Hello everyone! This is deal.II newsletter #259. 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: #15539: Remove deprecated LegacySignal. (proposed by marcfehling) https://github.com/dealii/dealii/pull/15539 #15538: Use ArborX for spatial search in `guess_owners_of_entities()` (proposed by fdrmrc) https://github.com/dealii/dealii/pull/15538 #15537: MatrixFree: Reduce header inclusions in expensive factory files (proposed by kronbichler) https://github.com/dealii/dealii/pull/15537 #15536: Simplify IndexSet::add_index() (proposed by kronbichler) https://github.com/dealii/dealii/pull/15536 #15535: Avoid one potential quadratic complexity case in IndexSet::add_ranges (proposed by kronbichler) https://github.com/dealii/dealii/pull/15535 #15534: Remove deprecated Vector member functions (proposed by masterleinad) https://github.com/dealii/dealii/pull/15534 #15533: [9.5] Only enable -ffp-exception-behavior=strict for some platforms. (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15533 #15532: Only enable -ffp-exception-behavior=strict for some platforms. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/15532 #15530: Remove deprecated functions in fe_interface_values.h (proposed by masterleinad) https://github.com/dealii/dealii/pull/15530 #15529: Remove deprecations in consensus algorithms (proposed by masterleinad) https://github.com/dealii/dealii/pull/15529 #15528: Remove deprecated CellDataTransferBuffer (proposed by masterleinad) https://github.com/dealii/dealii/pull/15528 #15527: FEFaceEvaluation: Fix ECL for continuous elements (proposed by bergbauer) https://github.com/dealii/dealii/pull/15527 #15526: CMake: fix submit_results.cmake (proposed by tamiko) https://github.com/dealii/dealii/pull/15526 #15525: Do not remove duplicates before inserting index set elements. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15525 #15524: Test: mpi/locally_owned_dofs_per_subdomain_02: do not compare output (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15524 #15523: [9.5] Test: mpi/locally_owned_dofs_per_subdomain_02: do not compare output (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15523 #15521: Make output of non_nested_transfer tests less verbose (proposed by fdrmrc) https://github.com/dealii/dealii/pull/15521 #15520: Shorten compilation time of two MatrixFree tests (proposed by kronbichler) https://github.com/dealii/dealii/pull/15520 #15518: [9.5] CMake: remove taskflow macros from config.h.in (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15518 #15517: Fix MGTwoLevelTransfer when used without MPI (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/15517 #15516: Move job_supports_mpi() to a more central place (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/15516 #15515: [9.5] CMake: remove VTK configure option (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15515 #15514: [9.5] Fix output for matrix_free/matrix_free_device_initialize_vector with CUDA support (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15514 #15513: Fix output for matrix_free/matrix_free_device_initialize_vector with CUDA support (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/15513 #15511: [9.5] Remove taskflow configuration option and bundled library (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15511 #15510: [9.5] CMake: enable -ffp-exceptions-behavior=strict when compiling with clang (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15510 #15509: CMake: enable -ffp-exceptions-behavior=strict when compiling with clang (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15509 #15508: Post release branch: require the current version of deal.II (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15508 #15507: Post release branch: switch DEAL_II_DEPRECATED_EARLY over to DEAL_II_DEPRECATED (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15507 #15506: [9.5] update AUTHORS.md and LICENSE.md (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15506 #15505: Post release branch: update VERSION on main branch (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15505 #15503: Update the changelog file for the release. (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15503 #15502: Fix compiling with clang-16 and C++20 (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/15502 #15500: Tests: exonerate two debug test variants and run them again (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15500 #15499: CMake: run_test.sh: ensure to never bind to cores/processors for mpi tests (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15499 #15498: Update .mailmap: a quick update to fix some spelling e-mail setting mistakes (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15498 #15497: Test simplex/compute_point_locations_01: add output variant (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15497 #15494: Require ArborX 1.3 or later (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/15494 #15493: Test non_matching/step-70: add an output variant (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15493 #15492: Ensure we set a flag correctly even if a task ends in an exception. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15492 #15491: Test numerics/nonlinear_solver_selector_03: add ouput variant (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15491 #15489: Catch exceptions as const-reference when possible. