<div dir="ltr"><div><font face="monospace">Hi Mike,</font></div><div><font face="monospace"></font> </div><div><font face="monospace">Here is something that I noticed when executing a CMPL problem with the default options. The first 27 lines of output that comes out:</font></div><div> </div><div><font face="monospace">---------------------------------------------------------------------------------------------------</font></div><div><font face="monospace">Cmpl: cmpl prob04.cmpl<br>CMPL model generation - running</font></div><div><font face="monospace">CMPL version: 1.10.0<br>Authors: Thomas Schleiff, Mike Steglich<br>Distributed under the GPLv3</font></div><div><font face="monospace">create model instance ...<br>write model instance ...<br>CMPL model generation - finished</font></div><div><font face="monospace">Solver - running</font></div><div><font face="monospace">Welcome to the CBC MILP Solver<br>Version: 2.8.8<br>Build Date: Dec 21 2013<br>Revision Number: 1998</font></div><div><font face="monospace">command line - C:\Program Files (x86)\Cmpl\bin\..\Thirdparty\CBC\cbc prob04.mps max solve gsolu prob04.gsol (default strategy 1)<br>At line 2 NAME prob04.cmpl<br>At line 3 ROWS<br>At line 7 COLUMNS<br>At line 16 RHS<br>At line 18 RANGES<br>At line 19 BOUNDS<br>At line 23 ENDATA<br>Problem prob04.cmpl has 2 rows, 3 columns and 6 elements</font></div><div><div><font face="monospace">---------------------------------------------------------------------------------------------------</font></div><div><font face="Courier New"></font> </div><div><font face="Courier New">Notice the line 19 which starts of with: command line - C:\Program File (x86) ....</font></div><div><font face="Courier New"></font> </div><div><font face="Courier New">Here is my question. I did not install CMPL in Program Files, instead in D:\DPF\CMPL. So why should the command line start with C:\... Any thoughts.</font></div><div><font face="Courier New"></font> </div><div><font face="Courier New">Regards,</font></div><div><font face="Courier New">Indrajit</font></div><div> </div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Nov 23, 2014 at 12:07 AM, Indrajit Sen Gupta <span dir="ltr"><<a href="mailto:indrajitsg@gmail.com" target="_blank">indrajitsg@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi Mike,</div><div> </div><div>You are right. I will stick with CBC. All this started when I tried to connect to CPLEX. SCIP was just another optimizer that I downloaded to figure out why this problem is happening. </div><div> </div><div>Thanks for your help anyway.</div><div> </div><div>Regards,</div><div>Indrajit</div><div> </div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Nov 23, 2014 at 12:00 AM, Mike Steglich <span dir="ltr"><<a href="mailto:mike.steglich@berlin.de" target="_blank">mike.steglich@berlin.de</a>></span> wrote:<br><blockquote style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid" class="gmail_quote"><div dir="auto"><div><span></span></div><div><div>Hi Indraji,</div><div><br></div><div>I'm not sure why scip is not working with Cmpl on your system with a setting that seems fine. It sounds a bit like Murphy's Law. The hardcore workarround is to copy all scip files into Cmpl/bin and remove the path in the scip entry in cmpl.opt.</div><div><br></div><div>Why don't you use Cbc? The performance is similar to Scip.