On Sun, May 15, 2011 at 15:23, Henning Sauerland <uerland at gmail.com> wrote:
> 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. 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. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20110515/e153dbd8/attachment.htm>
