Re: [Libmesh-users] Multilevel and multigrid on libMesh

[Travis A. <aus...@ya...>]

Roy,=0A=0AThat would figure.  It looks like I still need to get hypre insta=
lled with my version of petsc.  As this is=0Asomething that I want to do fo=
r my research (get AMG working) I'll probably be working on it in the =0Ane=
xt several weeks.  If anyone else gets it going it would be nice to hear if=
 there are known hurdles=0Ato get over.=0A=0AAnyway I assumed that BoomerAM=
G came installed with hypre by default.  I'll check later.=0A=0ATravis=0A=
=0A=0A=0A----- Original Message ----=0AFrom: Roy Stogner <roystgnr@ices.ute=
xas.edu>=0ATo: Travis Austin <aus...@gm...>=0ACc: libMesh maillist <=
Lib...@li...>=0ASent: Friday, December 15, 2006 8:13=
:17 AM=0ASubject: Re: [Libmesh-users] Multilevel and multigrid on libMesh=
=0A=0AOn Thu, 14 Dec 2006, Travis Austin wrote:=0A=0A> Sounds like a great =
idea and is the direction that we (at the=0A> University of Auckland) want =
to take libMesh.  But I was figuring on=0A> using Algebraic Multigrid (AMG)=
 for all of our multilevel computing=0A> needs.  BoomerAMG from LLNL is ava=
ilable within Petsc (may need to=0A> be downloaded separately) and easy to =
use.  Is there any particular=0A> reason that you are *not* using AMG other=
 than better efficiency?  I=0A> just wanted to make sure you were aware of =
using AMG as an optimal=0A> solver.=0A=0AI actually didn't realize that was=
 available; unfortunately even now=0Ait doesn't seem to be working on my PE=
TSc installation. =0A"-pc_type hypre -pc_hypre_type euclid" works fine, and=
 boomeramg is in=0Athe "-help" list of arguments for "-pc_hypre_type", but =
"-pc_type=0Ahypre -pc_hypre_type boomeramg" gives me a segfault.  Perhaps I=
 don't=0Ahave the BoomerAMG code installed, and HYPRE or PETSc just isn't b=
eing=0Asmart about giving me an error message to that effect.=0A---=0ARoy=
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