[petsc-users] PETSC error: Caught signal number 8 FPE

[Jose E. Roman]

Does it happen also for STSINVERT instead of STCAYLEY?
If you provide us with a code and input data that reproduces the problem we can debug it.
Jose


> El 22/9/2015, a las 5:59, Soumya Mukherjee <soumyamechanics at gmail.com> escribió:
> 
> 
> Hi.
> 
> I am trying to solve an eigenvalue problem. I have a code that works for a particular input file. And, whenever I change the input file, the following error message appears. Any hint for debugging, please?
> 
> PETSC ERROR: ------------------------------------------------------------------------
> 
> [0]PETSC ERROR: Caught signal number 8 FPE: Floating Point Exception,probably divide by zero
> 
> [0]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> 
> [0]PETSC ERROR: or seehttp://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind
> 
> [0]PETSC ERROR: 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] EPSGetConverged line 233 /home/soumya/slepc-3.6.0/src/eps/interface/epssolve.c
> 
> [0]PETSC ERROR: [0] EPSErrorView line 447 /home/soumya/slepc-3.6.0/src/eps/interface/epsview.c
> 
> [0]PETSC ERROR: [0] MatLUFactorSymbolic_SeqAIJ line 295 /home/soumya/petsc-3.6.1/src/mat/impls/aij/seq/aijfact.c
> 
> [0]PETSC ERROR: [0] MatLUFactorSymbolic line 2877 /home/soumya/petsc-3.6.1/src/mat/interface/matrix.c
> 
> [0]PETSC ERROR: [0] PCSetUp_LU line 99 /home/soumya/petsc-3.6.1/src/ksp/pc/impls/factor/lu/lu.c
> 
> [0]PETSC ERROR: [0] PCSetUp line 944 /home/soumya/petsc-3.6.1/src/ksp/pc/interface/precon.c
> 
> [0]PETSC ERROR: [0] KSPSetUp line 247 /home/soumya/petsc-3.6.1/src/ksp/ksp/interface/itfunc.c
> 
> [0]PETSC ERROR: [0] STSetUp_Cayley line 161 /home/soumya/slepc-3.6.0/src/sys/classes/st/impls/cayley/cayley.c
> 
> [0]PETSC ERROR: [0] STSetUp line 273 /home/soumya/slepc-3.6.0/src/sys/classes/st/interface/stsolve.c
> 
> [0]PETSC ERROR: [0] EPSSetUp line 58 /home/soumya/slepc-3.6.0/src/eps/interface/epssetup.c
> 
> [0]PETSC ERROR: [0] EPSSolve line 83 /home/soumya/slepc-3.6.0/src/eps/interface/epssolve.c
> 
> [0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> 
> [0]PETSC ERROR: Signal received
> 
> [0]PETSC ERROR: Seehttp://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting.
> 
> [0]PETSC ERROR: Petsc Release Version 3.6.1, Jul, 22, 2015 
> 
> [0]PETSC ERROR: ./main on a arch-linux2-cxx-debug named soumya-OptiPlex-9010 by soumya Mon Sep 21 21:36:29 2015
> 
> [0]PETSC ERROR: Configure options --with-cc=gcc --with-fc=gfortran --with-cxx=g++ --with-clanguage=cxx --download-fblaslapack --download-mpich --with-scalar-type=complex
> 
> [0]PETSC ERROR: #12 User provided function() line 0 in  unknown file
> 
> application called MPI_Abort(MPI_COMM_WORLD, 59) - process 0
> 
> [unset]: aborting job:
> 
> application called MPI_Abort(MPI_COMM
> 
> Thanks,
>