[petsc-users] issues with sparse direct solvers
Gideon Simpson
gideon.simpson at gmail.com
Tue Aug 25 12:06:53 CDT 2015
Hi Hong,
I ran with that flag because, while solving a SNES with MUMPS, the code would just sit there as though it had died, and never seem to recover. I tried using that flag just to determine where it had stalled, which was at the "ordering based on METIS” bit.
-gideon
> On Aug 25, 2015, at 12:24 PM, Hong <hzhang at mcs.anl.gov> wrote:
>
> Gideon:
> -mat_mumps_icntl_4 <0>: ICNTL(4): level of printing (0 to 4) (None)
> This is for algorithmic diagnosis, not for regular runs. Use default '0' for it.
>
> Hong
>
> On Tue, Aug 25, 2015 at 9:06 AM, Gideon Simpson <gideon.simpson at gmail.com <mailto:gideon.simpson at gmail.com>> wrote:
> Regarding the MUMPS issue, I’m not sure if this is useful, but when I run with the mumps flags -mat_mumps_icntl_4 4, to see the progress, it hangs at this point:
>
>
> ... Structural symmetry (in percent)= 75
> Density: NBdense, Average, Median = 2 9 7
> Ordering based on METIS
>
> -gideon
>
> > On Aug 22, 2015, at 5:12 PM, Barry Smith <bsmith at mcs.anl.gov <mailto:bsmith at mcs.anl.gov>> wrote:
> >
> >
> >> On Aug 22, 2015, at 4:04 PM, Gideon Simpson <gideon.simpson at gmail.com <mailto:gideon.simpson at gmail.com>> wrote:
> >>
> >> I’m having issues with both SuperLU dist and MUMPS, as compiled by PETsc, in the following sense:
> >>
> >> 1. For large enough systems, which seems to vary depending on which computer I’m on, MUMPS seems to just die and never start, when it’s used as the linear solver within a SNES. There’s no error message, it just sits there and doesn’t do anything.
> >
> > You will need to use a debugger to figure out where it is "hanging"; we haven't heard reports about this.
> >>
> >> 2. When running with SuperLU dist, I got the following error, with no further information:
> >
> > The last release of SuperLU_DIST had some pretty nasty bugs, memory corruption that caused crashes etc. We think they are now fixed if you use the maint branch of the PETSc repository and --download-superlu_dist If you stick with the PETSc release and SuperLU_Dist you are using you will keep seeing these crashes
> >
> > Barry
> >
> >
> >>
> >> [3]PETSC ERROR: ------------------------------------------------------------------------
> >> [3]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation, probably memory access out of range
> >> [3]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> >> [3]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind <http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind>
> >> [3]PETSC ERROR: or try http://valgrind.org <http://valgrind.org/> on GNU/linux and Apple Mac OS X to find memory corruption errors
> >> [3]PETSC ERROR: likely location of problem given in stack below
> >> [3]PETSC ERROR: --------------------- Stack Frames ------------------------------------
> >> [3]PETSC ERROR: Note: The EXACT line numbers in the stack are not available,
> >> [3]PETSC ERROR: INSTEAD the line number of the start of the function
> >> [3]PETSC ERROR: is given.
> >> [3]PETSC ERROR: [3] SuperLU_DIST:pdgssvx line 161 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [3]PETSC ERROR: [3] MatSolve_SuperLU_DIST line 121 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [3]PETSC ERROR: [3] MatSolve line 3104 /home/simpson/software/petsc-3.5.4/src/mat/interface/matrix.c
> >> [3]PETSC ERROR: [3] PCApply_LU line 194 /home/simpson/software/petsc-3.5.4/src/ksp/pc/impls/factor/lu/lu.c
> >> [3]PETSC ERROR: [3] KSP_PCApplyBAorAB line 258 /home/simpson/software/petsc-3.5.4/include/petsc-private/kspimpl.h
> >> [3]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> >> [3]PETSC ERROR: Signal received
> >> [3]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html <http://www.mcs.anl.gov/petsc/documentation/faq.html> for trouble shooting.
