[petsc-users] MUMPS failure

[Chris Hewson]

Hi Matt,

No, we are running it without debugging in prod and then running debug I
can't reproduce the error, from stderr we get:

[1]PETSC ERROR:
------------------------------------------------------------------------
[1]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation,
probably memory access out of range
[1]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
[1]PETSC ERROR: or see
https://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind
[1]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac OS X
to find memory corruption errors
[1]PETSC ERROR: configure using --with-debugging=yes, recompile, link, and
run
[1]PETSC ERROR: to get more information on the crash.
[1]PETSC ERROR: Run with -malloc_debug to check if memory corruption is
causing the crash.
application called MPI_Abort(MPI_COMM_WORLD, 50176059) - process 1

*Chris Hewson*
Senior Reservoir Simulation Engineer
ResFrac
+1.587.575.9792


On Mon, Mar 22, 2021 at 12:04 PM Matthew Knepley <knepley at gmail.com> wrote:

> On Mon, Mar 22, 2021 at 1:56 PM Chris Hewson <chris at resfrac.com> wrote:
>
>> Hi All,
>>
>> I have been having a problem with MUMPS randomly crashing in our program
>> and causing the entire program to crash. I am compiling in -O2 optimization
>> mode and using --download-mumps etc. to compile PETSc. If I rerun the
>> program, 95%+ of the time I can't reproduce the error. It seems to be a
>> similar issue to this thread:
>>
>> https://lists.mcs.anl.gov/pipermail/petsc-users/2018-October/036372.html
>>
>> Similar to the resolution there I am going to try and increase icntl_14
>> and see if that resolves the issue. Any other thoughts on this?
>>
>
> When it fails, do you get a stack trace?
>
>  Thanks,
>
>     Matt
>
>
>> Thanks,
>>
>> *Chris Hewson*
>> Senior Reservoir Simulation Engineer
>> ResFrac
>> +1.587.575.9792
>>
>
>
> --
> 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
>
> https://www.cse.buffalo.edu/~knepley/
> <http://www.cse.buffalo.edu/~knepley/>
>
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