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<DIV style="FONT: 10pt arial">----- Original Message -----
<DIV style="BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A
title=grun@cs.sfu.ca href="mailto:grun@cs.sfu.ca">Gabrielle A. Grun</A> </DIV>
<DIV><B>To:</B> <A title=cbc-tickets@list.coin-or.org
href="mailto:cbc-tickets@list.coin-or.org">cbc-tickets@list.coin-or.org</A>
</DIV>
<DIV><B>Sent:</B> Sunday, February 07, 2010 2:44 PM</DIV>
<DIV><B>Subject:</B> Re: [Cbc-tickets] [COIN-OR Branch-and-Cut MIP Solver] #87:
CBC 2.4 crashes on Windows platfrom in Debug mode</DIV></DIV>
<DIV><BR></DIV>
<DIV>Hi,</DIV>
<DIV>There have been issues with running previous versions of Cbc on
Windows.</DIV>
<DIV>Look out for the alternateScan in CbcTree:bestNode---it may not be
operational.</DIV>
<DIV>Try running sample2 with CbcCompareUser:::test fixed to always return
false; this satisfies the internal Microsoft requirement of strict weak ordering
for predicates.</DIV>
<DIV>Thanks.</DIV>
<DIV> </DIV>
<DIV><BR>
<BR>Gabrielle A. Grün, Ph.D. Student<BR>School of Computing Science<BR>Simon
Fraser University<BR>8888 University Drive<BR>Burnaby, BC<BR>V5A 1S6<BR><<A
href="http://www.cs.sfu.ca/~grun">http://www.cs.sfu.ca/~grun</A>> </DIV>
<DIV> </DIV>
<DIV><BR> </DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=coin-trac@coin-or.org href="mailto:coin-trac@coin-or.org">COIN-OR
Branch-and-Cut MIP Solver</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=cbc-tickets@list.coin-or.org
href="mailto:cbc-tickets@list.coin-or.org">cbc-tickets@list.coin-or.org</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, February 05, 2010 6:07
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Cbc-tickets] [COIN-OR
Branch-and-Cut MIP Solver] #87: CBC 2.4 crashes on Windows platfrom in Debug
mode</DIV>
<DIV><BR></DIV>#87: CBC 2.4 crashes on Windows platfrom in Debug
mode<BR>-----------------------------+----------------------------------------------<BR> Reporter:
kistamas
| Owner:
somebody<BR> Type:
defect
| Status: new
<BR> Priority:
major
| Milestone:
<BR>Component: component1
|
Version:
<BR> Keywords: Cbc, Debug mode |
<BR>-----------------------------+----------------------------------------------<BR> Hi,<BR><BR> I
have downloaded CBC 2.4 and try to use it on Windows 7.<BR> My
development environment: Microsoft Visual C++ 2008.<BR> I compiled in
Debug mode, and run sample2.cpp on flugpl.mps.<BR> I did not add any cut
generators.<BR> The crash occurs in CbcModel::branchAndBound line
3910.<BR><BR> This problem is even more mysterious because whether tree
search crashed<BR> or not depended on the cut generators I
added.<BR> Experiment 1) I added Gomory cuts, and the program terminated
properly.<BR> Experiment 2) I added CglLandP cuts, and CBC crashed, but
now at a<BR> different location: CbcModel::branchAndBound(), line
3681,<BR> and inside that CbcTree::bestNode(double
cutoff=1.0000000000000001e+050)<BR> Line 273.<BR><BR> Thank you for
providing some feedback.<BR><BR> Tamas Kis<BR><BR>-- <BR>Ticket URL:
<<A
href="https://projects.coin-or.org/Cbc/ticket/87">https://projects.coin-or.org/Cbc/ticket/87</A>><BR>COIN-OR
Branch-and-Cut MIP Solver <<A
href="http://projects.coin-or.org/Cbc">http://projects.coin-or.org/Cbc</A>><BR>An
LP-based branch-and-cut MIP
solver.<BR><BR>_______________________________________________<BR>Cbc-tickets
mailing list<BR><A
href="mailto:Cbc-tickets@list.coin-or.org">Cbc-tickets@list.coin-or.org</A><BR><A
href="http://list.coin-or.org/mailman/listinfo/cbc-tickets">http://list.coin-or.org/mailman/listinfo/cbc-tickets</A></BLOCKQUOTE>
<DIV><BR>
<BR>Gabrielle A. Grün, Ph.D. Student<BR>School of Computing Science<BR>Simon
Fraser University<BR>8888 University Drive<BR>Burnaby, BC<BR>V5A 1S6<BR><<A
href="http://www.cs.sfu.ca/~grun">http://www.cs.sfu.ca/~grun</A>> </DIV>
<DIV> </DIV>
<DIV><BR> </DIV>
<DIV><BR>
<BR>Gabrielle A. Grün, Ph.D. Student<BR>School of Computing Science<BR>Simon
Fraser University<BR>8888 University Drive<BR>Burnaby, BC<BR>V5A 1S6<BR><<A
href="http://www.cs.sfu.ca/~grun">http://www.cs.sfu.ca/~grun</A>> </DIV>
<DIV> </DIV>
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