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<div>Yes. For example look at the Python based Pyomo modeling language. It has support for CBC. Another is JmP which based on the new-ish language Julia from MIT. <br>
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Sent from my iPhone</div>
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On Jul 16, 2015, at 3:49 AM, Louis Mathieu <<a href="mailto:louis.mathieu@student.ecp.fr">louis.mathieu@student.ecp.fr</a>> wrote:<br>
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<p>Hello Marc,</p>
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<p>Thank for your answer,</p>
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<p>One last question, is there any other solution to build the .mps file and have some output data (like printf in glpk) using clp ? If I do not use glpk anymore it does not bother me, I can rewrite my model in another language.</p>
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<p>Regards,</p>
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<p>LM</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>De :</b> Meketon, Marc <<a href="mailto:Marc.Meketon@oliverwyman.com">Marc.Meketon@oliverwyman.com</a>><br>
<b>Envoyé :</b> mercredi 8 juillet 2015 16:23<br>
<b>À :</b> Louis Mathieu; <a href="mailto:clp@list.coin-or.org">clp@list.coin-or.org</a><br>
<b>Objet :</b> RE: switch from gusek (GLPK) to clp</font>
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<span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">I do not believe anyone has completed the GLPK to CLP (or CBC) link. Please look at email from Heinrich Schuchardt:</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"><a href="https://lists.gnu.org/archive/html/help-glpk/2015-05/msg00012.html" style="color: blue; text-decoration: underline;" title="https://lists.gnu.org/archive/html/help-glpk/2015-05/msg00012.html
Ctrl+Cliquer ou appuyer pour suivre le lien">https://lists.gnu.org/archive/html/help-glpk/2015-05/msg00012.html</a></span></p>
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<span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">Heinrich also sent me the following:</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#00B050">“at the time of my testing GMPL postsolve processing did not work. As described in the Wikibook I was only able to export to CSV.<br>
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The relevant coding is in<br>
</span><span style="font-size:11.0pt; font-family:"Calibri","sans-serif""><a href="https://github.com/coin-or/CoinUtils/blob/master/CoinUtils/src/CoinMpsIO.cpp" style="color: blue; text-decoration: underline;">https://github.com/coin-or/CoinUtils/blob/master/CoinUtils/src/CoinMpsIO.cpp</a></span><br>
<span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#00B050">method CoinMpsIO::readGMPL”</span><br>
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<span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">I tend to use GLPK to write out the “freemps” version of the .mps file, call CBC, have CBC write out a solution file, and then read in the solution file. So this is by file transfer,
and it means that any statements you make after the “solve;” statement in GLPK is missing. It also means a lack of integration with GUSEK.</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">-Marc</span></p>
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<b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt; font-family:"Tahoma","sans-serif"">
<a href="mailto:clp-bounces@list.coin-or.org">clp-bounces@list.coin-or.org</a> [<a href="mailto:clp-bounces@list.coin-or.org">mailto:clp-bounces@list.coin-or.org</a>]
<b>On Behalf Of </b>Louis Mathieu<br>
<b>Sent:</b> Wednesday, July 08, 2015 8:17 AM<br>
<b>To:</b> <a href="mailto:clp@list.coin-or.org">clp@list.coin-or.org</a><br>
<b>Subject:</b> [Clp] switch from gusek (GLPK) to clp</span></p>
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<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black">Hello,</span></p>
<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black"> </span></p>
<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black">I am currently working on a linear programming model.</span></p>
<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black"> </span></p>
<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black">I started using GLPK (in fact Gusek). It allowed me to just write my constraints define my variables ... and solve my model.</span></p>
<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black"> </span></p>
<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black">I would like to switch to CLP which seems faster for my model.</span></p>
<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black"> </span></p>
<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black">Could you explain me how to replace Gusek by CLP ? I understood I have to develop in C++ using the API to use CLP solver, but CLP seems to be solving matrix problems (.mps), is
there any way feed clp using a model ? </span></p>
<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black"> </span></p>
<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black">Regards,</span></p>
<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black"> </span></p>
<p style="background:white"><span style="font-family:"Calibri","sans-serif"; color:black">L.M</span></p>
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