Dear Pai, > In TrilinosWrappers:: I found two amg > preconditioner: PreconditionerAMGMueLu > > and PreconditionerAMG. What is the general difference between these two > > preconditioners? For a linear elasticity problem, which one should I > use? > > Pai -- PreconditionerAMG uses the Trilinos package ML, whereas > PreconditionerAMGMueLu uses the Trilinos package MueLu. MueLu is a more > modern > implementation of the same ideas. I don't think they are vastly different > in > performance. > > Best > W. >
I recently switched over parts of my codes from using PreconditionerAMG to MueLu for a linear elasticity computation. The performance difference is slight, but MueLu offers you more oppertunities to tune your preconditioner. If you start implementing nowadays I would prefer to use MueLu. Best Uwe -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
