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<p>Michel,</p>
<p> I am afraid I do not know what the cause of that error is
although I have run into it myself. I always assumed it had to do
with a simulation being launched (automatically by GenOpt) when
some other TRNSYS (or GenOpt) process had not yet completed and
that the reason it runs after clicking the message away is that by
that point the process has completed. I have not run into this
behavior lately (in the past few years) so it may be that a more
recent version of TRNOpt/GenOpt is the answer.</p>
<p>kind regards,</p>
<p> David</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 11/14/2018 03:56, Michel Tamarzians
via TRNSYS-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAPCNZs7UTXgrFWOAdtTFBTXJ23EUGWz2qC0EYC6rzrZjfBSdRg@mail.gmail.com">
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<div>Dear all, <br>
</div>
<div><br>
</div>
<div>Once again I need some help with TRNSYS/TRNOPT. <br>
</div>
<div>I am trying to do an optimization with the "hybrid
for continuous and discrete variables (VonNeumann)"
algorithm which contains the particle swarm optimization
and the hooke-jeeves. However, when doing the
optimization I get an I/O error 32 (see attached
screenshots) and the following:</div>
<div><br>
</div>
<div><b><u>Simulation 21: Caught
'genopt.lang.OptimizerException' with message:
File:
'C:\Trnsys17\Optimization\GenOpt\Simulation\tmp-genopt-run-21\GenoptInputFile.LST'
does not exist after simulation call.<br>
<br>
Simulation working directory :
'C:\Trnsys17\Optimization\GenOpt\Simulation\tmp-genopt-run-21'<br>
Command string :
'C:\Trnsys17\Exe\TRNExe.exe
"C:\Trnsys17\Optimization\GenOpt\Simulation\tmp-genopt-run-21\GenoptInputFile.DCK"
/h /WAIT '<br>
Try to evaluate simulation a second time.</u></b><br>
<br>
</div>
<div>When I close the error the optimization continues
again and after doing this two or three times it
eventually finds the minimum of the cost function. Does
anyone know what this error could be and how to solve
it? Otherwise I can't be sure how correct the results
are ofcourse. Or could be have to do with the random
particles chosen by the algorithm and some of them
falling outside the boundaries?<br>
</div>
<div><br>
</div>
<div>Any help is appreciated. Thanks.</div>
<div><br>
</div>
<div>Kind regards, <br>
</div>
<div>Michel<br>
</div>
</div>
</div>
</div>
</div>
<br>
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI 53703 USA
P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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