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<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Hi David and/or Jeff,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">I am now putting some constants followed by other constants defined by equations in the head of a *.dck file, but find it runs painfully slow.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Is there a way to ensure these are assessed once at the beginning of a simulation and are not assessed again?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:windowtext">Eric Peterson, PhD, PE, RPEQ, M-ASHRAE TC4.2 Climatic Data<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:windowtext">Research Fellow in Geothermal Systems Modelling<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:windowtext"><a href="http://www.geotech-project.eu/?portfolio=university-of-leeds">http://www.geotech-project.eu/?portfolio=university-of-leeds</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:windowtext">School of Civil Engineering, University of Leeds<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:windowtext">Leeds, West Yorkshire LS2 9JT United Kingdom<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:windowtext">Telephone +44 (-0) 11334 31957<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<pre><o:p> </o:p></pre>
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