<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<div class="moz-cite-prefix">Dear Feng Gao,<br>
<br>
first of all, you can set display/lpinfo to TRUE to see the output
of the LP solver.<br>
<br>
Then, what do you mean with what is going on in the master
problem? There isn't so much going on except for solving the LP
and then calling your pricer. In between, the current LP solution
might be rounded and checked for feasibility. <br>
If you want to get a lot of debug output, you could define
SCIP_DEBUG in lp.c and solve.c, but this will probably flood you
with too much output.<br>
<br>
On the other hand, you can just get the relevant data within your
pricing plugin. For example, the LP solutions status
(SCIPgetLPSolstat()), dual values for constraints, or also the
current LP (SCIPwriteLP()).<br>
<br>
Best,<br>
Gerald<br>
<br>
On 08.04.2015 22:06, Feng Gao wrote:<br>
</div>
<blockquote
cite="mid:CAEptEzWDfoqhW5kGFjiKARycq-w-DjxN0b6AK3BA18WxWGeCCA@mail.gmail.com"
type="cite">
<div dir="ltr">Dear all,
<div><br>
</div>
<div>Is there anybody familiar with the SCIP debug function?
When the column generation process begins, how can we get the
information of what is going on in the master problem except
for the columns generated in variable pricer?</div>
<div><br>
</div>
<div>Thanks in advance,</div>
<div><br>
</div>
<div>Feng Gao</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Scip mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Scip@zib.de">Scip@zib.de</a>
<a class="moz-txt-link-freetext" href="http://listserv.zib.de/mailman/listinfo/scip">http://listserv.zib.de/mailman/listinfo/scip</a>
</pre>
</blockquote>
<br>
</body>
</html>