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15489 #15488: Test: cgal/cgal_intersect_simplices_2d_3d: restrict to CGAL >= 5.5.0 (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15488 #15487: Test mpi/p4est_bug_01: remove test (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15487 #15486: MatrixFree inverse mass matrix: Make tests more robust (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/15486 #15485: Add two output variants for tests writing p4est vtk output (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/15485 #15483: [CI] enable fsanitize=address for serial build (proposed by tjhei) https://github.com/dealii/dealii/pull/15483 #15482: fix unused variable warning (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/15482 #15481: fix kinsol unused lambda capture warning (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/15481 #15479: CMake: improve testsuite driver performance (proposed by tamiko) https://github.com/dealii/dealii/pull/15479 #15477: Test fe/fe_enriched_color_07: do not run debug variant (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15477 #15475: Test scalapack/*: restrict all scalapack tests to less than 10 mpi ranks (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15475 #15474: Fixes for FPE and older versions of PETSc (proposed by stefanozampini; merged) https://github.com/dealii/dealii/pull/15474 #15473: Test mpi/trilinos_step-27: add output variant (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15473 #15472: Test distributed_grids/checkpointing_03: do not run debug variant (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15472 #15471: Test lac/vector_memory_02: add output variant (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15471 #15470: Test: lac/linear_operator_10: disable floating point exceptions (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15470 #15469: Test grid/grid_tools_cache_{04,06,08,09}: add output variants (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15469 #15468: Test grid/grid_generator_pipe_junction: add output variant (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15468 #15467: Test cgal/cgal_triangulation_05: add test variant for clang-16, libc++ (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15467 #15466: Test cgal/cgal_remesh_surface: disable floating point exceptions (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15466 #15465: Filter out --help from argv when initializing Kokkos (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15465 #15464: Use struct to initialize Kokkos (proposed by peterrum) https://github.com/dealii/dealii/pull/15464 #15462: Test cgal/cgal_triangulation_06: disable floating point exceptions (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15462 #15461: Test distributed_grids/3d_refinement_08: add output variants (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/15461 #15460: Add output variant. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15460 #15458: Revert a change that breaks compilation. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15458 #15443: Add an assertion. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15443 #15438: Simplify some code that uses SolutionTransfer. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15438 #15420: Add a version of step-67 that uses PETSc TS time stepping. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15420 #15419: Minor adjustment to versions of step-77 in the test suite. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15419 #15418: When we know that sparsity pattern entries are sorted, communicate that. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15418 #15417: Standardize on the idiom of calling std::erase after std::unique. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15417 #15416: Rename a lambda function and make it easier to read. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15416 #15402: Optimize IndexSet::add_indices() for the case of duplicate indices. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/15402 ## And this is a list of recently opened or closed discussions: #15531: OS X tester is broken (opened) https://github.com/dealii/dealii/issues/15531 #15522: PETScWrappers::MatrixFree should use std::function instead of function overloads (opened) https://github.com/dealii/dealii/issues/15522 #15519: Testsuite: improve test timings (opened) https://github.com/dealii/dealii/issues/15519 #15512: MGTwoLevelTransfer not working without MPI (opened and closed) https://github.com/dealii/dealii/issues/15512 #15504: On Debian Bullseye: Incompatibility with Octave (opened) https://github.com/dealii/dealii/issues/15504 #15501: Compilation failure with clang-16 and gcc-13 with -std=c++20 (opened and closed) https://github.com/dealii/dealii/issues/15501 #15496: Test matrix_free/fe_q_iso_q1_01 segfaults with clang-16 when linked against libc++ in debug mode (opened and closed) https://github.com/dealii/dealii/issues/15496 #15495: Threads::Task::return_value() should not be allowed when a task ends with an exception. (opened) https://github.com/dealii/dealii/issues/15495 #15490: CMake: require ArborX-1.3 or newer when configuring with external kokkos-4 (opened and closed) https://github.com/dealii/dealii/issues/15490 #15484: hdf5: error while loading shared libraries: libhdf5hl_fortran.so.200 (opened and closed) https://github.com/dealii/dealii/issues/15484 #15480: Exception `Mapping<dim>::ExcTransformationFailed` not caught (macOS) (opened) https://github.com/dealii/dealii/issues/15480 #15478: Segmentation fault in dealii::Threads::Task<...>::TaskData::~TaskData() with libc++ (opened and closed) https://github.com/dealii/dealii/issues/15478 #15476: Testsuite: don't print exc.what() in tests (opened) https://github.com/dealii/dealii/issues/15476 #15463: Move GridTools::internal::distributed_compute_intersection_locations out of the internal namespace. (opened and closed) https://github.com/dealii/dealii/issues/15463 #15456: Passing `--help` to a deal.II application prints the kokkos help (opened and closed) https://github.com/dealii/dealii/issues/15456 #15424: Failing PETSc tests with older versions (closed) https://github.com/dealii/dealii/issues/15424 #15400: Improve IndexSet::add_indices() for sorted ranges with duplicates (closed) https://github.com/dealii/dealii/issues/15400 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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