<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Tue, Oct 4, 2016 at 2:39 AM, Sander Arens <span dir="ltr"><<a href="mailto:Sander.Arens@ugent.be" target="_blank">Sander.Arens@ugent.be</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I think it would also be interesting to have something similar to TS ex25, but now with DMPlex and DG.</div></blockquote><div><br></div><div>I think this would be my first target. I realize that the Laplacian is part of it, so that Justin's suggestion of ex12</div><div>follows from that.</div><div><br></div><div> Matt</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><div class="gmail_quote">On 4 October 2016 at 04:57, Justin Chang <span dir="ltr"><<a href="mailto:jychang48@gmail.com" target="_blank">jychang48@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Advection-diffusion equations. Perhaps SNES ex12 could be modified to include an advection term?<br></div><div class="m_-236655671786317688HOEnZb"><div class="m_-236655671786317688h5"><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Oct 3, 2016 at 9:52 PM, Barry Smith <span dir="ltr"><<a href="mailto:bsmith@mcs.anl.gov" target="_blank">bsmith@mcs.anl.gov</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span><br>
> On Oct 3, 2016, at 9:45 PM, Justin Chang <<a href="mailto:jychang48@gmail.com" target="_blank">jychang48@gmail.com</a>> wrote:<br>
><br>
> I am just saying the poission problem as an example since that is one of the simpler PDEs out there and already exists.<br>
<br>
</span> 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?<br>
<span class="m_-236655671786317688m_4437616245107793440HOEnZb"><font color="#888888"><br>
Barry<br>
</font></span><div class="m_-236655671786317688m_4437616245107793440HOEnZb"><div class="m_-236655671786317688m_4437616245107793440h5"><br>
><br>
> On Mon, Oct 3, 2016 at 9:28 PM, Matthew Knepley <<a href="mailto:knepley@gmail.com" target="_blank">knepley@gmail.com</a>> wrote:<br>
> On Mon, Oct 3, 2016 at 6:36 PM, Justin Chang <<a href="mailto:jychang48@gmail.com" target="_blank">jychang48@gmail.com</a>> wrote:<br>
> Hi all,<br>
><br>
> 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<br>
><br>
> We will have a trial DG in PETSc shortly. However, I don't think DG methods make much sense for elliptic<br>
> problems. Why would I use it there?<br>
><br>
> Thanks,<br>
><br>
> Matt<br>
><br>
> Thanks,<br>
> Justin<br>
> --<br>
> What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>
> -- Norbert Wiener<br>
><br>
<br>
</div></div></blockquote></div><br></div>
</div></div></blockquote></div><br></div>
</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>-- Norbert Wiener</div>
</div></div>