Hello everyone! This is deal.II newsletter #197. 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: #13262: Do not store some things in the CA::Interface base class. (proposed by bangerth) https://github.com/dealii/dealii/pull/13262 #13261: Minor doc update to the consensus algorithms. (proposed by bangerth) https://github.com/dealii/dealii/pull/13261 #13260: FEEval: allow to reinit with a batch with arbitrary cells (proposed by peterrum) https://github.com/dealii/dealii/pull/13260 #13259: FEEval: replace usages of n_vectorization_actual (proposed by peterrum) https://github.com/dealii/dealii/pull/13259 #13258: FEEval: do not use cell as indication if reinit() was called (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/13258 #13257: PEX: Replace MPI_Irecv with MPI_Iprobe+MPI_Recv (proposed by bangerth) https://github.com/dealii/dealii/pull/13257 #13256: Hotfix: Avoid warning about implicit conversion to bool. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/13256 #13255: Use consistent grammar in the list of tutorial programs. (proposed by bangerth) https://github.com/dealii/dealii/pull/13255 #13254: Revert "Add clang-tidy check" (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/13254 #13253: Move jacobian_gradients into FEEvalData (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/13253 #13252: Move quadrature_points into FEEvalData (proposed by peterrum) https://github.com/dealii/dealii/pull/13252 #13251: FEEval: use get_cell_ids() at more places (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/13251 #13250: Cleanup `references.bib`. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/13250 #13249: Added bibtex entry for `refine_and_coarsen_optimize` reference. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/13249 #13248: Typo correction (proposed by rschoof; merged) https://github.com/dealii/dealii/pull/13248 #13247: Rename variable (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/13247 #13245: Make reuse of mapping data in FEPointEvaluation safer (proposed by kronbichler) https://github.com/dealii/dealii/pull/13245 #13244: Remove unnecessary include file (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/13244 #13241: Make reference to SUNDIALS solvers in step-26. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/13241 #13240: FEEval: do not cast const away during read_dof_values() (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/13240 #13239: Hermite finite elements - initial pull request (proposed by ivweber) https://github.com/dealii/dealii/pull/13239 #13238: Reference book directly in step-55. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/13238 #13237: Added bibtex entry for SolverMinRes reference. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/13237 #13236: fix two small typos (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13236 #13235: Some updates to the PEX code (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/13235 #13234: [9.3] CMake: use portable "cmake -E remove" in quick_tests (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/13234 #13233: [9.3] Compatibility to oneAPI suite and oneTBB `apt` package. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/13233 #13232: Validate correctness of input arguments. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/13232 #13231: Marginally accelerate compute_point_to_point_communication_pattern(). (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/13231 #13230: Add a couple of assertions. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/13230 #13229: Add contains functions to check that flags contain a specific flag (proposed by masterleinad) https://github.com/dealii/dealii/pull/13229 #13227: CMake: adjust tbb path glob to "lib/intel64/gcc*" layout (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13227 #13226: Improve usability of PreconditionRelaxation (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/13226 #13225: Fix Y-pipe example in doc for `pipe_junction`. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/13225 #13224: [9.3] take over oneAPI fixes (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13224 #13223: Automatically resize receive buffer in the NBX algorithm (proposed by bangerth) https://github.com/dealii/dealii/pull/13223 #13222: Add a changelog entry for #13165. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/13222 #13221: Fix a redefined variable error in a test. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/13221 #13220: Fix doxygen problems with `GridGenerator::pipe_junction` (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/13220 #13219: Replace MPI_Irecv with MPI_Iprobe+MPI_Recv. (proposed by bangerth) https://github.com/dealii/dealii/pull/13219 #13217: Fix some spurious variable names (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/13217 #13215: Do not reuse an MPI_Status object. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/13215 #13214: Sort the member functions of ConsensusAlgorithms::NBX. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/13214 #13212: Improve and fix FETools::extrapolate() (proposed by bangerth) https://github.com/dealii/dealii/pull/13212 #13202: Faster and simpler search for lost particles (proposed by gassmoeller; merged) https://github.com/dealii/dealii/pull/13202 #13179: OneAPI compatibility: enable oneAPI configuration in CMake, changelog (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13179 #13048: Use FEEvaluationHangingNodes in MGTwoLevelTransfer (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/13048 #13028: Generator for `pipe_junction` geometries. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/13028 #12983: Allow reusing mapping data in FEPointEvaluation (proposed by gassmoeller; merged) https://github.com/dealii/dealii/pull/12983 #12265: Add readability-implicit-bool-conversion (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/12265 ## And this is a list of recently opened or closed discussions: #13263: Optimize `MatrixFree::n_active_entries_per_*_batch()` (opened) https://github.com/dealii/dealii/issues/13263 #13246: Randomly disappearing particles in non-trivial geometries (hyper_ball) since the merge of #13202 (opened) https://github.com/dealii/dealii/issues/13246 #13243: Move 'receiver' out of FETools::extrapolate() CellData structure (opened) https://github.com/dealii/dealii/issues/13243 #13242: Cannot find the header files when compiling with WSL Linux distributive in VS code (opened) https://github.com/dealii/dealii/issues/13242 #13228: The 9.3.3 release (opened) https://github.com/dealii/dealii/issues/13228 #13218: `Patterns::Tools::Convert::to_value()` does not work with `std::array`. (opened) https://github.com/dealii/dealii/issues/13218 #13216: ParameterAcceptor left in unpredictable state if exception is thrown in parse_parameters_call_back() (opened) https://github.com/dealii/dealii/issues/13216 #13213: ConsensusAlgorithm: answer needs to be of known size (opened) https://github.com/dealii/dealii/issues/13213 #13194: p4est installation script cannot find `p4est_config.h` file, causing compilation error (closed) https://github.com/dealii/dealii/issues/13194 #11561: Please support oneTBB (closed) https://github.com/dealii/dealii/issues/11561 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 dealii@googlegroups.com, or by opening issues or pull requests at https://www.github.com/dealii/dealii. 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