On Tue, Oct 4, 2016 at 2:39 AM, Sander Arens <[email protected]> wrote:
> I think it would also be interesting to have something similar to TS ex25, > but now with DMPlex and DG. > I think this would be my first target. I realize that the Laplacian is part of it, so that Justin's suggestion of ex12 follows from that. Matt > On 4 October 2016 at 04:57, Justin Chang <[email protected]> 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 <[email protected]> wrote: >> >>> >>> > On Oct 3, 2016, at 9:45 PM, Justin Chang <[email protected]> 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 <[email protected]> >>> wrote: >>> > On Mon, Oct 3, 2016 at 6:36 PM, Justin Chang <[email protected]> >>> 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 >>> > >>> >>> >> > -- 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
