[petsc-users] GAMG

Jed Brown jed at jedbrown.org
Wed Jun 10 11:42:49 CDT 2015


Mark Adams <mfadams at lbl.gov> writes:

> Yes, lets get this back on the list.
>
> On Wed, Jun 10, 2015 at 12:01 PM, Young, Matthew, Adam <may at bu.edu> wrote:
>
>>  Ah, oops - I was looking at the v 3.5 manual. I am certainly interested
>> in algorithmic details if there are relevant papers. My main interest right
>> now is determining if this method is appropriate for my problem.
>>
>
> Jed mentioned that this will not work well out of the box, as I recall.  It
> looks like very high anisotropy.  

It looks like a hyperbolic term.  If you only look at the symmetric part
of the tensor, then you get anisotropy (1 versus 1 + \kappa^2 ≅ 10000),
but we also have a big nonsymmetric contribution.
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