[CIG-CS] Variable viscosity Stokes solver

[Matthew Knepley]

On Mon, Apr 11, 2011 at 4:58 AM, Walter Landry <walter at geodynamics.org>wrote:

> Ok.  I have moved this to the cig-cs list.
>
> As for which parts of Trilinos are used, I am not sure.  I believe it
> uses BoomerAMG.  Wolfgang would know best.  I am using Debian's
> package which includes everything.
>

BoomerAMG is Hypre, ML is Trilinos. You can just use both through PETSc.

   Matt


> Cheers,
> Walter Landry
> walter at geodynamics.org
>
>
> mspieg <mspieg at ldeo.columbia.edu> wrote:
> > On Apr 8, 2011, at 12:18 PM, Walter Landry wrote:
> >
> >>
> > mspieg <mspieg at ldeo.columbia.edu> wrote:
> >
> >     Hi All,
> >       and thanks for keeping me in the loop.
> >
> >     Maybe we should move this whole discussion to the cig-cs list?
> >
> > probably not a bad idea...
> >
> >>
> >
> >>
> >
> >     I have a version of deal.ii built here (although I think I may need
> >     to upgrade again).  Is there a repo for these benchmarks that I can
> >     pull?
> >
> >     The deal II benchmarks I have been discussing are available via
> mercurial
> >
> >       hg clone http://geodynamics.org/hg/cs/AMR/dealII_viscosity
> >
> > great...
> >
> >>
> >
> >>
> > The SAMRAI code is available at
> >
> >>
> >   hg clone http://geodynamics.org/hg/cs/AMR/Gamr
> >   hg clone http://geodynamics.org/hg/cs/AMR/SAMRAI
> >
> >>
> > SAMRAI is not too difficult to build, but Gamr is a bit tricky.  It is
> > still 2D at this point.
> >
> > I'll take a look...
> >
> >>
> >
> >>
> >
> >     I have another developer working with me here (Cian Wilson) on some
> >     unstructured FEM codes in FEniCS and it would be fun to get the same
> >     benchmarks up and going there as well for comparison.
> >
> >     >
> >     I already have a MADDs-1 version done in FEniCS/PETSc with block
> >     preconditioners I could clean up.
> >
> >     >
> >     re: trilinos... I take it you need trilinos because you're building
> on Samrai?
> >
> >     trilinos is only needed for the deal II code.
> >
> > Okay, I've only used the petsc back ends with deal.ii...which parts of
> > trilinos are needed?
> > m
> >
> >>
> >
> >>
> > Cheers,
> > Walter Landry
> > walter at geodynamics.org
> >
> > ----------------------------------------------------
> > Marc Spiegelman
> > Lamont-Doherty Earth Observatory
> > Dept. of Applied Physics/Applied Math
> > Columbia University
> > http://www.ldeo.columbia.edu/~mspieg
> > tel: 845 704 2323 (SkypeIn)
> > ----------------------------------------------------
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>



-- 
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
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