> >> [3]PETSC ERROR: Petsc Release Version 3.5.4, May, 23, 2015
> >> [3]PETSC ERROR: ./blowup_batch2 on a arch-linux2-c-debug named proteusi01 by simpson Sat Aug 22 17:01:41 2015
> >> [3]PETSC ERROR: Configure options --with-mpi-dir=/mnt/HA/opt/openmpi/intel/64/1.8.1-mlnx-ofed --with-blas-lib=/mnt/HA/opt/blas/gcc/64/20110419/libblas.a --with-lapack-lib=/liblapack.a --download-suitesparse=yes --download-superlu=yes --download-superlu_dist=yes --download-mumps=yes --download-metis=yes --download-parmetis=yes --download-scalapack=yes
> >> [3]PETSC ERROR: #1 User provided function() line 0 in unknown file
> >> --------------------------------------------------------------------------
> >> MPI_ABORT was invoked on rank 3 in communicator MPI_COMM_WORLD
> >> with errorcode 59.
> >>
> >> NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
> >> You may or may not see output from other processes, depending on
> >> exactly when Open MPI kills them.
> >> --------------------------------------------------------------------------
> >> [proteusi01:14037] 1 more process has sent help message help-mpi-api.txt / mpi-abort
> >> [proteusi01:14037] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
> >> [6]PETSC ERROR: ------------------------------------------------------------------------
> >> [6]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the batch system) has told this process to end
> >> [6]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> >> [6]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind <http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind>
> >> [6]PETSC ERROR: or try http://valgrind.org <http://valgrind.org/> on GNU/linux and Apple Mac OS X to find memory corruption errors
> >> [6]PETSC ERROR: likely location of problem given in stack below
> >> [6]PETSC ERROR: --------------------- Stack Frames ------------------------------------
> >> [6]PETSC ERROR: Note: The EXACT line numbers in the stack are not available,
> >> [6]PETSC ERROR: INSTEAD the line number of the start of the function
> >> [6]PETSC ERROR: is given.
> >> [6]PETSC ERROR: [6] SuperLU_DIST:pdgssvx line 161 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [6]PETSC ERROR: [6] MatSolve_SuperLU_DIST line 121 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [6]PETSC ERROR: [6] MatSolve line 3104 /home/simpson/software/petsc-3.5.4/src/mat/interface/matrix.c
> >> [6]PETSC ERROR: [6] PCApply_LU line 194 /home/simpson/software/petsc-3.5.4/src/ksp/pc/impls/factor/lu/lu.c
> >> [6]PETSC ERROR: [6] KSP_PCApplyBAorAB line 258 /home/simpson/software/petsc-3.5.4/include/petsc-private/kspimpl.h
> >> [6]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> >> [6]PETSC ERROR: Signal received
> >> [6]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html <http://www.mcs.anl.gov/petsc/documentation/faq.html> for trouble shooting.
> >> [6]PETSC ERROR: Petsc Release Version 3.5.4, May, 23, 2015
> >> [6]PETSC ERROR: ./blowup_batch2 on a arch-linux2-c-debug named proteusi01 by simpson Sat Aug 22 17:01:41 2015
> >> [6]PETSC ERROR: Configure options --with-mpi-dir=/mnt/HA/opt/openmpi/intel/64/1.8.1-mlnx-ofed --with-blas-lib=/mnt/HA/opt/blas/gcc/64/20110419/libblas.a --with-lapack-lib=/liblapack.a --download-suitesparse=yes --download-superlu=yes --download-superlu_dist=yes --download-mumps=yes --download-metis=yes --download-parmetis=yes --download-scalapack=yes
> >> [6]PETSC ERROR: #1 User provided function() line 0 in unknown file
> >> [7]PETSC ERROR: ------------------------------------------------------------------------
> >> [7]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the batch system) has told this process to end
> >> [7]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> >> [7]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind <http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind>
> >> [7]PETSC ERROR: or try http://valgrind.org <http://valgrind.org/> on GNU/linux and Apple Mac OS X to find memory corruption errors
> >> [7]PETSC ERROR: likely location of problem given in stack below
> >> [7]PETSC ERROR: --------------------- Stack Frames ------------------------------------
> >> [7]PETSC ERROR: Note: The EXACT line numbers in the stack are not available,
> >> [7]PETSC ERROR: INSTEAD the line number of the start of the function
> >> [7]PETSC ERROR: is given.
