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Reference documentation for deal.II version 9.5.0
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selected_dofs has to have a length equal to all global degrees of freedom. Consequently, this does not scale to very large problems, and this is also why the function is deprecated. If you need the functionality of this function for parallel triangulations, then you need to use the other DoFTools::extract_boundary_dofs() function that returns its information via an IndexSet object. std::map instead. std::map instead. std_cxx20::identity_type instead. ShortPRM instead of ShortText. PRM instead of Text. solve_with_jacobian callback described below. weight signal instead which omits the base weight. You can invoke the old behavior by connecting a function to the signal that returns the base weight as follows. This function should be added in addition to the one that actually computes the weight.