<div class="gmail_quote">On Sun, May 15, 2011 at 15:23, Henning Sauerland <span dir="ltr"><<a href="mailto:uerland@gmail.com">uerland@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Unfortunately, it is not that easy to switch to BAIJ. I only have a local XFEM basis. That is, I have variable numbers of degrees of freedom throughout the domain (nodes of elements cut by the fluid interface have on additional "XFEM unknown"). At the moment, I don't know how or if I can handle the XFEM block when using BAIJ.</blockquote>
</div><br><div>This is a problem, but you can still order unknowns in the vector so that velocity and pressure all come together, then AIJ/Inode will treat the components together which will tend to make ILU stronger.</div>