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The usual way of calling CLP is through the Open Solver Interface
(OSI)<br>
<br>
This is a nice tutorial:<br>
<a class="moz-txt-link-freetext" href="http://www.coin-or.org/Presentations/CORSINFORMSWorkshop04/coin-osi.pdf">http://www.coin-or.org/Presentations/CORSINFORMSWorkshop04/coin-osi.pdf</a><br>
<br>
<br>
<div class="moz-cite-prefix">On 27-03-2014 06:43, Dimitris Tzionas
wrote:<br>
</div>
<blockquote
cite="mid:CAL43cD_hh0tS6xM_V84-3Uyd3ZRRwe3VQNB7QxeHb6KWQ_JyCA@mail.gmail.com"
type="cite">
<div dir="ltr">Thank you all very much for your answers!
<div><br>
</div>
<div>Haroldo is right at the point I think.</div>
<div>It is a great thing that Clp is still alive and well, as
you say, but it seems that the documentation of GLPK and
lpsolve is more welcoming for a newcomer.</div>
<div><br>
</div>
<div>Could you please propose some resources like simple
problem-oriented tutorials/code snippets that ease the
learning curve?<br>
As said, my problem is very easy, and with GLPK I had
something running quite easy,</div>
<div>but I would be interested in using something more modern,</div>
<div>so that any learning curve at this point will work as an
investment for future, more complex needs.</div>
<div><br>
</div>
<div>I was planning to use Clp and Osi (as Miles also kindly
proposes), but finding nice resources seems to be not the
easiest job.</div>
<div><br>
</div>
<div>Thank you again,</div>
<div>dimitris</div>
<div><br>
</div>
<div><br>
</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Thu, Mar 27, 2014 at 2:40 AM,
Haroldo Gambini Santos <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:haroldo.santos@gmail.com" target="_blank">haroldo.santos@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Not only
actively supported but it is much faster than other open
source LP solvers (i.e. several times faster and more stable
than GLPK or LPSolve).<br>
<br>
This is one big difference from GLPK, for example, GLPK has
a great documentation, but lacks performance and stability
in my experience.<br>
<br>
Cheers,
<div>
<div class="h5"><br>
<br>
<br>
On 26-03-2014 20:40, Julian Hall wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear Dimitris<br>
<br>
Clp is certainly actively supported and is used so
much that you can be confident that it will be around
for a long time to come. Its author [John Forrest]
continues to fix bugs in it---not that they come up
very often---and other people in the COIN-OR community
help to keep related interface software up-to-date.<br>
<br>
However, for various reasons, I can't see much scope
for bringing documentation up-to-date or developing it
further. Although I'm Project Manager, I'm in no
position to develop John's code, and I don't think
anyone else is, or is likely to. My assessment of it
is that it's pretty good as a revised simplex solver
and to improve it significantly would require a lot of
work and probably a major re-write. Who might have the
time to do this, I cannot imagine.<br>
<br>
There's still a lot that can be learned from it: Miles
Lubin incorporated some utilities into the work I did
with him, and my recent PhD [Qi Huangfu] also studied
it. Indeed, if you're looking for "a nice linear
programming library with a nice c++ API" then maybe
it's time that I made Qi's simplex solver available:
it's very concise and its performance is comparable
with that of Clp. This has been on my "to do" list
since Qi finished a year ago so it isn't going to
happen before the summer---which in Scotland might
mean never!<br>
<br>
I'd advise you to use Clp and post any queries to <a
moz-do-not-send="true"
href="mailto:clp@list.coin-or.org" target="_blank">clp@list.coin-or.org</a>.
There are great folk on this list who seem happy to
give advice that I can't.<br>
<br>
All the best,<br>
<br>
Julian<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
I'm looking for a nice linear programming library
with a nice c++ API<br>
(preferably not old-fashioned c-like).<br>
Although my current problem is small and simple, it
would be nice to gain<br>
familiarity with a library that has a sustainable
future.<br>
I'm looking into coin's Clp, but I'm a bit confused
regarding the status of<br>
the project.<br>
Most pages seem to be very old, while some examples
were uploaded only 12<br>
months ago.<br>
Could you please comment on the project's status?<br>
Is it actively maintained?<br>
<br>
Best,<br>
dimitris<br>
<br>
</blockquote>
<br>
<br>
<br>
Julian Hall (Operational Research MSc Programme
Director)<br>
-- <br>
Dr. J. A. Julian Hall, Senior Lecturer, School of
Mathematics,<br>
University of Edinburgh, JCMB, King's Buildings,
EDINBURGH, EH9 3JZ, UK.<br>
Room: 6221 Phone: [+44](131) 650 5075 Email: <a
moz-do-not-send="true"
href="mailto:J.A.J.Hall@ed.ac.uk" target="_blank">J.A.J.Hall@ed.ac.uk</a><br>
Fax: [+44](131) 650 6553 Web: <a
moz-do-not-send="true"
href="http://www.maths.ed.ac.uk/people/show/person/47"
target="_blank">http://www.maths.ed.ac.uk/people/show/person/47</a><br>
<br>
</blockquote>
<br>
-- <br>
</div>
</div>
==================================================<span
class="HOEnZb"><font color="#888888"><br>
Haroldo Gambini Santos<br>
D.Sc, Computer Science<br>
Universidade Federal de Ouro Preto<br>
<a moz-do-not-send="true"
href="http://www.decom.ufop.br/haroldo/"
target="_blank">http://www.decom.ufop.br/haroldo/</a><br>
<br>
</font></span></blockquote>
</div>
<br>
</div>
<br>
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
==================================================
Haroldo Gambini Santos
D.Sc, Computer Science
Universidade Federal de Ouro Preto
<a class="moz-txt-link-freetext" href="http://www.decom.ufop.br/haroldo/">http://www.decom.ufop.br/haroldo/</a></pre>
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