Dear all, I am trying to use a multigrid preconditioner to solve a PDE with two domains, in which the resulting matrix will be a block matrix. I am trying to replicate what is in step-16 tutorial program, but turns out it doesn't work since there are separate dof handlers for two domains, and I have no way to construct the PreconditionMG object to handle the dofs from both domains (since we can't combine two dof handlers into one).
Does deal.II provide a block preconditioner for multigrid, or do I have to implement my own from scratch by inheriting from Subscriptor class? I would greatly appreciate your help in this matter. Regards, Chayapol -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/1fa70c95-8f22-4a64-8667-7d8a537c169fn%40googlegroups.com.
