<br><font size=2 face="sans-serif">Salvatore,</font>
<br>
<br><font size=2 face="sans-serif">The class CoinModel is designed to make
it reasonably fast to add rows one at a time. Try defining a CoinModel,
building your model and then create an OsiSolverInterface object by
loadFromCoinModel.</font>
<br>
<br><font size=2 face="sans-serif">Personally I would use Cbc and OsiClp
rather than OsiCbc as that way you get more flexibility. If I could
remember who asked me to add OsiCbcSolverInterface I would stick pins in
a little wax doll of him or her :-) </font>
<br>
<br><font size=2 face="sans-serif">John Forrest</font>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td width=40%><font size=1 face="sans-serif"><b>"Salvatore Nocella"
<salvatore.nocella@di.univaq.it></b> </font>
<br><font size=1 face="sans-serif">Sent by: coin-discuss-bounces@list.coin-or.org</font>
<p><font size=1 face="sans-serif">10/13/2005 10:26 AM</font>
<table border>
<tr valign=top>
<td bgcolor=white>
<div align=center><font size=1 face="sans-serif">Please respond to<br>
Discussions about open source software for Operations Research
</font></div></table>
<br>
<td width=59%>
<table width=100%>
<tr>
<td>
<div align=right><font size=1 face="sans-serif">To</font></div>
<td valign=top><font size=1 face="sans-serif"><coin-discuss@list.coin-or.org></font>
<tr>
<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
<td valign=top>
<tr>
<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td valign=top><font size=1 face="sans-serif">[Coin-discuss] Quick method
to build an ILP model</font></table>
<br>
<table>
<tr valign=top>
<td>
<td></table>
<br></table>
<br>
<br>
<br><font size=2><tt>Hello,<br>
<br>
i'am writing a simple application to build an ILP model to be following<br>
solved by BranchAndBound. My ILP is introduced iteratively calling the<br>
method addRow() on a OsiCbcSolverInterface object instance. However this<br>
procedure seems to be too much time consuming (mostly depending on the<br>
addRow() computing time). I wonder if there is an alternative method to<br>
introduce an ILP formulation row-by-row quicker than the previous.<br>
<br>
Thanks! bye<br>
<br>
_________________________________________________<br>
Salvatore Nocella<br>
<br>
Ph-D Student in Computer Science<br>
Dipartimento di Informatica : Universita' di L'Aquila : Italy<br>
office phone & fax + 39 0862 433736<br>
web http://www.di.univaq.it/people/SalvatoreNocella/ <br>
laboratorio O.I.L. http://www.oil.di.univaq.it/ <br>
<br>
<br>
<br>
-- <br>
No virus found in this outgoing message.<br>
Checked by AVG Anti-Virus.<br>
Version: 7.0.344 / Virus Database: 267.11.14/131 - Release Date: 12/10/2005<br>
<br>
<br>
_______________________________________________<br>
Coin-discuss mailing list<br>
Coin-discuss@list.coin-or.org<br>
http://list.coin-or.org/mailman/listinfo/coin-discuss<br>
</tt></font>
<br>