> >> [7]PETSC ERROR: [7] SuperLU_DIST:pdgssvx line 161 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [7]PETSC ERROR: [7] MatSolve_SuperLU_DIST line 121 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [7]PETSC ERROR: [7] MatSolve line 3104 /home/simpson/software/petsc-3.5.4/src/mat/interface/matrix.c
> >> [7]PETSC ERROR: [7] PCApply_LU line 194 /home/simpson/software/petsc-3.5.4/src/ksp/pc/impls/factor/lu/lu.c
> >> [7]PETSC ERROR: [7] KSP_PCApplyBAorAB line 258 /home/simpson/software/petsc-3.5.4/include/petsc-private/kspimpl.h
> >> [7]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> >> [7]PETSC ERROR: Signal received
> >> [7]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html <http://www.mcs.anl.gov/petsc/documentation/faq.html> for trouble shooting.
> >> [7]PETSC ERROR: Petsc Release Version 3.5.4, May, 23, 2015
> >> [7]PETSC ERROR: ./blowup_batch2 on a arch-linux2-c-debug named proteusi01 by simpson Sat Aug 22 17:01:41 2015
> >> [7]PETSC ERROR: Configure options --with-mpi-dir=/mnt/HA/opt/openmpi/intel/64/1.8.1-mlnx-ofed --with-blas-lib=/mnt/HA/opt/blas/gcc/64/20110419/libblas.a --with-lapack-lib=/liblapack.a --download-suitesparse=yes --download-superlu=yes --download-superlu_dist=yes --download-mumps=yes --download-metis=yes --download-parmetis=yes --download-scalapack=yes
> >> [7]PETSC ERROR: #1 User provided function() line 0 in unknown file
> >> [0]PETSC ERROR: ------------------------------------------------------------------------
> >> [0]PETSC ERROR: Caught signal number 15 Terminate: Some 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 <http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind>
> >> [0]PETSC ERROR: or try http://valgrind.org <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] SuperLU_DIST:pdgssvx line 161 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [0]PETSC ERROR: [0] MatSolve_SuperLU_DIST line 121 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [0]PETSC ERROR: [0] MatSolve line 3104 /home/simpson/software/petsc-3.5.4/src/mat/interface/matrix.c
> >> [0]PETSC ERROR: [0] PCApply_LU line 194 /home/simpson/software/petsc-3.5.4/src/ksp/pc/impls/factor/lu/lu.c
> >> [0]PETSC ERROR: [0] KSP_PCApplyBAorAB line 258 /home/simpson/software/petsc-3.5.4/include/petsc-private/kspimpl.h
> >> [0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> >> [0]PETSC ERROR: Signal received
> >> [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html <http://www.mcs.anl.gov/petsc/documentation/faq.html> for trouble shooting.
> >> [0]PETSC ERROR: Petsc Release Version 3.5.4, May, 23, 2015
> >> [0]PETSC ERROR: ./blowup_batch2 on a arch-linux2-c-debug named proteusi01 by simpson Sat Aug 22 17:01:41 2015
> >> [0]PETSC ERROR: Configure options --with-mpi-dir=/mnt/HA/opt/openmpi/intel/64/1.8.1-mlnx-ofed --with-blas-lib=/mnt/HA/opt/blas/gcc/64/20110419/libblas.a --with-lapack-lib=/liblapack.a --download-suitesparse=yes --download-superlu=yes --download-superlu_dist=yes --download-mumps=yes --download-metis=yes --download-parmetis=yes --download-scalapack=yes
> >> [0]PETSC ERROR: #1 User provided function() line 0 in unknown file
> >> [1]PETSC ERROR: ------------------------------------------------------------------------
> >> [1]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the batch system) has told this process to end
> >> [1]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> >> [1]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind <http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind>
> >> [1]PETSC ERROR: or try http://valgrind.org <http://valgrind.org/> on GNU/linux and Apple Mac OS X to find memory corruption errors
> >> [1]PETSC ERROR: likely location of problem given in stack below
> >> [1]PETSC ERROR: --------------------- Stack Frames ------------------------------------
> >> [1]PETSC ERROR: Note: The EXACT line numbers in the stack are not available,
> >> [1]PETSC ERROR: INSTEAD the line number of the start of the function
> >> [1]PETSC ERROR: is given.
