[PPL-devel] [GIT] ppl/w3ppl(master): Mentioned the corrections applied to a couple of ppl_lpsol test files

[Enea Zaffanella]

Module: ppl/w3ppl
Branch: master
Commit: 20d3d45bcf88187d53e04a060349795332737ad3
URL:    http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/w3ppl.git;a=commit;h=20d3d45bcf88187d53e04a060349795332737ad3

Author: Enea Zaffanella <zaffanella at cs.unipr.it>
Date:   Sat Apr  2 10:36:24 2011 +0200

Mentioned the corrections applied to a couple of ppl_lpsol test files
that are required to get a stable behavior across different versions
of glpk.

---

 htdocs/Bugs/archive.raw |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/htdocs/Bugs/archive.raw b/htdocs/Bugs/archive.raw
index e161f6a..4cd3ce2 100644
--- a/htdocs/Bugs/archive.raw
+++ b/htdocs/Bugs/archive.raw
@@ -121,6 +121,25 @@ Relevant commit is <A HREF="http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;
 
 <DL>
 
+<DT><STRONG>January 9, 2010</STRONG></DT>
+<DD>
+Modified <CODE>ppl_lpsol</CODE> test files <CODE>ex1.mps</CODE> and
+<CODE>unboundedmin.mps</CODE> so as to explicitly flag problem variables
+to be integer ones. This change allows to obtain a stable output for the
+two tests across different versions of <CODE>glpk</CODE>.
+The problem was caused by a change of behavior, first occurring in
+<CODE>glpk-4.38</CODE>, in the MPS file parsing routines.
+For more details, see the mailing list threads
+<A HREF="http://lists.gnu.org/archive/html/bug-glpk/2010-01/msg00005.html">[Bug-glpk] Variables erroneously read as binary?</A>
+and
+<A HREF="http://www.cs.unipr.it/pipermail/ppl-devel/2011-April/017407.html">[PPL-devel] [Fink-devel] ppl-0.10.2 check thorough test fail</A>.
+
+The two relevant commits are
+<A HREF="http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=97ce932e012943328164d387cfe9a8d2196ca171">97ce932e012943328164d387cfe9a8d2196ca171</A>
+and
+<A HREF="http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=56ee86b9ccf001c8dc2ab1558332e9691b2eff3f">56ee86b9ccf001c8dc2ab1558332e9691b2eff3f</A>.
+</DD>
+
 <DT><STRONG>August 15, 2009</STRONG></DT>
 <DD>
 Fixed a bug whereby <CODE>maximize</CODE> and <CODE>minimize</CODE>