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      <title>DTI,SETREE</title>
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      <div class="title_refTopic" id="xps10_pagetitle">DTI,SETREE </div>
      <hr noshade="true">
      <h4 class="refClassification">Superelement Tree Definition </h4>
      <p class="para_refTopic">Defines a superelement tree that determines the superelement processing order. </p>
      <div class="title_refCategory">Format: </div>
      <div class="refCategoryContent">
         <table border="1" width="100%" align="center">
            <colgroup span="1">
               <col span="1" width="784*">
               <col span="1" width="984*">
               <col span="1" width="1277*">
               <col span="1" width="975*">
               <col span="1" width="1230*">
               <col span="1" width="979*">
               <col span="1" width="1174*">
               <col span="1" width="966*">
               <col span="1" width="1253*">
               <col span="1" width="561*">
            </colgroup>
            <thead>
               <tr>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">1 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">2 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">3 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">4 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">5 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">6 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">7 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">8 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">9 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">10 </p>
                  </th>
               </tr>
            </thead>
            <tbody>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">DTI </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SETREE </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&ldquo;1&quot; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SEUP1 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SEDOWN1 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SEUP2 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SEDOWN2 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SEUP3 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SEDOWN3 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SEUP4 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SEDOWN4 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SEUP5 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SEDOWN5 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">-etc.- </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
               </tr>
            </tbody>
         </table><br></div>
      <div class="title_refCategory">Example: </div>
      <div class="refCategoryContent">
         <table border="1" width="100%" align="center">
            <colgroup span="1">
               <col span="1" width="9.90*">
               <col span="1" width="12.49*">
               <col span="1" width="9.90*">
               <col span="1" width="9.90*">
               <col span="1" width="9.90*">
               <col span="1" width="9.90*">
               <col span="1" width="9.90*">
               <col span="1" width="9.90*">
               <col span="1" width="9.90*">
               <col span="1" width="8.31*">
            </colgroup>
            <tbody>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">DTI </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SETREE </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">1 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">1 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">14 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">2 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">14 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">3 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">14 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">4 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">14 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">14 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">0 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
               </tr>
            </tbody>
         </table><br></div>
      <div class="title_refCategory">Fields:</div>
      <div class="refCategoryContent">
         <table cellpadding="8" width="100%" align="center">
            <colgroup span="1">
               <col span="1" width="16*">
               <col span="1" width="84*">
            </colgroup>
            <thead>
               <tr>
                  <th align="left" colspan="1" rowspan="1">
                     <p class="para_th"><b class="uiTerm">Field </b></p>
                  </th>
                  <th align="left" colspan="1" rowspan="1">
                     <p class="para_th"><b class="uiTerm">Contents </b></p>
                  </th>
               </tr>
            </thead>
            <tbody>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">SEUPi </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Identification number of the superelement upstream from SEDOWNi.  (Integer&gt;0) </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">SEDOWNi </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Identification number of the superelement into which SEUPi is assembled.  (Integer &ge; 0) </p>
                  </td>
               </tr>
            </tbody>
         </table><br></div>
      <div class="title_refCategory">Remarks: </div>
      <div class="refCategoryContent">
         <ol type="1" start="1">
            <li>
               <p class="para_item">SETREE entries or the DTI,SETREE entry are required for multi-level superelement configurations. </p>
            </li>
            <li>
               <p class="para_item">If an DTI,SETREE entry is provided, then SETREE entries are not required. </p>
            </li>
            <li>
               <p class="para_item">If both SETREE entries and a DTI,SETREE entry exist, then the DTI,SETREE entry will be ignored. </p>
            </li>
            <li>
               <p class="para_item">Superelements not referenced on the SETREE or DTI,SETREE entry will have the residual structure as their downstream superelement. </p>
            </li>
            <li>
               <p class="para_item">If this entry is not present, the superelement tree and the processing order are determined automatically. </p>
            </li>
            <li>
               <p class="para_item">A superelement identification may appear only once in a SEUPi field. </p>
            </li>
            <li>
               <p class="para_item">On restart, if a superelement identification does not appear in a SEUPi field, its matrices will not be assembled, even though they may be present in the database. </p>
            </li>
            <li>
               <p class="para_item">See the <em><a class="links" href="javascript:void(0)" onclick="top.popUpPage('QRG/linkInter_target_not_resolved.html#super:ref86112:-aux,-home','linkInter','menubar=yes,status=yes,resizable=yes,toolbar=yes,scrollbars=yes,location=no,directories=no');return(false);">NX Nastran Superelement User&rsquo;s Guide</a></em> for a description of user-designated trees. 
               </p>
            </li>
            <li>
               <p class="para_item">This entry is stored in the database automatically.  Once stored, the Bulk Data entry may be removed from the input file. </p>
            </li>
            <li>
               <p class="para_item">In the example above, the following superelement tree is defined: </p><a name="ref30141"></a><div class="figure">
                  <p align="center"><img align="bottom" src="graphics/bulkde-fig01.gif"></p>
               </div>
               <div class="title_figure">Figure. Sample Superelement Tree </div>
            </li>
         </ol>
      </div>
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