You are misinterpreting Hong's statement. Satish
On Sat, 10 Sep 2011, amrit poudel wrote: > Now that you mentioned I can set -pc_type to any of the available > preconditioners and still use the specified direct solver, that > cleared up my confusion. > > You must include '-pc_type lu' to use mumps. There are many > > preconditioners for solving linear system, lu is one of pcs, and > > mumps is one of packages implement lu.
