kWh";
> Delimiter2 = ",";
>  FirstCharacterAt2 = 26;
>     }
>
>
>
> GenOpt reads files by starting at the *bottom* of the file. The
> 'FirstCharacterAt' parameter tells GenOpt where to look for the Delimiter
> that you have defined. So, for my first objective function (BTU), I defined
> FirstCharacterAt to be 52, which is one position to the left of the
> delimiter for the BTU data. (i.e., just to the left of the comma in the
> string ',  +3.5498954575250727E+08') I did the same for the kWh output, but
> this time the FirstCharacterAt position is 26, which is just to the left of
> the comma delimiter for the kWh output.
>
> I think it is probably easier to have both outputs in one file. If you
> have two output files, GenOpt will only read the second output file if it
> can't find the Objective Function in the first output file. Having two
> output files doesn't really simplify anything, you still have to figure out
> how to define your Delimiter and ObjectiveFunctionLocation so that two
> values can be read.
>
> I hope that helps! Please reply if something does not make sense.
> -Graham
>
>
>
>
>
>
>
>
>
>
>
> On Sat, May 5, 2012 at 11:04 AM, Miroslava Kavgic <
> miroslava.kavgic at gmail.com> wrote:
>
>> Dear all,
>>
>> I'am using GenOpt with TRNSYS for optimization of  building. My first
>> cost function on which optimization should be performed is Qheat and the
>> second cost function that should serve as restriction function (penalty) is
>> PPD (predicted percent of dissatisfied people), and both functions are
>> calculated by TRNSYS. However I'am having trouble with writing the *.ini
>> file* so both functions could be red by GenOpt. Namely, GenOpt only
>> reads the first one (Qheat) while it ignores the second one, even thoug it
>> exists in the output file after the first one.
>>
>>
>> For example, if Name1=''Qheat''; Delimiter1=''04032000000000000E+0004'';
>> (simulate only winter season),
>> how Name and Delimiter of the second cost function should be defined,
>> that is of the PPD function?
>> More precisely I don't know how to define Delimiter of the second
>> function in order to be red by GenOpt.
>> Should both function be in the same output file or in the separate output
>> files?
>>
>> Thank you very much!!!
>>
>> Kind Regards,
>>
>> Miroslava Kavgic
>>
>> --
>> Miroslava Kavgic Dipling, MSc
>> PhD Candidate
>>
>> Bartlett School of Graduate Studies
>> University College London (UCL)
>> Central House
>> 14 Upper Woburn Place
>> London     WC1H 0NN    UK
>>
>> E-mail:miroslava.kavgic at gmail.com
>>
>> _______________________________________________
>> TRNSYS-users mailing list
>> TRNSYS-users at cae.wisc.edu
>> https://mailman.cae.wisc.edu/listinfo/trnsys-users
>>
>>
>


-- 
Miroslava Kavgic Dipling, MSc
PhD Candidate

Bartlett School of Graduate Studies
University College London (UCL)
Central House
14 Upper Woburn Place
London     WC1H 0NN    UK

E-mail:miroslava.kavgic at gmail.com
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