[petsc-users] superlu_dist+parmetis

[Smith, Barry F.]

  Given the message the likely cause is SuperLU_DIST got a zero pivot on process 6. Presumably the colperm parmetis is one induced the zero pivot.

  Have you tried other superlu_dist options to find others that do not cause this?

   Barry


> On Feb 14, 2019, at 6:44 PM, Marius Buerkle via petsc-users <petsc-users at mcs.anl.gov> wrote:
> 
> Dear PETSc team,
> 
> I try to run superlu_dist+parmetis with " -mat_superlu_dist_colperm parmetis -mat_superlu_dist_parsymbfact" which gives me the following error
> 
> [6]PETSC ERROR: Caught signal number 8 FPE: Floating Point Exception,probably divide by zero
> [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
> [6]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac OS X to find memory corruption errors
> [651]PETSC ERROR: #1 User provided function() line 0 in  unknown file
> [653]PETSC ERROR: ------------------------------------------------------------------------
> [653]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the batch system) has told this process to end
> [653]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> [653]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind
> [653]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac OS X to find memory corruption errors
> [653]PETSC ERROR: likely location of problem given in stack below
> [653]PETSC ERROR: ---------------------  Stack Frames ------------------------------------
> [653]PETSC ERROR: Note: The EXACT line numbers in the stack are not available,
> [653]PETSC ERROR:       INSTEAD the line number of the start of the function
> [653]PETSC ERROR:       is given.
> [653]PETSC ERROR: [653] SuperLU_DIST:pzgssvx line 465 /home/cdfmat_marius/prog/petsc/git/petsc/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> [653]PETSC ERROR: [653] MatLUFactorNumeric_SuperLU_DIST line 314 /home/cdfmat_marius/prog/petsc/git/petsc/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
> [653]PETSC ERROR: [653] MatLUFactorNumeric line 3124 /home/cdfmat_marius/prog/petsc/git/petsc/src/mat/interface/matrix.c
> [653]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> [653]PETSC ERROR: Signal received
> [653]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting.
> [653]PETSC ERROR: Petsc Development GIT revision: v3.10.3-980-g66b342c  GIT Date: 2018-12-26 13:49:21 -0600
> [653]PETSC ERROR: /home/cdfmat_marius/prog/transomat_latest_openmpi4.0/transomat on a  named h023 by cdfmat_marius Wed Feb 13 23:58:21 2019
> 
> Any idea?
> 
> best,
> marius