Hello everyone! This is deal.II newsletter #344. It automatically reports recently merged features and discussions about the deal.II finite element library.
## Below you find a list of recently proposed or merged features: #19271: add DataOutPoints class (proposed by tjhei) https://github.com/dealii/dealii/pull/19271 #19270: Fix using TpetraWrappers::SparseMatrix with non-contributing MPI ranks (proposed by masterleinad) https://github.com/dealii/dealii/pull/19270 #19269: cmake/configure: remove TestBoostBug files (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/19269 #19267: Fix a doxygen rendering issue. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/19267 #19266: Workaround bug in nvcc with C++20 (proposed by Rombur) https://github.com/dealii/dealii/pull/19266 #19265: Add missing boost include (proposed by Rombur; merged) https://github.com/dealii/dealii/pull/19265 #19264: Hp dof identities for simplices, wedges and pyramids (proposed by dominiktassilostill) https://github.com/dealii/dealii/pull/19264 #19263: Fix line breaks in comments to improve readability. (proposed by AndSte01; merged) https://github.com/dealii/dealii/pull/19263 #19262: Add refinement possibilities for Wedge. (proposed by AndSte01; merged) https://github.com/dealii/dealii/pull/19262 #19261: implement `n_children` to output meaningful values for unrefined cells. (proposed by AndSte01) https://github.com/dealii/dealii/pull/19261 #19259: Better document how we save parent indices. (proposed by bangerth) https://github.com/dealii/dealii/pull/19259 #19258: Restrict the argument to IndexSet::subtract_set(). (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/19258 #19257: Make the `new_isotropic_x` functions ready for refinement of cells with 10 children and 13 new faces. (proposed by AndSte01; merged) https://github.com/dealii/dealii/pull/19257 #19256: Add documentation about which children are stored. (proposed by AndSte01; merged) https://github.com/dealii/dealii/pull/19256 #19255: Provide `max_children_per_cell` equivalent in `ReferenceCell`. (proposed by AndSte01; merged) https://github.com/dealii/dealii/pull/19255 #19253: Add quadratic and cubic pyramid elements (proposed by dominiktassilostill) https://github.com/dealii/dealii/pull/19253 #19252: Add `face_to_cell_line_orientation` for pyramids (proposed by dominiktassilostill) https://github.com/dealii/dealii/pull/19252 #19250: Workaround bug in hipcc 6.4 (proposed by Rombur; merged) https://github.com/dealii/dealii/pull/19250 #19249: Better order the operations in step-7. (proposed by bangerth) https://github.com/dealii/dealii/pull/19249 #19248: Provide cost-accuracy plots for step-7. (proposed by bangerth) https://github.com/dealii/dealii/pull/19248 #19246: RemotePointEvaluation: support n_components in get_data_view() (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/19246 #19245: RemotePointEvaluation: use helper functions in tests (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/19245 #19243: DoFHandler policy: fix 64bit issues. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/19243 #19242: Deprecate EpetraWrappers classes (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/19242 #19241: MatrixTools: fix 64bit issues. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/19241 #19240: fix tests/matrix_free_kokkos/laplace_gmg_01 (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/19240 #19239: changelog entry for 64bit issues (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/19239 #19238: ParallelShared DofHandlerPolicy: clarification (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/19238 #19237: DoFRenumbering: fix 64bit issues (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/19237 #19236: ParseConvergenceTable: fix 64bit issue (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/19236 #19235: compute_nonzero_normal_flux(): fix 64bit issue (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/19235 #19234: Mark some comparisons 'if constexpr' (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/19234 #19233: Fix: Ensure array consistency for auxiliary vectors (proposed by rzhang20; merged) https://github.com/dealii/dealii/pull/19233 #19230: Update links in CONTRIBUTING.md (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/19230 #19227: Optimize SolverMinRes::solve by reducing redundant divisions and square roots (proposed by rzhang20; merged) https://github.com/dealii/dealii/pull/19227 #19225: Fix TrilinosWrappers::Vector::sadd() when the argument is a vector with ghost entries. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/19225 #19220: Remove a flippant comment. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/19220 #19219: Re-enable zeroing out vectors with ghost elements. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/19219 #19200: More cleaning up of connectivity.h. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/19200 #19019: Implementation of grid uniform_channel_with_sphere (proposed by a412h; merged) https://github.com/dealii/dealii/pull/19019 ## And this is a list of recently opened or closed discussions: #19274: Regression tester regressed 172a7f (opened) https://github.com/dealii/dealii/issues/19274 #19273: Regression tester regressed 5508fc (opened) https://github.com/dealii/dealii/issues/19273 #19272: `Vector::lp_norm()` returns a local p-norm without global reduction in parallel (opened) https://github.com/dealii/dealii/issues/19272 #19268: Regression tester regressed 3b59a3 (opened) https://github.com/dealii/dealii/issues/19268 #19260: Regression tester regressed 416729 (opened and closed) https://github.com/dealii/dealii/issues/19260 #19254: Make deal.II fit for refinement of cells with 10 children. (opened) https://github.com/dealii/dealii/issues/19254 #19251: Regression tester regressed 8e8394 (opened and closed) https://github.com/dealii/dealii/issues/19251 #19247: Regression tester regressed 58ea32 (opened and closed) https://github.com/dealii/dealii/issues/19247 #19244: Assemble flags for a DG simulation with MeshWorker::mesh_loop (opened) https://github.com/dealii/dealii/issues/19244 #19229: Refactor `maybe_update_jacobian_pushed_forward_grads` to use `dealii::ndarray` for consistency (closed) https://github.com/dealii/dealii/issues/19229 #19205: Allow v=0 even for vectors that have ghost elements? (closed) https://github.com/dealii/dealii/issues/19205 #19196: Regression tester regressed 6e0ef8 (closed) https://github.com/dealii/dealii/issues/19196 #19189: Regression tester regressed 89c089 (closed) https://github.com/dealii/dealii/issues/19189 #19152: Regression tester regressed f05518 (closed) https://github.com/dealii/dealii/issues/19152 #19072: Remove CellType* class hierarchy in connectivity.h in favor of ReferenceCell. (closed) https://github.com/dealii/dealii/issues/19072 A list of all major changes since the last release can be found at https://www.dealii.org/developer/doxygen/deal.II/recent_changes.html. Thanks for being part of the community! Let us know about questions, problems, bugs or just share your experience by writing to [email protected], or by opening issues or pull requests at https://www.github.com/dealii/dealii. 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