> >> [1]PETSC ERROR: [1] SuperLU_DIST:pdgssvx line 161 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [1]PETSC ERROR: [1] MatSolve_SuperLU_DIST line 121 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [1]PETSC ERROR: [1] MatSolve line 3104 /home/simpson/software/petsc-3.5.4/src/mat/interface/matrix.c
> >> [1]PETSC ERROR: [1] PCApply_LU line 194 /home/simpson/software/petsc-3.5.4/src/ksp/pc/impls/factor/lu/lu.c
> >> [1]PETSC ERROR: [1] KSP_PCApplyBAorAB line 258 /home/simpson/software/petsc-3.5.4/include/petsc-private/kspimpl.h
> >> [1]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> >> [1]PETSC ERROR: Signal received
> >> [1]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html <http://www.mcs.anl.gov/petsc/documentation/faq.html> for trouble shooting.
> >> [1]PETSC ERROR: Petsc Release Version 3.5.4, May, 23, 2015
> >> [1]PETSC ERROR: ./blowup_batch2 on a arch-linux2-c-debug named proteusi01 by simpson Sat Aug 22 17:01:41 2015
> >> [1]PETSC ERROR: Configure options --with-mpi-dir=/mnt/HA/opt/openmpi/intel/64/1.8.1-mlnx-ofed --with-blas-lib=/mnt/HA/opt/blas/gcc/64/20110419/libblas.a --with-lapack-lib=/liblapack.a --download-suitesparse=yes --download-superlu=yes --download-superlu_dist=yes --download-mumps=yes --download-metis=yes --download-parmetis=yes --download-scalapack=yes
> >> [1]PETSC ERROR: #1 User provided function() line 0 in unknown file
> >> [2]PETSC ERROR: ------------------------------------------------------------------------
> >> [2]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the batch system) has told this process to end
> >> [2]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> >> [2]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind <http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind>
> >> [2]PETSC ERROR: or try http://valgrind.org <http://valgrind.org/> on GNU/linux and Apple Mac OS X to find memory corruption errors
> >> [2]PETSC ERROR: likely location of problem given in stack below
> >> [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] SuperLU_DIST:pdgssvx line 161 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [2]PETSC ERROR: [2] MatSolve_SuperLU_DIST line 121 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [2]PETSC ERROR: [2] MatSolve line 3104 /home/simpson/software/petsc-3.5.4/src/mat/interface/matrix.c
> >> [2]PETSC ERROR: [2] PCApply_LU line 194 /home/simpson/software/petsc-3.5.4/src/ksp/pc/impls/factor/lu/lu.c
> >> [2]PETSC ERROR: [2] KSP_PCApplyBAorAB line 258 /home/simpson/software/petsc-3.5.4/include/petsc-private/kspimpl.h
> >> [2]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> >> [2]PETSC ERROR: Signal received
> >> [2]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html <http://www.mcs.anl.gov/petsc/documentation/faq.html> for trouble shooting.
> >> [2]PETSC ERROR: Petsc Release Version 3.5.4, May, 23, 2015
> >> [2]PETSC ERROR: ./blowup_batch2 on a arch-linux2-c-debug named proteusi01 by simpson Sat Aug 22 17:01:41 2015
> >> [2]PETSC ERROR: Configure options --with-mpi-dir=/mnt/HA/opt/openmpi/intel/64/1.8.1-mlnx-ofed --with-blas-lib=/mnt/HA/opt/blas/gcc/64/20110419/libblas.a --with-lapack-lib=/liblapack.a --download-suitesparse=yes --download-superlu=yes --download-superlu_dist=yes --download-mumps=yes --download-metis=yes --download-parmetis=yes --download-scalapack=yes
> >> [2]PETSC ERROR: #1 User provided function() line 0 in unknown file
> >> [4]PETSC ERROR: ------------------------------------------------------------------------
> >> [4]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the batch system) has told this process to end
> >> [4]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> >> [4]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind <http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind>
> >> [4]PETSC ERROR: or try http://valgrind.org <http://valgrind.org/> on GNU/linux and Apple Mac OS X to find memory corruption errors
> >> [4]PETSC ERROR: likely location of problem given in stack below
> >> [4]PETSC ERROR: --------------------- Stack Frames ------------------------------------
> >> [4]PETSC ERROR: Note: The EXACT line numbers in the stack are not available,
> >> [4]PETSC ERROR: INSTEAD the line number of the start of the function
> >> [4]PETSC ERROR: is given.
