On Fri, Dec 17, 2010 at 10:49, Jan Biermann <biermann@tu-harburg.de> wrote:
I just implemented two new solvers in Petsc that make use of Krylov subspace recycling, which means that if you have to solve a sequence of linear systems, the overall cost can be reduced significantly (by 10 to 100).

Have you sent these to petsc-maint@mcs.anl.gov?  We would be happy to add them.

Why is a special interface needed from libmesh?