[Coin-discuss] OsiXpr unitTest failed

[Matthew Saltzman]

Dash programmers and I are working on a replacement OsiXpr module that
will use the new Xpress API and should fix most of these problems.  Watch
for it in the next couple of weeks.

Thanks for your patience.

On Tue, 6 Jul 2004, Hamish Waterer wrote:

>
> The Osi I downloaded via cvs (6 Jul) fails the unit test using the Xpress
> solver. I'm using g++ 3.3.2 under Linux and Xpress 15.20.05. Am I doing
> something wrong?
>
> ?420 Error: Too many saved matrices in savmat
> unitTest: OsiXprSolverInterface.cpp:2718: void
> OsiXprSolverInterface::activateMe() const: Assertion `iret == 0' failed.
>
> Program received signal SIGABRT, Aborted.
> [Switching to Thread -1084952448 (LWP 12406)]
> 0x0023fc32 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
> (gdb) bt
> #0  0x0023fc32 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
> #1  0x0027c989 in raise () from /lib/tls/libc.so.6
> #2  0x0027e342 in abort () from /lib/tls/libc.so.6
> #3  0x00276338 in __assert_fail () from /lib/tls/libc.so.6
> #4  0x0086963c in OsiXprSolverInterface::activateMe() const ()
>     from /home/hwat006/COIN/lib/libOsiXpr.so
> #5  0x00863c65 in OsiXprSolverInterface::getColLower() const ()
>     from /home/hwat006/COIN/lib/libOsiXpr.so
> #6  0x08056a7a in OsiXprSolverInterfaceUnitTest(std::string const&,
> std::string const&) (mpsDir=@0xbfe9c830, netlibDir=@0xbfe9c790)
>      at OsiXprSolverInterfaceTest.cpp:763
> #7  0x0808993d in main (argc=1, argv=0xbfe9c904) at unitTest.cpp:348
>
> I noticed the CVS log for COIN/Osi/OsiXpr/OsiXprSolverInterface.cpp,
> revision 1.1.2.4 (we're up to 1.9 now), has the comment "This still
> doesn't pass the unit test, and won't, due to broken multiple problem
> management in XPRESS v12 and brain-damaged fix in the legacy API in XPRESS
> v13. It should work, though, if the number of problem saves and restores
> is not too large."
>
> Is this related? Has it been fixed (in Xpress?)? How will this impact my
> use of the Osi with Xpress as the solver?
>
> Thanks in advance for any help.
> Hamish
>
> --
> Hamish Waterer <h.waterer at auckland.ac.nz>
> Tel +64 9 3737 599 x83014, Fax +64 9 3737 468
> Department of Engineering Science
> The University of Auckland
> _______________________________________________
> Coin-discuss mailing list
> Coin-discuss at www-124.ibm.com
> http://www-124.ibm.com/developerworks/oss/mailman/listinfo/coin-discuss
>

-- 
		Matthew Saltzman

Clemson University Math Sciences
mjs AT clemson DOT edu
http://www.math.clemson.edu/~mjs