Hello everyone! This is deal.II newsletter #147. 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: #11449: Convert step-2 to a simplex test (proposed by peterrum) https://github.com/dealii/dealii/pull/11449 #11448: Added test for FENothing and FEQ constraints. (proposed by marcfehling) https://github.com/dealii/dealii/pull/11448 #11447: Utility grid generator function `hyper_line` for tests. (proposed by marcfehling) https://github.com/dealii/dealii/pull/11447 #11446: Update grid/cell_id_08 output. (proposed by marcfehling) https://github.com/dealii/dealii/pull/11446 #11445: Minor change to CellWeights exception handling. (proposed by marcfehling) https://github.com/dealii/dealii/pull/11445 #11444: Refactor the HDF5 abort code. (proposed by drwells) https://github.com/dealii/dealii/pull/11444 #11443: Make sure every particle always has a property pool associated with it. (proposed by bangerth) https://github.com/dealii/dealii/pull/11443 #11442: Make a test more verbose. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/11442 #11441: Avoid warning about unused variable in particle.h (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/11441 #11440: Avoid MPI calls in the HDF5 destructors when there is an exception - DataSet (proposed by dangars; merged) https://github.com/dealii/dealii/pull/11440 #11439: Fix warning due to boost (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11439 #11438: Fix boost include file. (proposed by luca-heltai; merged) https://github.com/dealii/dealii/pull/11438 #11437: Clean up FE_Nothing::get_name(). (proposed by drwells; merged) https://github.com/dealii/dealii/pull/11437 #11436: Add test for geometric global-coarsening multigrid (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11436 #11434: Rename file in test folder (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11434 #11433: Add test for p-multigrid (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11433 #11432: MatrixFreeTools::compute_diagonal() make class const (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11432 #11431: CMake: Fix Ginkgo linkage (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/11431 #11430: Better document FE_Nothing. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/11430 #11429: Generalize MGTwoLevelTransfer for simplex meshes (proposed by peterrum) https://github.com/dealii/dealii/pull/11429 #11428: FETools::get_projection_matrix for simplices (proposed by peterrum) https://github.com/dealii/dealii/pull/11428 #11427: Fix tests with output files with same name (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11427 #11426: Add utility functions to ReferenceCell namespace (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11426 #11425: Fix output of grid/cell_id_08 (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11425 #11424: Introduce ReferenceCell::compute_orientation and ::permute_according_orientation (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11424 #11423: Introduce ReferenceCell::unit_tangential_vectors() (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11423 #11422: Work on compute_embedding_matrices() for simplex (proposed by peterrum) https://github.com/dealii/dealii/pull/11422 #11421: Fix formatting (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11421 #11420: Test alternative path in QProjector (proposed by peterrum) https://github.com/dealii/dealii/pull/11420 #11419: Pyramid/wedge: diverse fixes (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11419 #11418: step-27: Updated to new interface. (proposed by marcfehling) https://github.com/dealii/dealii/pull/11418 #11417: CI: remove unnecessary OSX setup steps (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/11417 #11416: Simplex/pyramid/wedge: add DG test (proposed by peterrum) https://github.com/dealii/dealii/pull/11416 #11415: Ignore deprecated-volatile warning when disabling exta diagnostic (proposed by Rombur) https://github.com/dealii/dealii/pull/11415 #11414: Raviart-Thomas orientation and permutation issue (proposed by konsim83) https://github.com/dealii/dealii/pull/11414 #11413: Ginkgo Updates - 2nd try (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/11413 #11412: Silence unused parameter warning when building with C++17 (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/11412 #11411: make constructors of Table and AlignedVector explicit (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/11411 #11410: Revert "Merge pull request #11402 from pratikvn/fix-ginkgo-cmake" (proposed by Rombur; merged) https://github.com/dealii/dealii/pull/11410 #11409: Work on MatrixFreeTools::compute_matrix (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11409 #11408: MatrixFreeTools::compute_diagonal() for simplex grid (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11408 #11407: Remove n_q_points_face from fe_evaluation.h (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11407 #11406: FEFaceValues: use face_no to select quadrature rule (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11406 #11405: Implement FE_WedgeDGP and FE_PyramidDGP (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11405 #11404: GenericDoFsPerObject: fix formatting (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11404 #11403: FE_Nothing: pass reference-cell type to constructor (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11403 #11402: Update Ginkgo cmake detection and tests. (proposed by pratikvn; merged) https://github.com/dealii/dealii/pull/11402 #11401: MatrixFree: introduce FaceToCellTopology::face_type (proposed by peterrum) https://github.com/dealii/dealii/pull/11401 #11400: Use QCollection within MapptingInfo::initialize (proposed by peterrum) https://github.com/dealii/dealii/pull/11400 #11399: Remove compatibility code for GCC versions prior to 5.0. