Hello everyone! In tutorials the coarest level multigrid is solved either by householder direct sovler for FullMatrix or by a iterative solver based on MGCoarseGridHouseholder and MGCoarseGridIterativeSolver, respectively. *However I want to solve the coarest level with a sparse direct solver.* Both 2 MGCoarseGrid class access MGCoarseGridBase, so SparseDirectUMFPACK cannot be used.
Take step-16 for example. The only way possible I my mind is *using PETScMUMPS and put it in MGCoarseGridIterativeSolver,* and matrix & vector type need to be changed to PETSc accordingly. Is this gonna work? -- 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/103ebcb1-ecfc-4bc8-bc06-a0ed07968834n%40googlegroups.com.
