On Mon, Mar 21, 2011 at 6:11 PM, Jed Brown <span dir="ltr"><<a href="mailto:jed@59a2.org">jed@59a2.org</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div></div><div class="h5">On Tue, Mar 22, 2011 at 00:06, Matthew Knepley <<a href="mailto:petsc-maint@mcs.anl.gov">petsc-maint@mcs.anl.gov</a>>wrote:<br>
<br>
> 3) It should go into TS<br>
<br>
<br>
Really? It depends on a specific DM implementation. If you offered up a<br>
generic algebraic interface, then it could just be a normal explicit TS. But<br>
it seems to me that DM is a better choice for particle tracking, at least<br>
all the spatial queries and such.<br></div></div></blockquote><div><br></div><div>Rationale: The function of characteristic is to handle the material derivative in a</div><div>timestepping method.</div><div><br></div><div>
Caveats: I agree that the current implementation is dependent on DMDA. This</div><div>should be remedied.</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><div class="h5"></div></div><div class="gmail_quote">On Tue, Mar 22, 2011 at 00:06, Matthew Knepley <span dir="ltr"><<a href="mailto:petsc-maint@mcs.anl.gov" target="_blank">petsc-maint@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">
3) It should go into TS</blockquote></div><br><div>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.</div>
<br></blockquote></div><br><br clear="all"><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>