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<tt>Peter,<br>
<br>
It seems to be crashing because, after finding an LP to be infeasible
(in BCP_lp_fathom), it is asking CLP for a dual ray and sending this to
BCP_restore_feasibility - but CLP returns NULL for the dual ray. <br>
<br>
Is anyone using BCP plus a recent version of CLP to do pricing?<br>
<br>
Matt</tt><br>
<br>
<br>
<br>
<blockquote cite="mid42646EAA.1040909@lehigh.edu" type="cite">
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<div><span class="750515700-19042005"><font color="#0000ff" face="굴림"
size="2">Hi Peter,<br>
<br>
I am sorry that the discussion list is not as active as you might hope.
In the future, if your question is not answered by bcpdiscuss, you
should try the general coin discussion list. There are only a few
people on this list, but many on coin-discuss.<br>
<br>
I was able to repeat the error. It looks like the dual vector (pi) is
NULL at the point where it crashes. Last time I tried this (over one
year ago), it was working fine. So, something must have changed in BCP
or CLP. When I have some time, I will debug it and get back to you.<br>
<br>
Thanks,<br>
Matt<br>
<br>
<br>
<br>
------------------------------<br>
------------------------------<br>
<br>
Yes the example is right one from the link.<span
class="812050101-19042005"> And</span> I am using Linux, </font></span></div>
<div><font face="굴림"><font color="#0000ff"><font size="2"><span
class="750515700-19042005"><span class="812050101-19042005">By looking
at the par.par file, it is using </span></span><span
class="750515700-19042005">AAP_datafile ../Data/small/6.1.aap<span
class="812050101-19042005">.</span></span></font></font></font></div>
<div><font face="굴림"><font color="#0000ff"><font size="2"><span
class="750515700-19042005"><span class="812050101-19042005">The reason
I didn't put the question to the discussion list, no one answers my
previous questions.</span></span></font></font></font></div>
<div><font face="굴림"><font color="#0000ff"><font size="2"><span
class="750515700-19042005"><span class="812050101-19042005"></span></span></font></font></font> </div>
<div><font face="굴림"><font color="#0000ff"><font size="2"><span
class="750515700-19042005"><span class="812050101-19042005">Thanks,</span></span></font></font></font></div>
<div><font face="굴림"><font color="#0000ff"><font size="2"><span
class="750515700-19042005"><span class="812050101-19042005"></span></span></font></font></font> </div>
<div><font face="굴림"><font color="#0000ff"><font size="2"><span
class="750515700-19042005"><span class="812050101-19042005">Peter.<br>
<br>
</span></span></font></font></font></div>
<blockquote cite="mid4264555F.5070207@lehigh.edu" type="cite">
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Sending this again.... this time I removed the long LOG file.<br>
<br>
Matt<br>
<br>
<blockquote cite="mid42645461.7050909@lehigh.edu" type="cite">
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Hi Heesu,<br>
<br>
I am forwarding your question to COIN's BCP discussion list. I have not
used BCP in a long time - and some things may have changed.<br>
<br>
Can you tell us more about what type of environment you are running in
(Linux? Unix?), etc. Also, which example instance did you try? Is this
the AAP_BP example from <a class="moz-txt-link-freetext"
href="http://sagan.ie.lehigh.edu/coin/COIN_EXAMPLES/AAP_BP/Doc/aap/index.html">http://sagan.ie.lehigh.edu/coin/COIN_EXAMPLES/AAP_BP/Doc/aap/index.html</a>
?<br>
<br>
I will try to repeat it when I have some free time. Has anyone else
used
AAP_BP? Had any trouble?<br>
<br>
Matt<br>
<br>
<pre class="moz-signature" cols="72">--
Matthew Galati - Optimization Developer
SAS Institute - Analytical Solutions
Phone 919-531-0332, R5327
Fax 919-677-4444
<a class="moz-txt-link-freetext"
href="http://coral.ie.lehigh.edu/%7Emagh">http://coral.ie.lehigh.edu/~magh</a>
<a class="moz-txt-link-freetext"
href="http://ordlnx2.na.sas.com/projects/OptWiki">http://ordlnx2.na.sas.com/projects/OptWiki</a>
<a class="moz-txt-link-freetext"
href="http://www.sas.com/technologies/analytics/optimization/">http://www.sas.com/technologies/analytics/optimization/</a></pre>
<br>
<br>
-------- Original Message --------
<table border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<th align="right" nowrap="nowrap" valign="baseline">Subject:
</th>
<td>BAP question</td>
</tr>
<tr>
<th align="right" nowrap="nowrap" valign="baseline">Date: </th>
<td>Fri, 15 Apr 2005 15:38:39 -0500</td>
</tr>
<tr>
<th align="right" nowrap="nowrap" valign="baseline">From: </th>
<td>Heesu Hwang <a class="moz-txt-link-rfc2396E"
href="mailto:hxh9528@exchange.uta.edu"><hxh9528@exchange.uta.edu></a></td>
</tr>
<tr>
<th align="right" nowrap="nowrap" valign="baseline">To: </th>
<td><a class="moz-txt-link-rfc2396E"
href="mailto:magh@lehigh.edu"><magh@lehigh.edu></a></td>
</tr>
</tbody>
</table>
<br>
<br>
<pre>Dear, M.V. Galati.
My name is Heesu Hwang, and I am a Ph.D student in IMSE of University of
Texas at Arlington, Texas, USA.
My current research is about generating columns using COIN/BCP.
I came across your example and have tried to run it after compilation.
It has given some results, however didn't show them all, terminating with
"Segmentation fault" message.
I am not good a Unix, but usually I've got that kind of messages when I
used pointers improperly or too much memory spaces.
Attached is the result.
Could you give me some comments on it?
Sincerely,
Heesu Hwang.
</pre>
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