> Dear Wolfgang Bangerth, > > Recently, I use your deal.II (Version 9.0.1)
It's really not *my* program any more -- more than 250 people have contributed to it by now :-) > to solve a group of PDEs > (haveing a wave-like solution whose amplitude is modulated by another > smoother > field). However, I encounter a problem: Function > parallel::distributed::GridRefinement::refine_and_coarsen_fixed_number > (tria, criteria, top_fraction_of_cells, bottom_fraction_of_cells, > max_n_cells > ) cannot always refine my grid (in my case, it is actually coarsening my > grid) > even if bottom_fraction_of_cells = 0 and max_n_cells = > pow(2,dim)*Triangulation::n_active_cells() . What are the criteria you have? Does the vector have only zeros in it? What is top_fraction? > I check the manual of deal.II > and find that refine levels of adjecent cells cannot exceed one which maybe > the reason for my problem. No, that should really not be the issue. Best W. -- ------------------------------------------------------------------------ Wolfgang Bangerth email: [email protected] www: http://www.math.colostate.edu/~bangerth/ -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/68c8ae3d-9a30-5147-d6a1-c0402dfbd937%40colostate.edu.
