Hi!

I am running with 16 processors.

I will check how much memory is being used, but I think it was something
related to the ILU implementations of PETSC. Now I am using SuperLU and it
seems that I am not having this error anymore. The new error is:

0]PETSC ERROR: Caught signal number 15 Terminate: Somet process (or the
batch system) has told this process to end
[0]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
[0]PETSC ERROR: or see
http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind[0]PETSCERROR:
or try http://valgrind.org on GNU/linux and Apple Mac OS X to find memory
corruption errors
[0]PETSC ERROR: likely location of problem given in stack below
[0]PETSC ERROR: ---------------------  Stack Frames
------------------------------------
[0]PETSC ERROR: Note: The EXACT line numbers in the stack are not available,
[0]PETSC ERROR:       INSTEAD the line number of the start of the function
[0]PETSC ERROR:       is given.
[0]PETSC ERROR: [0] MatGetSubMatrices_MPIAIJ_Local line 838
/home/users/dmva/petsc-3.3-p3/src/mat/impls/aij/mpi/mpiov.c
[0]PETSC ERROR: [0] MatGetSubMatrices_MPIAIJ line 731
/home/users/dmva/petsc-3.3-p3/src/mat/impls/aij/mpi/mpiov.c
[0]PETSC ERROR: [0] MatGetSubMatrices line 6372
/home/users/dmva/petsc-3.3-p3/src/mat/interface/matrix.c
[0]PETSC ERROR: [0] PCSetUp_ASM line 191
/home/users/dmva/petsc-3.3-p3/src/ksp/pc/impls/asm/asm.c
[0]PETSC ERROR: [0] PCSetUp line 810
/home/users/dmva/petsc-3.3-p3/src/ksp/pc/interface/precon.c
[0]PETSC ERROR: [0] KSPSetUp line 182
/home/users/dmva/petsc-3.3-p3/src/ksp/ksp/interface/itfunc.c
[0]PETSC ERROR: [0] KSPSolve line 351
/home/users/dmva/petsc-3.3-p3/src/ksp/ksp/interface/itfunc.c

BR,

Daniel.


On Sun, Nov 11, 2012 at 1:37 PM, Kirk, Benjamin (JSC-EG311) <
[email protected]> wrote:

> The most likely scenario is that you are running out of memory, and this
> is the first section of code to trigger it.
>
> But to diagnose that we need more information -
>
> How many processors?
>
> How much ram per processor?
>
> You might try running 'top' in another window while you run this example,
> what is the percentage memory use?
>
> -Ben
>
> On Nov 11, 2012, at 3:10 AM, "Daniel Vasconcelos" <
> [email protected]> wrote:
>
> > Hi,
> >
> > I have been trying to run a case that requires more than 500 thousands
> > elements but I am receiving the following error in PETSc when this number
> > is reached:
> >
> > 2]PETSC ERROR: ---------------------  Stack Frames
> > ------------------------------------
> > [2]PETSC ERROR: Note: The EXACT line numbers in the stack are not
> available,
> > [2]PETSC ERROR:       INSTEAD the line number of the start of the
> function
> > [2]PETSC ERROR:       is given.
> > [2]PETSC ERROR: [2] MatILUFactorSymbolic_SeqAIJ line 1728
> > /home/users/dmva/petsc-3.3-p3/src/mat/impls/aij/seq/aijfact.c
> > [2]PETSC ERROR: [2] MatILUFactorSymbolic line 6111
> > /home/users/dmva/petsc-3.3-p3/src/mat/interface/matrix.c
> > [2]PETSC ERROR: [2] PCSetUp_ILU line 173
> > /home/users/dmva/petsc-3.3-p3/src/ksp/pc/impls/factor/ilu/ilu.c
> > [2]PETSC ERROR: [2] PCSetUp line 810
> > /home/users/dmva/petsc-3.3-p3/src/ksp/pc/interface/precon.c
> > [2]PETSC ERROR: [2] KSPSetUp line 182
> > /home/users/dmva/petsc-3.3-p3/src/ksp/ksp/interface/itfunc.c
> > [2]PETSC ERROR: [2] PCSetUpOnBlocks_ASM line 416
> > /home/users/dmva/petsc-3.3-p3/src/ksp/pc/impls/asm/asm.c
> > [2]PETSC ERROR: [2] PCSetUpOnBlocks line 861
> > /home/users/dmva/petsc-3.3-p3/src/ksp/pc/interface/precon.c
> > [2]PETSC ERROR: [2] KSPSetUpOnBlocks line 151
> > /home/users/dmva/petsc-3.3-p3/src/ksp/ksp/interface/itfunc.c
> > [2]PETSC ERROR: [2] KSPSolve line 351
> > /home/users/dmva/petsc-3.3-p3/src/ksp/ksp/interface/itfunc.c
> >
> > Could be that due a storage problem with libMesh or a problem of my PETSc
> > configuration?
> >
> > I configures PETSc with the following options:
> >
> > --with-mpi-compilers=1 --with-shared-libraries=1
> > --with-blas-lapack-dir=/sw/shared/gotoblas2/1.13 --with-superlu=1
> > --download-superlu=1 --with-umfpack=1 --download-umfpack=1
> --with-spooles=1
> > --download-spooles=1 --with-cmake=1 --download-cmake=1 --with-metis=1
> > --download-metis=1 --with-parmetis=1 --download-parmetis=1 --with-hypre=1
> > --download-hypre=1
> >
> > BR,
> >
> > Daniel.
> >
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