[Coin-discuss] Osi unitTest core dumps / AMPL driver
Matthew Saltzman
mjs at ces.clemson.edu
Wed Feb 26 23:02:41 EST 2003
On Wed, 26 Feb 2003, Laszlo Ladanyi wrote:
> Hi Leo,
>
> I have found the problem and fixed it. Basically, a compiler flag
> (-fomit-frame-pointer) creeped into COIN/Makefiles/Makefile.Linux and that
> caused the crash on RH8 w/ g++-3.2. With g++-3.2.2 it does not seem to be a
> problem on Debian. Strange...
I didn't see any obvious reference to this in the gcc release notes or in
Red Hat's Bugzilla, so yes, it's a bit strange.
It does fix the Coin unit test failure. It doesn't fix the segfaults if
you don't include libz or gunzip the MPS library.
> So I took out all extra optimization flags and set the optimization to -O6. We
> should probably keep the repository copy clean, and then everyone is welcome
> to tweak compiler flags in their copy.
Yes, it does seem to be easy to screw this up. We must be careful not to
accidentally update Makefiles. If anyone has an idea that would be more
reliable than just trying to pay more attention, that would be helpful.
>
> I'm not sure how much extra speed one gets from these special flags anyways.
> However, I'd be definitely interested if someone decides to play with them :-).
> The following flags are of interest:
> -fomit-frame-pointer -ffast-math -fno-math-errno -funsafe-math-optimizations
> -fno-trapping-math
>
> --Laci
>
> On Tue, 25 Feb 2003, Leonardo B Lopes wrote:
>
> > Sorry if you get this message twice. I sent it last night from a
> > different computer and there was an email messup.
> >
> > Thanks for the quick response. The Platform is RH Linux 8,
> > g++ 3.2, libc-2.2.93.
> >
> > I just tried rebuilding from scratch and got the same results. I also
> > tried the exact same thing on my windows/cygwin box and everything seems
> > fine, except that the Netlib collection was not downloaded, and when I
> > checked out the netlib module, it got into the wrong place. I then
> > copied it to where /Osi/unitTest expected it to be, and it seems to be
> > OK. Anyone able to build it on RH8?
> >
> > TIA,
> > Leo.
> >
> > JP Fasano wrote:
> > >
> > >
> > >
> > > I just grabbed the latest code from cvs, built, and ran
> > > COIN\Osi\Test\unitTest.cpp.
> > > It is running ok for myself.
> > > What platform are you running on?
> > > I did this test on windows using MS compiler.
> > >
> > > Here is the output:
> > > --------------------------
> > > Testing OsiRowCut with OsiClpSolverInterface
> > > Testing OsiColCut with OsiClpSolverInterface
> > > Testing OsiRowCutDebugger with OsiClpSolverInterface
> > > Testing OsiSimplexInterface with OsiClpSolverInterface
> > > Testing OsiCuts
> > > Testing OsiClpSolverInterface
> > > Testing OsiSolverInterface
> > > processing mps file: 25fv47 (1 out of 90)
> > > clpSolverInterface 5501.85 = 5501.85 ; okay - took 10.595 seconds.
> > > processing mps file: 80bau3b (2 out of 90)
> > > clpSolverInterface 987224 = 987224 ; okay - took 8.293 seconds.
> > > processing mps file: adlittle (3 out of 90)
> > > clpSolverInterface 225495 = 225495 ; okay - took 0.08 seconds.
> > > processing mps file: afiro (4 out of 90)
> > > clpSolverInterface -464.753 = -464.753 ; okay - took 0.04 seconds.
> > > processing mps file: agg (5 out of 90)
> > > clpSolverInterface -3.59918e+007 = -3.59918e+007 ; okay - took 0.211
> > > seconds.
> > > processing mps file: agg2 (6 out of 90)
> > > clpSolverInterface -2.02393e+007 = -2.02393e+007 ; okay - took 0.28
> > > seconds.
> > > processing mps file: agg3 (7 out of 90)
> > > clpSolverInterface 1.03121e+007 = 1.03121e+007 ; okay - took 0.31 seconds.
> > > processing mps file: bandm (8 out of 90)
> > > clpSolverInterface -158.628 = -158.628 ; okay - took 0.471 seconds.
> > > processing mps file: beaconfd (9 out of 90)
> > > clpSolverInterface 33592.5 = 33592.5 ; okay - took 0.12 seconds.
> > > processing mps file: blend (10 out of 90)
> > > clpSolverInterface -30.8121 = -30.8121 ; okay - took 0.081 seconds.
> > > processing mps file: bnl1 (11 out of 90)
> > > clpSolverInterface 1977.63 = 1977.63 ; okay - took 1.732 seconds.
> > > processing mps file: bnl2 (12 out of 90)
> > > clpSolverInterface 1811.24 = 1811.24 ; okay - took 2.884 seconds.
> > > processing mps file: boeing1 (13 out of 90)
> > > clpSolverInterface -335.214 = -335.214 ; okay - took 0.621 seconds.
> > > processing mps file: boeing2 (14 out of 90)
> > > clpSolverInterface -315.019 = -315.019 ; okay - took 0.131 seconds.
> > > processing mps file: bore3d (15 out of 90)
> > > clpSolverInterface 1373.08 = 1373.08 ; okay - took 0.12 seconds.
