Re: out of memory error

[Gideon Simpson <grs2103@xxxxxxxxxxxx>]

Matrix Object:
  type=seqaij, rows=218898, cols=218898
  total: nonzeros=20389756, allocated nonzeros=20389756
    not using I-node routines

On Mar 6, 2008, at 2:36 AM, li pan wrote:

> hi Gideon,
> can I ask you how big is the nonzero allocation of
> your sparse matrix?
>
> pan
>
>
> --- Gideon Simpson <grs2103@xxxxxxxxxxxx> wrote:
>
> > I'm getting the following error with some code,
> > running on a serial
> > machine with, i think, 3 gigs of memory.  Is there
> > anyway to
> > circumvent this error by being clever, or do I
> > really need to go to a
> > distributed memory machine?
> >
> > -gideon
> >
> > Out of memory trying to allocate 112032952 bytes
> > [0]PETSC ERROR:
> ------------------------------------------------------------------------
> > [0]PETSC ERROR: Caught signal number 10 BUS: Bus
> > Error, possibly
> > illegal memory access
> > [0]PETSC ERROR: Try option -start_in_debugger or -
> > on_error_attach_debugger
> > [0]PETSC ERROR: or see
> http://www.mcs.anl.gov/petsc/petsc-as/documentation/troubleshooting.html#Signal
> > [0]PETSC ERROR: or try http://valgrind.org on linux
> > or man libgmalloc
> > on Apple 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] PCSetUp_HYPRE line 95
> > src/ksp/pc/impls/hypre/hypre.c
> > [0]PETSC ERROR: [0] PCSetUp line 764
> > src/ksp/pc/interface/precon.c
> > [0]PETSC ERROR: [0] KSPSetUp line 183
> > src/ksp/ksp/interface/itfunc.c
> > [0]PETSC ERROR: [0] KSPSolve line 305
> > src/ksp/ksp/interface/itfunc.c
> > [0]PETSC ERROR: --------------------- Error Message
> >
> > ------------------------------------
> > [0]PETSC ERROR: Signal received!
> > [0]PETSC ERROR:
> ------------------------------------------------------------------------
> > [0]PETSC ERROR: Petsc Release Version 2.3.3, Patch
> > 8, Fri Nov 16
> > 17:03:40 CST 2007 HG revision:
> > 414581156e67e55c761739b0deb119f7590d0f4b
> > [0]PETSC ERROR: See docs/changes/index.html for
> > recent updates.
> > [0]PETSC ERROR: See docs/faq.html for hints about
> > trouble shooting.
> > [0]PETSC ERROR: See docs/index.html for manual
> > pages.
> > [0]PETSC ERROR:
> ------------------------------------------------------------------------
> > [0]PETSC ERROR: ./bulk3d on a darwin8.1 named
> > valkyrie.appmath.columbia.edu by gideon Wed Mar  5
> > 15:53:26 2008
> > [0]PETSC ERROR: Libraries linked from
> > /Users/gideon/software/
> > petsc-2.3.3-p8/lib/darwin8.11.1-cxx-debug
> > [0]PETSC ERROR: Configure run at Thu Jan 10 11:00:45
> > 2008
> > [0]PETSC ERROR: Configure options
> > --with-clanguage=cxx --with-mpi-dir=/
> > Users/gideon/software --with-mpi-shared=1 --with-x11
> > --download-
> > hypre=1 --with-hypre=1 --download-umfpack=1
> > --with-umfpack=1 --with-
> > shared=1 --with-dynamic=1
> > [0]PETSC ERROR:
> ------------------------------------------------------------------------
> > [0]PETSC ERROR: User provided function() line 0 in
> > unknown directory
> > unknown file
>
>
>
>       
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