Hi Petsc users, I have a question regarding the use of Hypre and especially Boomeramg. How can we control the number of levels in the multigrid algortihm? Can we chose it, or if not, can we display it in some way? Best regards, Nicolas. -- Nicolas BATHFIELD Chalmers University of Technology Shipping and Marine Technology phone: +46 (0)31 772 1476 fax: +46 (0)31 772 3699