On Mon, Feb 4, 2013 at 4:20 PM, Derek Gaston <fried...@gmail.com> wrote:
> Thanks Jed.... PCReset() somewhat fixed it... but now I get this:
>
> [0]PETSC ERROR: Error in external library!
> [0]PETSC ERROR: Error in HYPRE_IJMatrixAssemble()!
> ...
> [0]PETSC ERROR: MatHYPRE_IJMatrixFastCopy_SeqAIJ() line 183 in
> src/dm/impls/da/hypre/mhyp.c
> [0]PETSC ERROR: MatHYPRE_IJMatrixCopy() line 127 in
> src/dm/impls/da/hypre/mhyp.c
> [0]PETSC ERROR: PCSetUp_HYPRE() line 118 in src/ksp/pc/impls/hypre/hypre.c
> [0]PETSC ERROR: PCSetUp() line 832 in src/ksp/pc/interface/precon.c
> [0]PETSC ERROR: PCApply() line 380 in src/ksp/pc/interface/precon.c
> [0]PETSC ERROR: apply() line 53 in
> "unknowndirectory/"src/numerics/petsc_preconditioner.C
>
> Looks like maybe PCReset() doesn't work properly with Hypre?
>
I should add a test in PETSC if it doesn't. Is there a libmesh example I
can use to reproduce this?
>
> As for why this worked before and isn't now... I have no idea. We were
> definitely changing the system size all the time with adaptivity... and
> never saw this before...
>
Are you sure the PC was not being destroyed and recreated?
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