Hello everyone! This is deal.II newsletter #202. 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: #13436: Move a couple of functions out of line. (proposed by bangerth) https://github.com/dealii/dealii/pull/13436 #13435: Fixed ParsedConvergenceTable::difference() (proposed by luca-heltai) https://github.com/dealii/dealii/pull/13435 #13434: Fix p:d:T::copy_triangulation() (proposed by peterrum) https://github.com/dealii/dealii/pull/13434 #13433: New DoFAccessor test added for vertex dofs (proposed by rezarastak) https://github.com/dealii/dealii/pull/13433 #13432: change logic in tensor product kernels to positive statements? (proposed by nfehn) https://github.com/dealii/dealii/pull/13432 #13431: Fix indent-all header typo (proposed by gfcas; merged) https://github.com/dealii/dealii/pull/13431 #13430: Improve assert message for invalid FE indices in DoFAccessor (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/13430 #13429: Replace present_index by index() in DoFAccessor (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/13429 #13427: Add shape function illustrations for FE_Nedelec (proposed by harmonj) https://github.com/dealii/dealii/pull/13427 #13426: CMake: Fix typo (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13426 #13425: Add erf function to deal.II muparser functions (proposed by blaisb; merged) https://github.com/dealii/dealii/pull/13425 #13424: Performance tests: some more polishing (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13424 #13423: Bugfix: adjust collect_measurements to new directory layout (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13423 #13422: Remove some unnecessary includes of grid_tools.h (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/13422 #13421: Fixed bug in gmsh api. (proposed by luca-heltai; merged) https://github.com/dealii/dealii/pull/13421 #13420: FEEval::check_vector_compatibility: improve assert message (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/13420 #13419: Utilities::MPI::internal::ComputeIndexOwner classes into a source file. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/13419 #13417: CMake: Testsuite: make target names compatible with 9.3 (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13417 #13416: Fix non matching coupling (proposed by luca-heltai) https://github.com/dealii/dealii/pull/13416 #13415: Another rectangular version of add_entries_local_to_global() (proposed by luca-heltai; merged) https://github.com/dealii/dealii/pull/13415 #13414: Introduce free functions for consensus algorithms. (proposed by bangerth) https://github.com/dealii/dealii/pull/13414 #13413: CMake: Do not use "\." in CMake regular expression (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13413 #13410: Make hyper_ball_balanced available for GridGenerator::generate_from_name_and_argument() (proposed by luca-heltai; merged) https://github.com/dealii/dealii/pull/13410 #13409: Performance tests: add a valgrind wrapper (proposed by tamiko) https://github.com/dealii/dealii/pull/13409 #13408: CMake: also record git commit timestamp (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13408 #13407: step-40/step-17 grammar edits (proposed by singima; merged) https://github.com/dealii/dealii/pull/13407 #13406: Improve indentation in a few tutorials (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/13406 #13405: Add matrix-free benchmark based on step-37 (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/13405 #13403: remove useless assert (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/13403 #13401: Harden cmake regexes when looking for #define strings. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/13401 #13400: Fix typo (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/13400 #13399: Improve instruction-level parallelism for precondition_SSOR (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/13399 #13398: Minor cleanup to test of non_matching::FEValues (proposed by simonsticko; merged) https://github.com/dealii/dealii/pull/13398 #13397: Add support in Patterns::Tools::Convert for std::array (proposed by luca-heltai; merged) https://github.com/dealii/dealii/pull/13397 #13396: LA::d::BV add copy_locally_owned_data_from() (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/13396 #13395: Make mpi_type_id a template variable. (proposed by bangerth) https://github.com/dealii/dealii/pull/13395 #13394: Add ArborXWrappers::DistributedTree (proposed by Rombur) https://github.com/dealii/dealii/pull/13394 #13393: Explicitly delete a function that we don't want to be called. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/13393 #13392: CMake: Simplify some logic in DEAL_II_ADD_TEST and add verbose error messages (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13392 #13389: Testsuite: add a test checking test.json + test.output support (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13389 #13388: CMake: Allow to define multiple threads= variant tests (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13388 #13384: Avoid implicit-bool conversion for stream objects. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/13384 #13379: support large buffers in MPI::broadcast() (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/13379 #13374: CMake: Adjust MPI and ZLIB support query for p4est version 2.8 (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/13374 #13365: Early deprecate functions in DoFTools (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/13365 ## And this is a list of recently opened or closed discussions: #13428: Failure when building Trilinos matrices with more than 2B entries (opened) https://github.com/dealii/dealii/issues/13428 #13418: Error when extract face dofs of face boardering `FE_Nothing` (opened and closed) https://github.com/dealii/dealii/issues/13418 #13412: Buggy constraints in `NonMatching` namespace (opened) https://github.com/dealii/dealii/issues/13412 #13411: Setup of MatrixFree got slower since release 9.3 (opened) https://github.com/dealii/dealii/issues/13411 #13404: HDF5 output doesn't work if a process has no cells (opened) https://github.com/dealii/dealii/issues/13404 #13402: Remove a pointless assertion. (opened and closed) https://github.com/dealii/dealii/issues/13402 #13357: MPI::broadcast() can't deal with more than 2GB of data (closed) https://github.com/dealii/dealii/issues/13357 #13218: `Patterns::Tools::Convert::to_value()` does not work with `std::array`. (closed) https://github.com/dealii/dealii/issues/13218 #7071: Support erf in FunctionParser (closed) https://github.com/dealii/dealii/issues/7071 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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