On Mon, Apr 2, 2012 at 06:59, Karin&NiKo <niko.karin at gmail.com> wrote:
> I would like to use ML as a preconditioner for a linear elasticity problem. > I wonder if there is a way to indicate ML that it is dealing with a vector > problem. > I know that when using Prometheus, one must use a block matrix, and I > would like to know if there is a trick > in order to use ML in an optimal manner for vector problems. > The block size is used if you don't provide any other information. The preferred approach with petsc-dev is to use MatSetNearNullSpace(). (I'll make sure this is currently working with ML and reply to this message.) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120402/bc15d0bf/attachment.htm>
