[petsc-users] debugger fails

[Dominik Szczerba]

(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
>>
>
>