> > > processing mps file: brandy (16 out of 90)
> > > clpSolverInterface 1518.51 = 1518.51 ; okay - took 0.31 seconds.
> > > processing mps file: capri (17 out of 90)
> > > clpSolverInterface 2690.01 = 2690.01 ; okay - took 0.24 seconds.
> > > processing mps file: cycle (18 out of 90)
> > > clpSolverInterface -5.22639 = -5.22639 ; okay - took 1.583 seconds.
> > > processing mps file: czprob (19 out of 90)
> > > clpSolverInterface 2.1852e+006 = 2.1852e+006 ; okay - took 1.292 seconds.
> > > processing mps file: d2q06c (20 out of 90)
> > > ....
> > >
> > >
> > > JP Fasano
> > > jpfasano at us.ibm.com
> > > (914)945-1324 (tie line 862-1324)
> > > COIN www.coin-or.org
> > >
> > >
> > > |---------+------------------------------------------------>
> > > | | Leonardo B Lopes |
> > > | | <leo at iems.northwestern.edu> |
> > > | | Sent by: |
> > > | | coin-discuss-admin at www-124.southbury.|
> > > | | usf.ibm.com |
> > > | | |
> > > | | |
> > > | | 02/24/2003 08:57 PM |
> > > | | Please respond to coin-discuss |
> > > | | |
> > > |---------+------------------------------------------------>
> > > >----------------------------------------------------------------------------------------------|
> > > | |
> > > | To: coin-discuss at www-124.southbury.usf.ibm.com |
> > > | cc: |
> > > | Subject: [Coin-discuss] Osi unitTest core dumps / AMPL driver |
> > > | |
> > > >----------------------------------------------------------------------------------------------|
> > >
> > >
> > >
> > >
> > > I just downloaded Osi, Clp, Cgl, and Sbb (2/24 ~ 18:30CT). Did my best
> > > to follow the instructions, but Osi unitTest aborts with a core dump at
> > > OsiRowCutTest.cpp:246.
> > >
> > > Here is the program output:
> > >
> > > -----------------------------------------------------------
> > > [leo at senna Osi]$ ./unitTest
> > > Testing OsiRowCut with OsiClpSolverInterface
> > > Coin0001I At line 29 NAME EXAMPLE
> > > Coin0001I At line 30 ROWS
> > > Coin0001I At line 37 COLUMNS
> > > Coin0001I At line 55 RHS
> > > Coin0001I At line 61 RANGES
> > > Coin0001I At line 64 BOUNDS
> > > Coin0001I At line 70 ENDATA
> > > Coin0002I Problem EXAMPLE has 5 rows, 8 columns and 14 elements
> > > Coin0008I EXAMPLE read with 0 errors
> > > Aborted (core dumped)
> > > -----------------------------------------------------------
> > >
> > > and here is the section of Makefile.location I changed:
> > >
> > > -----------------------------------------------------------
> > > CoinDir ?= ${HOME}/devel/fml/COIN
> > >
> > > CoinLibsDefined :=
> > >
> > > CoinLibsDefined += COIN_libCoin
> > > CoinLibsDefined += COIN_libOsi
> > > CoinLibsDefined += COIN_libCgl
> > >
> > > # CoinLibsDefined += COIN_libVol
> > > # CoinLibsDefined += COIN_libOsiVol
> > >
> > > CoinLibsDefined += COIN_libClp
> > > CoinLibsDefined += COIN_libOsiClp
> > >
> > > CoinLibsDefined += COIN_libSbb
> > >
> > > # CoinLibsDefined += COIN_libCpx
> > > # CoinLibsDefined += COIN_libOsiCpx
> > > -----------------------------------------------------------
> > >
> > > Any help would be much appreciated. There was a question earlier about
> > > an AMPL driver. At the end of my current project a simple AMPL driver
> > > should be available.
> > >
> > > Cheers,
> > > Leo.
> > > --
> > > =======================================================================
> > > Leonardo B. Lopes leo at iems.nwu.edu
> > > Ph.D. Candidate (847)491-8470
> > > IEMS - Northwestern University http://www.iems.nwu.edu/~leo
> > >
> > > _______________________________________________
> > > Coin-discuss mailing list
> > > Coin-discuss at www-124.ibm.com
> > > http://www-124.ibm.com/developerworks/oss/mailman/listinfo/coin-discuss
> > >
> > >
> > >
> > > _______________________________________________
> > > Coin-discuss mailing list
> > > Coin-discuss at www-124.ibm.com
> > > http://www-124.ibm.com/developerworks/oss/mailman/listinfo/coin-discuss
> >
> >
> > --
> > =======================================================================
> > Leonardo B. Lopes leo at iems.nwu.edu
> > Ph.D. Candidate (847)491-8470
> > IEMS - Northwestern University http://www.iems.northwestern.edu/~leo
> >
> >
> > _______________________________________________
> > Coin-discuss mailing list
> > Coin-discuss at www-124.ibm.com
> > http://www-124.ibm.com/developerworks/oss/mailman/listinfo/coin-discuss
> >
>
>
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--
Matthew Saltzman
Clemson University Math Sciences
mjs at clemson.edu
http://www.math.clemson.edu/~mjs
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