</div><div><br></div><div>Cheers,</div><div><br></div><div>Mike</div><div><br><br><br></div><div><br>Am 22.11.2014 um 19:07 schrieb Indrajit Sen Gupta <<a href="mailto:indrajitsg@gmail.com" target="_blank">indrajitsg@gmail.com</a>>:<br><br></div><div><div><blockquote type="cite"><div><div dir="ltr"><div>Hi Mike,</div><div> </div><div>SCIP works out of the box. I am using command line for all purposes. But here is the funny thing. I exported the problem from CMPL to MPS format and ran it through SCIP and got a sub optimal solution!!! I am not familiar with SCIP - just read the mps file and entered optimize. Its actually a small text book problem and the results shouldn't be different.</div><div> </div><div>Regards,</div><div>Indrajit</div><div> </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Nov 22, 2014 at 11:12 PM, Mike Steglich <span dir="ltr"><<a href="mailto:mike.steglich@th-wildau.de" target="_blank">mike.steglich@th-wildau.de</a>></span> wrote:<br><blockquote style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid" class="gmail_quote"><div style="word-wrap:break-word"><br><div><br><blockquote type="cite"><div>Anfang der weitergeleiteten Nachricht:</div><br><div style="margin:0px"><span style="color:rgba(0,0,0,1);font-family:-webkit-system-font,Helvetica Neue,Helvetica,sans-serif"><b>Von: </b></span><span style="font-family:-webkit-system-font,Helvetica Neue,Helvetica,sans-serif">Mike Steglich <<a href="mailto:mike.steglich@th-wildau.de" target="_blank">mike.steglich@th-wildau.de</a>><br></span></div><div style="margin:0px"><span style="color:rgba(0,0,0,1);font-family:-webkit-system-font,Helvetica Neue,Helvetica,sans-serif"><b>Betreff: </b></span><span style="font-family:-webkit-system-font,Helvetica Neue,Helvetica,sans-serif"><b>Aw: [Cmpl] Error connecting to CPLEX</b><br></span></div><div style="margin:0px"><span style="color:rgba(0,0,0,1);font-family:-webkit-system-font,Helvetica Neue,Helvetica,sans-serif"><b>Datum: </b></span><span style="font-family:-webkit-system-font,Helvetica Neue,Helvetica,sans-serif">22. November 2014 18:42:16 MEZ<br></span></div><div style="margin:0px"><span style="color:rgba(0,0,0,1);font-family:-webkit-system-font,Helvetica Neue,Helvetica,sans-serif"><b>An: </b></span><span style="font-family:-webkit-system-font,Helvetica Neue,Helvetica,sans-serif">Indrajit Sen Gupta <<a href="mailto:indrajitsg@gmail.com" target="_blank">indrajitsg@gmail.com</a>><br></span></div><div><div><br><div><div style="word-wrap:break-word">Hi Indrajit,<div><br></div><div>Framework is still in the (temporary) search path if you use Coliop.bat or cmplShell.bat. Does scip work out of the box w/o Cmpl? </div><div><br></div><div>Cheers,</div><div><br></div><div>Mike</div><div><br></div><div><br><div><blockquote type="cite"><div>Am 22.11.2014 um 18:36 schrieb Indrajit Sen Gupta <<a href="mailto:indrajitsg@gmail.com" target="_blank">indrajitsg@gmail.com</a>>:</div><br><div><div dir="ltr"><div>Still no luck. :( Copied all the dlls and lib files to the Frameworks folder. I made sure that Frameworks is in search path. Am giving up for tonight.</div><div> </div><div>Regards,</div><div>Indrajit</div><div> </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Nov 22, 2014 at 10:45 PM, Mike Steglich <span dir="ltr"><<a href="mailto:mike.steglich@th-wildau.de" target="_blank">mike.steglich@th-wildau.de</a>></span> wrote:<br><blockquote style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid" class="gmail_quote"><div style="word-wrap:break-word">The entry <i>ScipFileName = ../Thirdparty/scip/scip-3.1.0.win.x86.msvc.opt.spx.ld.exe</i> is fine. <div><br><div>As mentioned before, please move the required libs (scip-3.1.0.win.x86.msvc.opt.spx.ld.dll and scip-3.1.0.win.x86.msvc.opt.spx.ld.lib) into Cmpl/Frameworks … </div><div><br><div><blockquote type="cite"><div>Am 22.11.2014 um 18:08 schrieb Indrajit Sen Gupta <<a href="mailto:indrajitsg@gmail.com" target="_blank">indrajitsg@gmail.com</a>>:</div><div><div><br><div><div dir="ltr"><div>These