<br><font size=2 face="sans-serif">Mauro,</font>
<br>
<br><font size=2 face="sans-serif">There is preprocessing with Cbc. It
is different from OSL's and each has some advantages but I would hope that
Cbc would be competitive. Can you send me the models to play with?</font>
<br>
<br><font size=2 face="sans-serif">Thanks</font>
<br>
<br><font size=2 face="sans-serif">John</font>
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<br>
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<td width=40%><font size=1 face="sans-serif"><b>Mauro Scarioni <75824002@it.ibm.com></b>
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<br><font size=1 face="sans-serif">Sent by: coin-discuss-bounces@list.coin-or.org</font>
<p><font size=1 face="sans-serif">09/21/2006 08:18 AM</font>
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<div align=center><font size=1 face="sans-serif">Please respond to<br>
Discussions about open source software for Operations Research
<coin-discuss@list.coin-or.org></font></div></table>
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<div align=right><font size=1 face="sans-serif">To</font></div>
<td><font size=1 face="sans-serif">coin-discuss@list.coin-or.org</font>
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<div align=right><font size=1 face="sans-serif">cc</font></div>
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<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">[Coin-discuss] Very hard MIP Models</font></table>
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<br><tt><font size=2><br>
Hi all<br>
<br>
i've a consolidated set of MIP models running under OSL and solving well.<br>
<br>
In particular a class of model are solved by OSL MIP presolver in very<br>
small time.<br>
Now i need to solve these models with Coin, but i'm not able to find<br>
solution in reasonable time.<br>
<br>
Has anyone got a Coin configuration that simulate the OSL MIP Presolver
?<br>
<br>
Thank in advance<br>
<br>
Mauro<br>
<br>
<br>
<br>
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