[petsc-dev] METIS update -> MUMPS crash

[Barry Smith]

On Sep 1, 2013, at 1:27 PM, Matthew Knepley <knepley at gmail.com> wrote:

> On Sun, Sep 1, 2013 at 1:07 PM, Satish Balay <balay at mcs.anl.gov> wrote:
> I see the errors with valgrind - and I don't know the reason.  Perhaps
> we should revert the metis/parmetis upgrade.. [unless someone can debug this..]
> 
> valgrind doesn't give errors with the older metis-5.0.2
> 
> This looks like a MUMPS bug. I guess we should report to them that they are not
> actually compatible with the latest METIS release.

   They may not claim to be?   We should be careful about not casually upgrading our support for one package if other packages we use may not work with that upgrade. How to ensure this in practice I don't know.

   Barry

> 
>     Matt
>  
> Satish
> -----------
> 
> 
> On Sun, 1 Sep 2013, Garth N. Wells wrote:
> 
> > I've been having trouble with MUMPS crashing since METIS was recently updated in
> >
> >     https://bitbucket.org/petsc/petsc/commits/67125ba
> >
> > The problem does not appear for very small problems, but for other
> > problems it does. I can reproduce a crash with ex55
> > (src/ksp/ksp/examples/tutorials/ex55.c):
> >
> >     ./ex55 -ksp_type preonly -pc_type lu -pc_factor_mat_solver_package
> > mumps -ksp_view -ne 128
> >
> > For 'ne' less than about 50 it runs fine but crashes for anything
> > bigger. Changing the LU solver to another package it runs fine.
> > Backtrace below. The message
> >
> >     http://www.mail-archive.com/petsc-users@mcs.anl.gov/msg17695.html
> >
> > looks to be related.
> >
> > Garth
> >
> > ======= Backtrace: =========
> > /lib/x86_64-linux-gnu/libc.so.6(+0x80a46)[0x7f877c6f4a46]
> > /home/garth/local/src/petsc-test/arch-linux2-c-debug/lib/libmetis.so(gk_gkmcorePop+0x81)[0x7f877be7fcae]
> > /home/garth/local/src/petsc-test/arch-linux2-c-debug/lib/libmetis.so(gk_malloc_cleanup+0x3f)[0x7f877be6c418]
> > /home/garth/local/src/petsc-test/arch-linux2-c-debug/lib/libmetis.so(METIS_NodeND+0x6de)[0x7f877be9fa02]
> > /home/garth/local/src/petsc-test/arch-linux2-c-debug/lib/libmetis.so(metis_nodend_+0x48)[0x7f877be94ba8]
> > /home/garth/local/gcc/petsc-test/lib/libpetsc.so(dmumps_195_+0x3720)[0x7f877e67ac40]
> > /home/garth/local/gcc/petsc-test/lib/libpetsc.so(dmumps_26_+0x279c)[0x7f877e553d30]
> > /home/garth/local/gcc/petsc-test/lib/libpetsc.so(dmumps_+0x2022)[0x7f877e638756]
> > /home/garth/local/gcc/petsc-test/lib/libpetsc.so(dmumps_f77_+0x16eb)[0x7f877e51a567]
> > /home/garth/local/gcc/petsc-test/lib/libpetsc.so(dmumps_c+0x12a5)[0x7f877e4f2fed]
> > /home/garth/local/gcc/petsc-test/lib/libpetsc.so(MatLUFactorSymbolic_AIJMUMPS+0xa88)[0x7f877dc00d11]
> > /home/garth/local/gcc/petsc-test/lib/libpetsc.so(MatLUFactorSymbolic+0xb61)[0x7f877db6a82f]
> > /home/garth/local/gcc/petsc-test/lib/libpetsc.soAborted (core dumped)
> >
> 
> 
> 
> -- 
> What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.
> -- Norbert Wiener