<div dir="ltr">I recently wrote a super simple program to convert mps to lp (only using COIN OSI): <a href="https://gist.github.com/gidden/0d9facfbab959346e3bb">https://gist.github.com/gidden/0d9facfbab959346e3bb</a><div><br></div><div>Hth,</div><div>Matt<br><div><br></div><div><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Sep 30, 2015 at 9:49 AM, ovovis <span dir="ltr"><<a href="mailto:tenge@ovovis.de" target="_blank">tenge@ovovis.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">I generated the MPS file out of AMPL. If I understand this process correctly then the variables will be abbreviated and the .col and .row files, that I sent you as well, are meant to translate the mps variables into the original names. Then you should have already all information necessary to reproduce the original names.<div><br></div><div>But maybe I misunderstood your question.</div><div><br></div><div>Please let me know.</div><div><br></div><div>Thomas</div><div><div class="h5"><div><br><div><blockquote type="cite"><div>On Sep 30, 2015, at 4:12 PM, Haroldo Gambini Santos <<a href="mailto:haroldo.santos@gmail.com" target="_blank">haroldo.santos@gmail.com</a>> wrote:</div><br><div>
<div text="#000000" bgcolor="#FFFFFF">
Hi Thomas,<br>
<br>
I converted your MPS to LP to take a look (don't have AMPL here). <br>
Strangely no "bounds" section is generated. <br>
<br>
The MPS conversion also lost the original names, can yon generate
including the original names so that the specific result for
variable ym is visible ?<br>
<br>
Cheers<br>
<br>
<div>On 30-09-2015 10:17, ovovis wrote:<br>
</div>
<blockquote type="cite">
Hi Haraldo,
<div><br>
</div>
<div>have you had a chance to look at the lp yet ?</div>
<div><br>
</div>
<div>Would be great to hear from you. Let me know if I
can be of any further help.</div>
<div><br>
</div>
<div>Thomas</div>
<div><br>
<div>
<blockquote type="cite">
<div>On Sep 28, 2015, at 3:44 PM, Haroldo Gambini
Santos <<a href="mailto:haroldo.santos@gmail.com" target="_blank">haroldo.santos@gmail.com</a>>
wrote:</div>
<br>
<div>
<div text="#000000" bgcolor="#FFFFFF"> Hi Thomas,<br>
<br>
Can you send the LP where the problem occurs ?<br>
<br>
Cheers<br>
<br>
<div>On 28-09-2015 01:37, ovovis
wrote:<br>
</div>
<blockquote type="cite">
Dear cbc team,
<div><br>
</div>
<div>my name is Thomas Enge from Berlin
Germany. We are a small (2 persons) start up company
(see also <a href="http://www.ovovis.de/" target="_blank">www.ovovis.de</a> and
then About us). We use AMPL + cbc internally to
provide a portfolio optimization service to energy
traders. So far we only ran tests with our potential
customers when we detected that cbc violates the
domain definition of variables in the solution for
specific problem settings. Our variables are defined
as >= 0, but the result also produces negative
numbers for these variables. This is the case for
version 2.9.4 - 2.9.6. </div>
<div><br>
</div>
<div>My question is how can we address this
issue best to you ? And is there a way to receive a
quick fix or do we need to wait for the next stable
release ? The latter is very important for us to
understand since it effects our go-live date.</div>
<div><br>
</div>
<div>Thanks in advance for your help</div>
<div><br>
</div>
<div>Thomas Enge</div>
<br>
<br>
<div>
OvvvvvvvvvvvvvvvvvvvOvis<br>
<br>
ovovis GmbH<br>
Dr. Thomas Enge<br>
Stargarder Str. 57<br>
D-10437 Berlin<br>
<br>
M: <a href="tel:%2B49%201515%20910%205118" value="+4915159105118" target="_blank">+49 1515 910 5118</a><br>
F: <a href="tel:%2B49%2030%20538%2010%20188" value="+493053810188" target="_blank">+49 30 538 10 188</a><br>
E: <a href="mailto:tenge@ovovis.de" target="_blank">tenge@ovovis.de</a><br>
W: <a href="http://www.ovovis.de/" target="_blank">www.ovovis.de</a><br>
--------------------------------------<br>
Amtsgericht Charlottenburg<br>
HRB 116742B<br>
Vat-ID: DE262642185<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
</div>
<br>
<br>
<fieldset></fieldset>
<br>
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</blockquote>
<br>
<pre cols="72">--
==================================================
Haroldo Gambini Santos
D.Sc, Computer Science
Universidade Federal de Ouro Preto
<a href="http://www.decom.ufop.br/haroldo/" target="_blank">http://www.decom.ufop.br/haroldo/</a></pre>
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</div>
</blockquote>
</div>
<br>
</div>
</blockquote>
<br>
<pre cols="72">--
==================================================
Haroldo Gambini Santos
D.Sc, Computer Science
Universidade Federal de Ouro Preto
<a href="http://www.decom.ufop.br/haroldo/" target="_blank">http://www.decom.ufop.br/haroldo/</a></pre>
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</div></blockquote></div><br></div></div></div></div><br>_______________________________________________<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr">Matthew Gidden, Ph.D.<br>Postdoctoral Associate, Nuclear Engineering<div>The University of Wisconsin -- Madison<br>Ph. 225.892.3192<br></div></div></div></div></div>
</div>