OK, got it, thanks! David
On Thu, Mar 5, 2015 at 5:08 PM, Jed Brown <j...@jedbrown.org> wrote: > David Knezevic <david.kneze...@akselos.com> writes: > > I was just wondering if its possible to achieve the same sort of thing > with > > other AMG solvers (e.g. BoomerAMG)? I assume that MatSetNearNullSpace > does > > nothing for external solvers like hypre, right? > > It is used by ML (smoothed aggregation), but not BoomerAMG (classical > AMG) which uses an algorithm that doesn't have a natural place for such > information. To my knowledge, classical AMG is not widely used for > elasticity. It is very robust for M-matrices. >