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/11399 #11398: Clarify a comment in class Particle. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/11398 #11397: Do not inspect an object that has been moved from. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/11397 #11396: Store reference to QuadratureDescriptor in FEEvaluationBaseData (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11396 #11395: Introduce SUNDIALS N_Vector module (proposed by sebproell) https://github.com/dealii/dealii/pull/11395 #11394: Simplify constructor of FEEvaluationBaseData (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11394 #11393: Added missing libraries to Ginkgo linking (proposed by nabw) https://github.com/dealii/dealii/pull/11393 #11392: Better document serialization functions. (proposed by bangerth) https://github.com/dealii/dealii/pull/11392 #11391: Prepare for storing particle locations in the PropertyPool. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/11391 #11390: Let Particle::get_(reference_)location() return by-value rather than reference (proposed by bangerth) https://github.com/dealii/dealii/pull/11390 #11389: GridGenerator::convert_hypercube_to_simplex_mesh(): manifold_id in 2D (proposed by eliasstudiert) https://github.com/dealii/dealii/pull/11389 #11388: Allow read access to data in Interpolated*Function (proposed by tjhei) https://github.com/dealii/dealii/pull/11388 #11387: MappingInfo: convert quadrature to face-quadrature rules (proposed by peterrum) https://github.com/dealii/dealii/pull/11387 #11386: Added missing header for boost 1.75.0. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/11386 #11385: CI: fix OSX cmake version 3.18 (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/11385 #11384: CMake-3.19 fixes (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/11384 #11383: Add a filter=output attribute to output files (proposed by tamiko) https://github.com/dealii/dealii/pull/11383 #11381: provide memory_consumption() for some Function* classes (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/11381 #11378: Link in the correct figure. (proposed by bangerth) https://github.com/dealii/dealii/pull/11378 #11377: Fix some typos regarding 'hexahedra' (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/11377 #11376: Clean up std::map usage in interpolate_boundary_values (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/11376 #11374: Add a particle test. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/11374 #11373: Add to the documentation of numbers::signaling_nan(). (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/11373 #11372: Generalize ShapeInfo::reinit (proposed by peterrum) https://github.com/dealii/dealii/pull/11372 #11370: Use function from simplex_grids.h (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11370 #11368: Remove temporary string objects in Utilities::(un)pack. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/11368 #11367: Add missing versions of VectorTools::interpolate_boundary_values for hp::MappingCollection (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11367 #11365: Added Triangulation::create_cell_iterator(). (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/11365 #11364: Added getter function for child_indices of CellId + CellId benchmark testcase (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/11364 #11363: Rename some member functions of PropertyPool, also member variables of Particle (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/11363 #11361: Enable FEFaceValues for wedges and pyramids (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/11361 #11339: Avoid MPI calls in the HDF5 destructors when there is an exception (proposed by dangars; merged) https://github.com/dealii/dealii/pull/11339 #11278: SUNDIALS: update ARKode to version 5.4.0 (proposed by sebproell; merged) https://github.com/dealii/dealii/pull/11278 #11259: Added instantiation for cases when dim < spacedim (proposed by malhartidke; merged) https://github.com/dealii/dealii/pull/11259 #11216: Consistency in using hp concatenation symbols. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/11216 #11201: Add GridGenerator::convert_hypercube_to_simplex_mesh (proposed by eliasstudiert; merged) https://github.com/dealii/dealii/pull/11201 #10764: Assign faces different quadrature rules (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/10764 ## And this is a list of recently opened or closed discussions: #11450: Handling of auxiliary vectors in matrix-free loops (opened) https://github.com/dealii/dealii/issues/11450 #11435: SUNDIALS interface. (opened) https://github.com/dealii/dealii/issues/11435 #11382: [CI] OSX on Github Actions fails (opened and closed) https://github.com/dealii/dealii/issues/11382 #11380: SUNDIALS: replace copy with N_Vector module (opened) https://github.com/dealii/dealii/issues/11380 #11379: boost 1.75.0 incompatibilty (opened and closed) https://github.com/dealii/dealii/issues/11379 #11375: Compress test output files? (opened and closed) https://github.com/dealii/dealii/issues/11375 #11362: CellId::get_cell() should have been a member function of the Triangulation class (closed) https://github.com/dealii/dealii/issues/11362 #11272: ENABLE_IF_SUPPORTED macro is incompatible with cmake-3.19 (closed) https://github.com/dealii/dealii/issues/11272 #10008: Compilation failure with current development version of ginkgo (closed) https://github.com/dealii/dealii/issues/10008 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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