[petsc-users] odd SNES behavior

[Jed Brown]

The associated change to fieldsplit is in 'next':

https://bitbucket.org/petsc/petsc/commits/branch/jed/fieldsplit-use-amat


On Mon, Mar 11, 2013 at 8:28 AM, Barry Smith <bsmith at mcs.anl.gov> wrote:

>
>   Sorry should be UseAmat
>
>
> On Mar 11, 2013, at 8:21 AM, "Mark F. Adams" <mark.adams at columbia.edu>
> wrote:
>
> > Humm, I'm not seeing PCSetUserAmat:
> >
> > 09:14  ~/Codes/petsc-dev$ hg grep PCSetUserAmat
> > src/docs/website/documentation/changes/dev.html:26440:        <li>Merged
> PCBJacobiSetUseTrueLocal(), -pc_bjacobi_true_local, PCKSPSetUseTrue(),
> -pc_ksp_true, PCCompositeSetUseTrue() -pc_composite_true to
> PCSetUserAmat(), -pc_use_amat.
> >
> >
> >
> > On Mar 8, 2013, at 10:27 AM, Barry Smith <bsmith at mcs.anl.gov> wrote:
> >
> >>
> >> On Mar 8, 2013, at 9:23 AM, "Mark F. Adams" <mark.adams at columbia.edu>
> wrote:
> >>
> >>>>
> >>>> I have merged PCBJacobiSetUseTrueLocal(), -pc_bjacobi_true_local,
> PCKSPSetUseTrue(), -pc_ksp_true, PCCompositeSetUseTrue() -pc_composite_true
> to PCSetUserAmat(), -pc_use_amat  in petsc-dev.
> >>>>
> >>>> Note that other preconditioners, PCMG,  PCFieldSplit, PCASM, PCGASM
> should adopt the same flag but I will leave that to Mark and Jed.
> >>>
> >>> GAMG's problem comes from PCMG, do I need to do anything?
> >>
> >>  Yes, modify the PCMG :-).
> >>>
> >>> other than make '-pc_use_amat false' because I would like to match
> hypre semantics by default.
> >>
> >>  It will be false by default.
> >>
> >>  Barry
> >>
> >>
> >>
> >
>
>
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