> >> [4]PETSC ERROR: [4] SuperLU_DIST:pdgssvx line 161 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [4]PETSC ERROR: [4] MatSolve_SuperLU_DIST line 121 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [4]PETSC ERROR: [4] MatSolve line 3104 /home/simpson/software/petsc-3.5.4/src/mat/interface/matrix.c
> >> [4]PETSC ERROR: [4] PCApply_LU line 194 /home/simpson/software/petsc-3.5.4/src/ksp/pc/impls/factor/lu/lu.c
> >> [4]PETSC ERROR: [4] KSP_PCApplyBAorAB line 258 /home/simpson/software/petsc-3.5.4/include/petsc-private/kspimpl.h
> >> [4]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> >> [4]PETSC ERROR: Signal received
> >> [4]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html <http://www.mcs.anl.gov/petsc/documentation/faq.html> for trouble shooting.
> >> [4]PETSC ERROR: Petsc Release Version 3.5.4, May, 23, 2015
> >> [4]PETSC ERROR: ./blowup_batch2 on a arch-linux2-c-debug named proteusi01 by simpson Sat Aug 22 17:01:41 2015
> >> [4]PETSC ERROR: Configure options --with-mpi-dir=/mnt/HA/opt/openmpi/intel/64/1.8.1-mlnx-ofed --with-blas-lib=/mnt/HA/opt/blas/gcc/64/20110419/libblas.a --with-lapack-lib=/liblapack.a --download-suitesparse=yes --download-superlu=yes --download-superlu_dist=yes --download-mumps=yes --download-metis=yes --download-parmetis=yes --download-scalapack=yes
> >> [4]PETSC ERROR: #1 User provided function() line 0 in unknown file
> >> [5]PETSC ERROR: ------------------------------------------------------------------------
> >> [5]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the batch system) has told this process to end
> >> [5]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> >> [5]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind <http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind>
> >> [5]PETSC ERROR: or try http://valgrind.org <http://valgrind.org/> on GNU/linux and Apple Mac OS X to find memory corruption errors
> >> [5]PETSC ERROR: likely location of problem given in stack below
> >> [5]PETSC ERROR: --------------------- Stack Frames ------------------------------------
> >> [5]PETSC ERROR: Note: The EXACT line numbers in the stack are not available,
> >> [5]PETSC ERROR: INSTEAD the line number of the start of the function
> >> [5]PETSC ERROR: is given.
> >> [5]PETSC ERROR: [5] SuperLU_DIST:pdgssvx line 161 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [5]PETSC ERROR: [5] MatSolve_SuperLU_DIST line 121 /home/simpson/software/petsc-3.5.4/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> >> [5]PETSC ERROR: [5] MatSolve line 3104 /home/simpson/software/petsc-3.5.4/src/mat/interface/matrix.c
> >> [5]PETSC ERROR: [5] PCApply_LU line 194 /home/simpson/software/petsc-3.5.4/src/ksp/pc/impls/factor/lu/lu.c
> >> [5]PETSC ERROR: [5] KSP_PCApplyBAorAB line 258 /home/simpson/software/petsc-3.5.4/include/petsc-private/kspimpl.h
> >> [5]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> >> [5]PETSC ERROR: Signal received
> >> [5]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html <http://www.mcs.anl.gov/petsc/documentation/faq.html> for trouble shooting.
> >> [5]PETSC ERROR: Petsc Release Version 3.5.4, May, 23, 2015
> >> [5]PETSC ERROR: ./blowup_batch2 on a arch-linux2-c-debug named proteusi01 by simpson Sat Aug 22 17:01:41 2015
> >> [5]PETSC ERROR: Configure options --with-mpi-dir=/mnt/HA/opt/openmpi/intel/64/1.8.1-mlnx-ofed --with-blas-lib=/mnt/HA/opt/blas/gcc/64/20110419/libblas.a --with-lapack-lib=/liblapack.a --download-suitesparse=yes --download-superlu=yes --download-superlu_dist=yes --download-mumps=yes --download-metis=yes --download-parmetis=yes --download-scalapack=yes
> >> [5]PETSC ERROR: #1 User provided function() line 0 in unknown file
> >>
> >> -gideon
> >>
> >>
> >
>
>
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