[deal.II] Using MeshWorker to compute norms -- loss of accuracy?

2024-05-06 Thread Sean Carney
Hi all, I am brand new to deal.II, so please excuse me if this question has an obvious answer. So far, I am quite enjoying the library and working through the different Step tutorials. I've been working through Step-47 and in particular am trying to better understand the MeshWorker class.

Re: [deal.II] AffineConstraints distribute_local_to_global error

2024-05-06 Thread Wolfgang Bangerth
On 5/7/24 00:46, Vinayak Vijay wrote: I am trying to assemble a system using the AffineConstraints::distribute_local_to_global(...) function as per the following code snippet: constraints.distribute_local_to_global(cell_matrix_multiplier01, local_dof_indices, dof_indices_multiplier, system_m

[deal.II] AffineConstraints distribute_local_to_global error

2024-05-06 Thread Vinayak Vijay
Hello, I am trying to assemble a system using the AffineConstraints::distribute_local_to_global(...) function as per the following code snippet: constraints.distribute_local_to_global(cell_matrix_multiplier01, local_dof_indices, dof_indices_multiplier, system_matrix_network.block(0, 1)); Howev

Re: [deal.II] Parallized BEM (Step-34)

2024-05-06 Thread Daniel Arndt
Max, the problem is that GridGenerator::extract_boundary_mesh doesn't support the volume mesh to be an object of type parallel::distributed::Triangulation. This just isn't implemented yet. Do you actually need the input volume mesh to be distributed? Best, Daniel On Mon, May 6, 2024 at 12:06 PM

Re: [deal.II] Matrix-free: two-point volume fluxes for entropy-stable DG?

2024-05-06 Thread Jack Coughlin
Martin, I'm not sure what happened to my previous reply, it seems to have been deleted somehow. I haven't been able to implement the 1D version of this method in deal.ii yet, but I did do a prototype in Julia which leads me to believe it's simpler than I anticipated. However, one important det

[deal.II] Parallized BEM (Step-34)

2024-05-06 Thread 'Maximilian Hövener' via deal . II User Group
Dear all, in the course of my master thesis at the TU Dortmund I came across Deal.II while searching for a boundary element method. Is it possible to change the BEM explained in Step-34 to use it parallelised? I have already tried to make some changes using Step-40. This includes replacing the s