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<p>Jan-Willem,<br>
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I am a bit unavailable at present but can try and improve things for you by early next week. If you send me some pseudo code and details of how desperate you are to save memory, I can think what would be useful for you and others.<br>
<br>
John Forrest<br>
<br>
<img width="16" height="16" src="cid:1__=0ABBFF02DFC3A5FB8f9e8a93df938@us.ibm.com" border="0" alt="Inactive hide details for Goossens Jan-Willem ---04/06/2009 09:48:03 AM---Hi,"><font color="#424282">Goossens Jan-Willem ---04/06/2009 09:48:03 AM---Hi,</font><br>
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<font size="2" color="#5F5F5F">From:</font></td><td width="100%"><img width="1" height="1" src="cid:2__=0ABBFF02DFC3A5FB8f9e8a93df938@us.ibm.com" border="0" alt=""><br>
<font size="2">Goossens Jan-Willem <Jan-Willem.Goossens@nc3a.nato.int></font></td></tr>
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<font size="2" color="#5F5F5F">To:</font></td><td width="100%"><img width="1" height="1" src="cid:2__=0ABBFF02DFC3A5FB8f9e8a93df938@us.ibm.com" border="0" alt=""><br>
<font size="2">"cbc@list.coin-or.org" <cbc@list.coin-or.org></font></td></tr>
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<font size="2" color="#5F5F5F">Date:</font></td><td width="100%"><img width="1" height="1" src="cid:2__=0ABBFF02DFC3A5FB8f9e8a93df938@us.ibm.com" border="0" alt=""><br>
<font size="2">04/06/2009 09:48 AM</font></td></tr>
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<font size="2" color="#5F5F5F">Subject:</font></td><td width="100%"><img width="1" height="1" src="cid:2__=0ABBFF02DFC3A5FB8f9e8a93df938@us.ibm.com" border="0" alt=""><br>
<font size="2">[Cbc] More problem with re-solving a model</font></td></tr>
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<font face="Calibri">Hi,</font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">I’m trying to solve a problem with CBC, add a constraint that cuts off the last integer solution, and solve again (it’s a covering problem, and I’m trying to find all covers). </font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">I kept hitting the problem that after the first solve, the model was littered with extra bounds, I guess from the B&B process (right?)</font><br>
<font face="Calibri">Fortunately, I read </font><a href="http://list.coin-or.org/pipermail/cbc/2008-February/000098.html"><u><font color="#0000FF" face="Calibri">http://list.coin-or.org/pipermail/cbc/2008-February/000098.html</font></u></a><br>
<font face="Calibri">“</font><i><font face="Calibri">use saveReferenceSolver() initially and then use resetToReferenceSolver() to reset bounds and everything</font></i><font face="Calibri">” </font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">So is this Reference Solver instance a full copy of the problem? I’m having problems fitting the problem into memory as it is, let alone keeping two around.. </font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">Thanks,</font><br>
<font face="Calibri"> </font><br>
<font face="Calibri">Jan-Willem</font><tt>_______________________________________________<br>
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