[petsc-dev] [petsc-maint #67637] Re: [petsc-users] Scalability of AO ?

[Matthew Knepley]

On Mon, Mar 21, 2011 at 6:11 PM, Jed Brown <jed at 59a2.org> wrote:

> On Tue, Mar 22, 2011 at 00:06, Matthew Knepley <petsc-maint at mcs.anl.gov
> >wrote:
>
> > 3) It should go into TS
>
>
> Really? It depends on a specific DM implementation. If you offered up a
> generic algebraic interface, then it could just be a normal explicit TS.
> But
> it seems to me that DM is a better choice for particle tracking, at least
> all the spatial queries and such.
>

Rationale: The function of characteristic is to handle the material
derivative in a
timestepping method.

Caveats: I agree that the current implementation is dependent on DMDA. This
should be remedied.

    Matt


> On Tue, Mar 22, 2011 at 00:06, Matthew Knepley <petsc-maint at mcs.anl.gov>wrote:
>
>> 3) It should go into TS
>
>
> Really? It depends on a specific DM implementation. If you offered up a
> generic algebraic interface, then it could just be a normal explicit TS. But
> it seems to me that DM is a better choice for particle tracking, at least
> all the spatial queries and such.
>
>


-- 
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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