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<tt>That seems to have fixed it for me - at least for instance =
small/6.1.aap. Thanks, John.<br>
<br>
Peter, let us know if this cleared it up for you - or if you still have
trouble.<br>
<br>
Matt<br>
<br>
</tt><br>
<blockquote
cite="midOF44313984.0F74DA14-ON85256FE8.0050B77B-85256FE8.0050DADE@us.ibm.com"
type="cite"><br>
<font face="sans-serif" size="2">Hopefully fixed problem (and fixed
unitTest)</font>
<br>
<br>
<font face="sans-serif" size="2">John Forrest</font>
<br>
<br>
<br>
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<td width="40%"><font face="sans-serif" size="1"><b>Matthew
Galati <a class="moz-txt-link-rfc2396E" href="mailto:magh@lehigh.edu"><magh@lehigh.edu></a></b>
</font><br>
<font face="sans-serif" size="1">Sent by:
<a class="moz-txt-link-abbreviated" href="mailto:coin-lpsolver-bounces@list.coin-or.org">coin-lpsolver-bounces@list.coin-or.org</a></font>
<p><font face="sans-serif" size="1">04/18/2005 11:47 PM</font>
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<div align="right"><font face="sans-serif" size="1">To</font></div>
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<td valign="top"><font face="sans-serif" size="1"><a class="moz-txt-link-abbreviated" href="mailto:coin-bcpdiscuss@list.coin-or.org">coin-bcpdiscuss@list.coin-or.org</a>,
<a class="moz-txt-link-abbreviated" href="mailto:coin-lpsolver@list.coin-or.org">coin-lpsolver@list.coin-or.org</a></font>
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<div align="right"><font face="sans-serif" size="1">cc</font></div>
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<div align="right"><font face="sans-serif" size="1">Subject</font></div>
</td>
<td valign="top"><font face="sans-serif" size="1">[Coin-lpsolver]
Re: [Coin-bcpdiscuss]
BAP question</font></td>
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<font size="3"><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></font><font size="3"><br>
<br>
<br>
</font>
<br>
<font color="blue" 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. And I am using Linux, </font>
<br>
<font color="blue" size="2">By looking at the par.par file, it is
using
AAP_datafile ../Data/small/6.1.aap.</font>
<br>
<font color="blue" size="2">The reason I didn't put the question to
the
discussion list, no one answers my previous questions.</font>
<br>
<font size="3"> </font>
<br>
<font color="blue" size="2">Thanks,</font>
<br>
<font size="3"> </font>
<br>
<font color="blue" size="2">Peter.<br>
</font>
<br>
<font size="3">Sending this again.... this time I removed the long
LOG
file.<br>
<br>
Matt<br>
</font>
<br>
<font size="3">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 </font><a
href="http://sagan.ie.lehigh.edu/coin/COIN_EXAMPLES/AAP_BP/Doc/aap/index.html"><font
color="blue" size="3"><u>http://sagan.ie.lehigh.edu/coin/COIN_EXAMPLES/AAP_BP/Doc/aap/index.html</u></font></a><font
size="3">
?<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>
</font>
<br>
<font size="3"><tt>-- <br>
Matthew Galati - Optimization Developer<br>
SAS Institute - Analytical Solutions<br>
Phone 919-531-0332, R5327 <br>
Fax 919-677-4444<br>
</tt></font><a href="http://coral.ie.lehigh.edu/%7Emagh"><font
color="blue" size="3"><tt><u>http://coral.ie.lehigh.edu/~magh</u></tt></font></a><font
size="3"><tt><br>
</tt></font><a href="http://ordlnx2.na.sas.com/projects/OptWiki"><font
color="blue" size="3"><tt><u>http://ordlnx2.na.sas.com/projects/OptWiki</u></tt></font></a><font
size="3"><tt><br>
</tt></font><a
href="http://www.sas.com/technologies/analytics/optimization/"><font
color="blue" size="3"><tt><u>http://www.sas.com/technologies/analytics/optimization/</u></tt></font></a>
<br>
<font size="3"><br>
<br>
-------- Original Message -------- </font>
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<div align="right"><font size="3"><b>Subject: </b></font></div>
</td>
<td width="82%"><font size="3">BAP question</font>
</td>
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<td valign="top">
<div align="right"><font size="3"><b>Date: </b></font></div>
</td>
<td><font size="3">Fri, 15 Apr 2005 15:38:39 -0500</font>
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<div align="right"><font size="3"><b>From: </b></font></div>
</td>
<td><font size="3">Heesu Hwang </font><a
href="mailto:hxh9528@exchange.uta.edu"><font color="blue" size="3"><u><hxh9528@exchange.uta.edu></u></font></a>
</td>
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<td valign="top">
<div align="right"><font size="3"><b>To: </b></font></div>
</td>
<td><a href="mailto:magh@lehigh.edu"><font color="blue" size="3"><u><magh@lehigh.edu></u></font></a></td>
</tr>
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<font size="3"><br>
</font>
<br>
<font size="3"><tt>Dear, M.V. Galati.<br>
<br>
My name is Heesu Hwang, and I am a Ph.D student in IMSE of University of<br>
Texas at Arlington, Texas, USA.<br>
My current research is about generating columns using COIN/BCP.<br>
I came across your example and have tried to run it after compilation.<br>
It has given some results, however didn't show them all, terminating
with<br>
<br>
"Segmentation fault" message.<br>
<br>
I am not good a Unix, but usually I've got that kind of messages when I<br>
used pointers improperly or too much memory spaces.<br>
<br>
Attached is the result.<br>
Could you give me some comments on it?<br>
<br>
Sincerely,<br>
<br>
Heesu Hwang.<br>
</tt></font>
<br>
<hr><font size="3"><tt><br>
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color="blue" size="3"><tt><u>http://list.coin-or.org/mailman/listinfo/coin-bcpdiscuss</u></tt></font></a><font
size="3"><tt><br>
</tt></font>
<br>
<br>
<font size="3"><tt><br>
</tt></font>
<hr><font size="3"><tt><br>
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</tt></font><a href="mailto:Coin-bcpdiscuss@list.coin-or.org"><font
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</font><font size="2"><tt>_______________________________________________<br>
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