On Tue, Nov 9, 2010 at 12:49, Tim Kroeger <tim.kroeger at cevis.uni-bremen.de>wrote:
> Well, as you know, I'm using PETSc only via libMesh. Creating a standalone > PETSc test case is non-trivial for me. But I'll keep to this and will > either find out that I did something wrong or produce a test case for you. > > It might be imporant to know that the original matrix is a ShellMatrix. > Yes, this is important. Check the implementation of MatMultAdd for the Shell. Jed -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20101109/b5fa6104/attachment.htm>
