[petsc-users] debugger fails

[Dominik Szczerba]

What do you mean by "the second break"?

Dominik

On Fri, Aug 19, 2011 at 6:47 PM, Aron Ahmadia <aron.ahmadia at kaust.edu.sa> wrote:
> You want to do a 'where' on the second break, when your program is raising
> an abort signal...
> A
>
> On Fri, Aug 19, 2011 at 6:57 PM, Dominik Szczerba <dominik at itis.ethz.ch>
> wrote:
>>
>> (gdb) where
>> #0  0x00007fae5b941590 in __nanosleep_nocancel () at
>> ../sysdeps/unix/syscall-template.S:82
>> #1  0x00007fae5b94143c in __sleep (seconds=0) at
>> ../sysdeps/unix/sysv/linux/sleep.c:138
>> #2  0x000000000056cc48 in PetscSleep (s=10) at psleep.c:56
>> #3  0x0000000000838887 in PetscAttachDebugger () at adebug.c:410
>> #4  0x00000000005590a7 in PetscOptionsCheckInitial_Private () at
>> init.c:392
>> #5  0x000000000055e40e in PetscInitialize (argc=0x7ffff403debc,
>> args=0x7ffff403deb0, file=0x0,
>>    help=0x0) at pinit.c:639
>> #6  0x0000000000524a16 in PetscSolver::InitializePetsc
>> (argc=0x7ffff403debc, argv=0x7ffff403deb0)
>>    at /home/dsz/src/framework/trunk/solve/PetscSolver.cxx:124
>> #7  0x00000000004c404f in main (argc=4, argv=0x7ffff403e4c8)
>>    at /home/dsz/src/framework/trunk/solve/cd3t10mpi_main.cxx:526
>> (gdb)
>>
>> PetscSolver.cxx:124:
>>
>>        ierr = PetscInitialize(argc, argv, (char *)0, (char *)0);
>> CHKERRQ(ierr);
>>
>> Hmmm, not very helpful.....
>>
>> The app runs on one cpu, but silently crashes on two.
>>
>> Any hints are very appreciated.
>>
>> Dominik
>>
>>
>>
>> On Fri, Aug 19, 2011 at 5:49 PM, Satish Balay <balay at mcs.anl.gov> wrote:
>> > On Fri, 19 Aug 2011, Dominik Szczerba wrote:
>> >
>> >> Hi,
>> >>
>> >> I am starting my app in the debugger as:
>> >>
>> >> mpiexec -np 2 sm3t4mpi run.xml -start_in_debugger -display :0.0
>> >>
>> >> In the console I get:
>> >>
>> >> [1]PETSC ERROR: MPI error 14
>> >>
>> >> in the two open terminals with gdb I get:
>> >>
>> >> 0x00007f2ecdd15590 in __nanosleep_nocancel () at
>> >> ../sysdeps/unix/syscall-template.S:82
>> >> 82      ../sysdeps/unix/syscall-template.S: No such file or directory.
>> >>         in ../sysdeps/unix/syscall-template.S
>> >> (gdb)
>> >>
>> >>
>> >> I type 'c' nonetheless and see:
>> >>
>> >> (gdb) c
>> >> Continuing.
>> >> [New Thread 0x7f268e975700 (LWP 22388)]
>> >>
>> >> Program received signal SIGABRT, Aborted.
>> >> 0x00007f268f421d05 in raise (sig=6) at
>> >> ../nptl/sysdeps/unix/sysv/linux/raise.c:64
>> >> 64      ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or
>> >> directory.
>> >>         in ../nptl/sysdeps/unix/sysv/linux/raise.c
>> >>
>> >>
>> >>
>> >> How do I go on debugging?
>> >
>> > what do you get for:
>> >
>> > (gdb) where
>> >
>> > Satish
>> >
>> >
>> >>
>> >> Many thanks for any hints,
>> >>
>> >> Dominik
>> >>
>> >
>> >
>
>