I'm searching for robust smoothers for geometric multigrids.By robust I mean:Effective for high order approximations (say spectral element, spectral Discontinuous Galerkin),Parallel (suitable for co-processors),Effective for heterogeneity and anisotropy problems.From what I can gather, Schwarz type smoothers may be promising (Fischer et al); and block/line/ plane, and ILU smoothers are also recommended (Trottenberg et al).Are there any other state-of-the-art smoothers I should consider?
Robust smoothers for geometric multigrid
linear algebra;linear solver;iterative method;multigrid