[petsc-users] DG within DMPlex

[Sander Arens]

I think it would also be interesting to have something similar to TS ex25,
but now with DMPlex and DG.

On 4 October 2016 at 04:57, Justin Chang <jychang48 at gmail.com> wrote:

> Advection-diffusion equations. Perhaps SNES ex12 could be modified to
> include an advection term?
>
> On Mon, Oct 3, 2016 at 9:52 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
>
>>
>> > On Oct 3, 2016, at 9:45 PM, Justin Chang <jychang48 at gmail.com> wrote:
>> >
>> > I am just saying the poission problem as an example since that is one
>> of the simpler PDEs out there and already exists.
>>
>>   Sometimes an example for the wrong approach is worse than no example.
>> Can you suggest a simple example where Discontinuous Galerkin makes good
>> sense instead of when it may not make sense?
>>
>>    Barry
>>
>> >
>> > On Mon, Oct 3, 2016 at 9:28 PM, Matthew Knepley <knepley at gmail.com>
>> wrote:
>> > On Mon, Oct 3, 2016 at 6:36 PM, Justin Chang <jychang48 at gmail.com>
>> wrote:
>> > Hi all,
>> >
>> > Is there, or will there be, support for implementing Discontinuous
>> Galerkin formulations within the DMPlex framework? I think it would be nice
>> to have something such as the SIPG formulation for the poisson problem in
>> SNES ex12.c
>> >
>> > We will have a trial DG in PETSc shortly. However, I don't think DG
>> methods make much sense for elliptic
>> > problems. Why would I use it there?
>> >
>> >   Thanks,
>> >
>> >     Matt
>> >
>> > Thanks,
>> > Justin
>> > --
>> > 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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