Hello everyone! This is deal.II newsletter #296. 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: #17588: added my contribution to list of minor changes (proposed by mkghadban) https://github.com/dealii/dealii/pull/17588 #17587: Reintroduce a fast path for FESystem::compare_for_domination(). (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17587 #17585: Adjust a variable name in a test. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17585 #17584: Fix FiniteElement::has_support_points() for FE_Nothing. (proposed by bangerth) https://github.com/dealii/dealii/pull/17584 #17582: Portable MatrixFree: Allow initializing host vector (proposed by masterleinad) https://github.com/dealii/dealii/pull/17582 #17581: Enhance documentation of SolutionTransfer. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/17581 #17580: Fix some warnings (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/17580 #17579: Portable MatrixFree: compute diagonal (proposed by masterleinad) https://github.com/dealii/dealii/pull/17579 #17578: Arbitrary order quadrature on pyramids (proposed by dominiktassilostill) https://github.com/dealii/dealii/pull/17578 #17577: Leave a comment in the documentation. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17577 #17576: Quadratic and cubic pyramid elements (proposed by dominiktassilostill) https://github.com/dealii/dealii/pull/17576 #17575: [9.6] Create new string when demangling stacktraces (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/17575 #17574: Portable matrix-free: Add missing header files (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/17574 #17572: Suppress a warning about an unused variable. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17572 #17571: Update typos to 1.23.6. (proposed by marcfehling) https://github.com/dealii/dealii/pull/17571 #17570: Simplify typos workflow. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/17570 #17569: Allow to place FEFaceEvaluation objects in std::vector (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/17569 #17567: Create new string when demangling stacktraces (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/17567 #17566: Add get_mpi_communicator() to concept vector_space_vector (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/17566 #17564: Bump crate-ci/typos from 1.19.0 to 1.23.6 (proposed by dependabot[bot]; merged) https://github.com/dealii/dealii/pull/17564 #17561: Remove unused function (proposed by peterrum) https://github.com/dealii/dealii/pull/17561 #17560: Check for Fortran again (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/17560 #17559: Outsource building documentation into separate github workflow. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/17559 #17558: [9.6] Tpetra: Fix is_vector_space_vector check with complex values (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/17558 #17557: Use doxygen-awesome template for the documentation (proposed by pcafrica) https://github.com/dealii/dealii/pull/17557 #17555: fixed (void) in grid_tools.cc (proposed by mahdi1226; merged) https://github.com/dealii/dealii/pull/17555 #17554: Tpetra: Fix is_vector_space_vector check with complex values (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/17554 #17553: Enable cubic simplex output by DataOut (proposed by peterrum) https://github.com/dealii/dealii/pull/17553 #17552: Always use Kokkos::abort when it's noreturn (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/17552 #17551: Deprecate get_communicator() in favor of get_mpi_communicator(). (proposed by drwells; merged) https://github.com/dealii/dealii/pull/17551 #17550: Generalize MappingFE::compute_mapping_support_points() (proposed by peterrum) https://github.com/dealii/dealii/pull/17550 #17549: FESystem: Compare for domination by component instead of base element (proposed by mkghadban; merged) https://github.com/dealii/dealii/pull/17549 #17548: Fix some unused warnings. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/17548 #17547: SolverGMRES: Implement optimized orthogonalization also for dealii::Vector (proposed by kronbichler) https://github.com/dealii/dealii/pull/17547 #17546: Fix typo: residuum -> residual (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/17546 #17545: MPI sum: Do not invoke MPI function for MPI_COMM_SELF (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/17545 #17543: removed (void) occurrences from source/fe/fe_face.cc (proposed by npcantrell; merged) https://github.com/dealii/dealii/pull/17543 #17542: Consolidate two Utilities::MPI::broadcast() functions. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/17542 #17541: Improve our 32-bit vs 64-bit PETSc documentation. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/17541 #17539: Drop support for p4est versions older than 2.2. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/17539 #17538: Fix compiling SolutionTransfer with complex values (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/17538 #17537: fix compilation warning (unused arg) (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/17537 #17534: Get rid of some more reinterpret_casts. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/17534 #17532: Update some uses of [[maybe unused]] (proposed by gassmoeller; merged) https://github.com/dealii/dealii/pull/17532 #17531: Fix a typo test. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/17531 #17530: Portable MatrixFree: use if constexpr for hanging nodes implementation (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/17530 #17529: Improve an error message. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17529 #17528: Add a note to step-86. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17528 #17525: Support multiple components in `Portable::MatrixFree` (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/17525 #17524: Assert: release mode fixes: constexpr context, disable warnings in release mode (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/17524 #17520: Assert correction for issue #17450 (proposed by OresteMarquis; merged) https://github.com/dealii/dealii/pull/17520 #17519: Change a variable name in Assert(). (proposed by drwells; merged) https://github.com/dealii/dealii/pull/17519 #17518: Remove a lot of reinterpret_casts. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/17518 #17517: step-37: use MatrixFreeTools::compute_diagonal() (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/17517 #17516: port parallel_for() to taskflow (proposed by tjhei) https://github.com/dealii/dealii/pull/17516 #17515: Consistently use std::uncaught_exceptions(). (proposed by drwells; merged) https://github.com/dealii/dealii/pull/17515 #17514: cleanup maybe-unused in fe.cc (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/17514 #17513: Adolc/Symengine: always instantiate complex valued variants (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/17513 #17512: Fix undefined behavior when advancing nullptr (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/17512 #17504: Replaced void cast with maybe_unused (proposed by Sanjeeb-Poudel; merged) https://github.com/dealii/dealii/pull/17504 #17503: Remove void cast mpi (proposed by PapaKwansa; merged) https://github.com/dealii/dealii/pull/17503 #17501: Use `[[maybe_unused]]` instead of void cast (proposed by farriscr18; merged) https://github.com/dealii/dealii/pull/17501 #17500: Retire DEAL_II_COMPILE_EXAMPLES. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/17500 #17497: Remove void casts and use `[[maybe_unused]]` instead (proposed by OresteMarquis; merged) https://github.com/dealii/dealii/pull/17497 #17487: Use `[[maybe_unused]]` instead of `(void)` cast (proposed by ChrisPec27; merged) https://github.com/dealii/dealii/pull/17487 #17483: Add more C++ resources to step-1. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17483 #17474: Remove CUDAWrappers, related documentation and macros (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/17474 #17461: Update step-49, step-50 and their diffs. (proposed by AE7TB99; merged) https://github.com/dealii/dealii/pull/17461 #17383: Add clear() and Tvmult() for SparseVanka (proposed by chaycha; merged) https://github.com/dealii/dealii/pull/17383 #15706: Merge `SolutionTransfer` and `p::d::SolutionTransfer` (proposed by pcafrica; merged) https://github.com/dealii/dealii/pull/15706 ## And this is a list of recently opened or closed discussions: #17586: Adjust all FiniteElement::has_*() functions for FE_Nothing. (opened) https://github.com/dealii/dealii/issues/17586 #17583: Update ubuntu versions on github runners. (opened) https://github.com/dealii/dealii/issues/17583 #17573: Regression tester regressed 855fbc (opened and closed) https://github.com/dealii/dealii/issues/17573 #17568: Regression tester regressed 7ffd2d (opened and closed) https://github.com/dealii/dealii/issues/17568 #17565: Significant delay with deal.II exceptions on MacOS (opened and closed) https://github.com/dealii/dealii/issues/17565 #17563: FEFaceEvaluation cannot be inserted into a std::vector (opened and closed) https://github.com/dealii/dealii/issues/17563 #17562: Regression tester regressed 326266 (opened and closed) https://github.com/dealii/dealii/issues/17562 #17556: Regression tester regressed 71cca2 (opened and closed) https://github.com/dealii/dealii/issues/17556 #17544: Regression tester regressed 19f554 (opened and closed) https://github.com/dealii/dealii/issues/17544 #17540: Regression tester regressed cbb3f8 (opened and closed) https://github.com/dealii/dealii/issues/17540 #17536: SolutionTransfer complex errors (opened and closed) https://github.com/dealii/dealii/issues/17536 #17535: Ensure 'Function constant' in ParsedFunction is a constant, not an expression. (opened) https://github.com/dealii/dealii/issues/17535 #17533: Add table of content to tutorial page and glossary (opened) https://github.com/dealii/dealii/issues/17533 #17527: step-86: Provide guidance to what time stepping methods and error control approaches to use. (opened) https://github.com/dealii/dealii/issues/17527 #17526: Teach PETScWrappers::TimeStepper that a problem is linear. (opened) https://github.com/dealii/dealii/issues/17526 #17523: Regression tester regressed 3934f0 (opened and closed) https://github.com/dealii/dealii/issues/17523 #17521: compare_for_domination() assertion error when using FESystems with different number of base elements (opened and closed) https://github.com/dealii/dealii/issues/17521 #17450: FE_NedelecSZ are not compatible with VectorTools::interpolate (closed) https://github.com/dealii/dealii/issues/17450 #17249: In the tutorials, put 'using namespace dealii' into the StepXX namespace. (closed) https://github.com/dealii/dealii/issues/17249 #15763: issue in building deal.ll (closed) https://github.com/dealii/dealii/issues/15763 #15760: Unify interface of p::d::SolutionTransfer and SolutionTransfer (closed) https://github.com/dealii/dealii/issues/15760 #15703: `p::d::SolutionTransfer` for (de)serializing serial triangulations (closed) https://github.com/dealii/dealii/issues/15703 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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