<div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br><br>
> The Riemann solver computes the flux and the Jacobian is assembled in PETSc.<br>
<br>
If you run this example with an implicit integrator, it uses FD coloring<br>
to compute the Jacobian. Manav wants an analytic Jacobian. I was<br>
hoping Matt could answer this; I haven't used Plex in that way.<br></blockquote><div><br></div><div>Oh right. That test is explicit.</div><div><br></div><div>Matt is on vacation but he is doing email.</div></div></div>