[petsc-users] HYPRE AMS - Segmentation Violation with discrete gradient

Fri Jan 21 11:05:09 CST 2022

Thank you Matt, I have trimmed down ex10 (a lot) to do as required, and it indeed reproduces the error. 
You may find it attached and it can be reproduced with 
./ex10 -fA Amat -fP Pmat -fG Gmat -ksp_type gmres -pc_type hypre -pc_hypre_type ams

Thank you!

Il 21/01/22 16:35, Matthew Knepley  <knepley at gmail.com> ha scritto: 
> 
> 
> 
> On Fri, Jan 21, 2022 at 9:50 AM Nicolas Alejandro Barnafi <nicolas.barnafi at unimi.it> wrote:
> 
> 
> > Dear community, 
> > 
> > I'm giving the discrete gradient to a PC object (sub PC of a fieldsplit) but HYPRE internally gives a segmentation violation error. The matrix has been adequately set, as I have added it to the program output for inspection. Has this happened to anyone? 
> > 
> 
> 
> Is there a chance of sending us something that we can run? Alternatively, can you run
> 
>  https://gitlab.com/petsc/petsc/-/blob/main/src/ksp/ksp/tutorials/ex10.c
> 
> loading your matrix and giving options to select Hypre? Then we can do the same thing here with your matrix.
> 
>  Thanks,
> 
>  Matt
>  
> 
> > 
> > I have attached the error below together with the discrete gradient, in case you see something I am missing.
> > 
> > The code is currently running in serial, so I don't expect communication/partitioning to be an issue (although it could be in the future). 
> > 
> > Thanks in advance, 
> > Nicolas
> > 
> > 
> > 
> > ------------------------------ PETSc output ------------------------------------
> > 
> > 
> > Mat Object: 1 MPI processes
> >  type: seqaij
> >  -1.00000e+00 1.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 
> >  1.00000e+00 0.00000e+00 -1.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 
> >  -1.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 1.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 
> >  0.00000e+00 -1.00000e+00 0.00000e+00 1.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 
> >  0.00000e+00 1.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 -1.00000e+00 0.00000e+00 0.00000e+00 
> >  0.00000e+00 0.00000e+00 1.00000e+00 -1.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 
> >  0.00000e+00 0.00000e+00 1.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 -1.00000e+00 0.00000e+00 
> >  0.00000e+00 0.00000e+00 0.00000e+00 -1.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 1.00000e+00 
> >  0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 1.00000e+00 -1.00000e+00 0.00000e+00 0.00000e+00 
> >  0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 -1.00000e+00 0.00000e+00 1.00000e+00 0.00000e+00 
> >  0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 1.00000e+00 0.00000e+00 -1.00000e+00 
> >  0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 0.00000e+00 -1.00000e+00 1.00000e+00 
> > [0]PETSC ERROR: ------------------------------------------------------------------------
> > [0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation, probably memory access out of range
> > [0]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
> > [0]PETSC ERROR: or see https://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] jac->setup line 408 /home/ubuntu/petsc/src/ksp/pc/impls/hypre/hypre.c
> > [0]PETSC ERROR: [0] PCSetUp_HYPRE line 223 /home/ubuntu/petsc/src/ksp/pc/impls/hypre/hypre.c
> > [0]PETSC ERROR: [0] PCSetUp line 971 /home/ubuntu/petsc/src/ksp/pc/interface/precon.c
> > [0]PETSC ERROR: [0] KSPSetUp line 319 /home/ubuntu/petsc/src/ksp/ksp/interface/itfunc.c
> > [0]PETSC ERROR: [0] KSPSolve_Private line 615 /home/ubuntu/petsc/src/ksp/ksp/interface/itfunc.c
> > [0]PETSC ERROR: [0] KSPSolve line 884 /home/ubuntu/petsc/src/ksp/ksp/interface/itfunc.c
> > [0]PETSC ERROR: [0] PCApply_FieldSplit line 1241 /home/ubuntu/petsc/src/ksp/pc/impls/fieldsplit/fieldsplit.c
> > [0]PETSC ERROR: [0] PCApply line 426 /home/ubuntu/petsc/src/ksp/pc/interface/precon.c
> > [0]PETSC ERROR: [0] KSP_PCApply line 281 /home/ubuntu/petsc/include/petsc/private/kspimpl.h
> > [0]PETSC ERROR: [0] KSPInitialResidual line 40 /home/ubuntu/petsc/src/ksp/ksp/interface/itres.c
> > [0]PETSC ERROR: [0] KSPSolve_GMRES line 233 /home/ubuntu/petsc/src/ksp/ksp/impls/gmres/gmres.c
> > [0]PETSC ERROR: [0] KSPSolve_Private line 615 /home/ubuntu/petsc/src/ksp/ksp/interface/itfunc.c
> > [0]PETSC ERROR: [0] KSPSolve line 884 /home/ubuntu/petsc/src/ksp/ksp/interface/itfunc.c
> > [0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> > [0]PETSC ERROR: Signal received
> > [0]PETSC ERROR: See https://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting.
> > [0]PETSC ERROR: Petsc Release Version 3.14.6, unknown 
> > [0]PETSC ERROR: Unknown Name on a arch-linux-c-debug named ubuntu-ThinkPad-L14-Gen-1 by ubuntu Fri Jan 21 15:37:45 2022
> > [0]PETSC ERROR: Configure options --with-cc=gcc --with-cxx=g++ --with-fc=gfortran --download-mpich --download-fblaslapack --with-mpi=1 --download-superlu_dist --download-mumps --download-hypre --with-debugging=1 COPTFLAGS="-O3 -march=native -mtune=native" CXXOPTFLAGS="-O3 -march=native -mtune=native" FOPTFLAGS="-O3 -march=native -mtune=native" --download-scalapack --download-hpddm
> > [0]PETSC ERROR: #1 User provided function() line 0 in unknown file
> > [0]PETSC ERROR: Checking the memory for corruption.
> > application called MPI_Abort(MPI_COMM_WORLD, 50176059) - process 0
> > [unset]: write_line error; fd=-1 buf=:cmd=abort exitcode=50176059
> > :
> > system msg for write_line failure : Bad file descriptor
> > 
> 
> 
> 
> -- 
> 
> 
> 
> 
> 
> 
> 
> What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.
> -- Norbert Wiener
> 
> https://www.cse.buffalo.edu/~knepley/(http://www.cse.buffalo.edu/~knepley/ )
> 
> 
> 
> 
> 
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