are the three files that I have in /Thirdparty/SCIP/</div><div> </div><div>scip-3.1.0.win.x86.msvc.opt.spx.ld.dll</div><div>scip-3.1.0.win.x86.msvc.opt.spx.ld.exe</div><div>scip-3.1.0.win.x86.msvc.opt.spx.ld.lib</div><div> </div><div>And this is the line in /bin/cmpl.opt</div><div> </div><div>ScipFileName = ../Thirdparty/SCIP/scip-3.1.0.win.x86.msvc.opt.spx.ld.exe</div><div> </div><div>Regards,</div><div>Indrajit</div><div> </div><div> </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Nov 22, 2014 at 10:20 PM, Mike Steglich <span dir="ltr"><<a href="mailto:mike.steglich@th-wildau.de" target="_blank">mike.steglich@th-wildau.de</a>></span> wrote:<br><blockquote style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid" class="gmail_quote"><div style="word-wrap:break-word">The following entries are working on my Windows test system:<div><br></div><div><div>CbcPath = ../Thirdparty/CBC/</div><div>GlpkPath = ../Thirdparty/GLPK/</div><div>ScipFileName = ../Thirdparty/scip/scip.exe</div><div>CplexFileName = </div><div><br></div><div><br></div><div>It works as expected when I include the CMPL header entry <i>%arg -solver scip</i> in my model.</div><div><br></div><div>Please copy the required DLLs into CMPL/Frameworks or in another folder that is in the search path.</div><div><br></div><div>This should work similar for Cplex.</div><div><br></div><div>Cheers,</div><div><br></div><div>Mike</div><div><br></div><div><br></div><div><br></div><div><blockquote type="cite"><div>Am 22.11.2014 um 16:41 schrieb Indrajit Sen Gupta <<a href="mailto:indrajitsg@gmail.com" target="_blank">indrajitsg@gmail.com</a>>:</div><div><div><br><div><div dir="ltr"><div>I tried all of the above and some more - but none worked. </div><div> </div><div>I tried putting ../../ before the path to filename. So the full path would look like: ../../AMPL/ampl/cplex.exe</div><div> </div><div>I even copied cplex.exe and cplex1260.dll into a folder under Thirdparty and tried running it with filename path as: ../Thirdparty/CPLEX/cplex.exe</div><div> </div><div>Regards,</div><div>Indrajit</div><div> </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Nov 22, 2014 at 3:02 PM, Mike Steglich <span dir="ltr"><<a href="mailto:mike.steglich@th-wildau.de" target="_blank">mike.steglich@th-wildau.de</a>></span> wrote:<br><blockquote style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid" class="gmail_quote">Hi Indrajit,<br>
<br>
It is unfortunately not possible to use drive letters to specify where Cplex is located. Furthermore please use / instead of \. e.g. /DPF/Ampl/ampl/cplex.exe.<br>
<br>
Cheers,<br>
<br>
Mike<br>
<br>
<br>
<br>
> Am 22.11.2014 um 09:29 schrieb Kamil Figiela <<a href="mailto:kfigiela@agh.edu.pl" target="_blank">kfigiela@agh.edu.pl</a>>:<br>
<div><div>><br>
> Probably it should say:<br>
><br>
> CplexFileName = D:\DPF\AMPL\ampl\cplex.exe<br>
><br>
> Best,<br>
> Kamil<br>
><br>
>> Wiadomość napisana przez Indrajit Sen Gupta <<a href="mailto:indrajitsg@gmail.com" target="_blank">indrajitsg@gmail.com</a>> w dniu 22 lis 2014, o godz. 05:56:<br>
>><br>
>> Hi Mike,<br>
>><br>
>> I have a CPLEX demo version which came with AMPL demo version. I tried to use this solver with the option:<br>
>><br>
>> %arg -solver cplex<br>
>><br>
>> and with the following line in cmpl.opt file:<br>
>><br>
>> CplexFileName = D:\DPF\AMPL\ampl\<br>
>><br>
>> This is the path to the folder where cplex.exe is located. When I try to execute a model it says<br>
>><br>
>> Error (interfaces): can not connect the solver: Cplex -><br>
>><br>
>> Any idea why this is happening?<br>
>><br>
>> Regards,<br>
>> Indrajit<br>
>><br>
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