Hello everyone! This is deal.II newsletter #179. 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: #12703: Require GINKGO 1.4.0 (proposed by gfcas) https://github.com/dealii/dealii/pull/12703 #12702: Fix HangingNodes::setup_constraints() for multiple components (proposed by peterrum) https://github.com/dealii/dealii/pull/12702 #12700: Fix typename number (proposed by gfcas; merged) https://github.com/dealii/dealii/pull/12700 #12699: Enhance VectorTools::project (proposed by gfcas) https://github.com/dealii/dealii/pull/12699 #12698: AssertDimension macro in examples (proposed by gfcas; merged) https://github.com/dealii/dealii/pull/12698 #12697: Add tolerance to subdivided_cylinder generator (proposed by blaisb; merged) https://github.com/dealii/dealii/pull/12697 #12696: Extend MGTwoLevelTransfer::reinit_polynomial_transfer() so that it works on any refinement level without HN (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/12696 #12695: Do not store unnecessary variables. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/12695 #12694: Make sure that copying exceptions doesn't imply dropping the backtrace. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/12694 #12692: Add Tensor::to_array(). (proposed by drwells) https://github.com/dealii/dealii/pull/12692 #12691: Deprecate ArrayView functionality for tensors. (proposed by bangerth) https://github.com/dealii/dealii/pull/12691 #12690: Implement multiway DoF identities on vertices/lines/quads. (proposed by bangerth) https://github.com/dealii/dealii/pull/12690 #12688: Unify spelling 2. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/12688 #12687: Sort member functions in .cc file. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/12687 #12685: Avoid the use of ArrayView for Tensors in MPI::sum(). (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/12685 #12684: Introduce ParticleAccessor::set_properties() taking a Tensor. (proposed by bangerth) https://github.com/dealii/dealii/pull/12684 #12683: Unify spelling. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/12683 #12682: Group member functions in hp::FECollection for doxygen. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/12682 #12681: Allow for the default construction of 1d face iterators. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/12681 #12680: Prevent excess timer output. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/12680 #12678: Typo fix in step-38 intro.dox (proposed by amartinhuertas; merged) https://github.com/dealii/dealii/pull/12678 #12677: tria.cc: Make exception and comment easier to read (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/12677 #12676: Remove special treatment of boundary cells (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/12676 #12675: Avoid serializing lines on TriaFaces twice. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/12675 #12674: Make TriaAccessor::set_*_boundary() const. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/12674 #12673: Remove an unused member variable. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/12673 #12672: Use Mapping::get_vertices(). (proposed by drwells; merged) https://github.com/dealii/dealii/pull/12672 #12671: Mark some things as protected. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/12671 #12670: Avoid copying some Quadrature rules in FESystem. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/12670 #12669: Fix p:f:T for manifolds (proposed by peterrum) https://github.com/dealii/dealii/pull/12669 #12667: Fix documentation (proposed by zjiaqi2018; merged) https://github.com/dealii/dealii/pull/12667 #12666: Fix compilation with GCC 5.4. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/12666 #12664: Unghost matrix diagonals (proposed by drwells) https://github.com/dealii/dealii/pull/12664 #12661: Update documentation of FE_Q constructor. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/12661 #12634: Fix MGTransferMatrixFree plain_copy bug (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/12634 #12609: Fix AlignedVector memory management after replicate_across_communicator() (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/12609 #12601: Deprecated autopartition parameter in parallel::DistributedTriangulationBase::load() (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/12601 #12546: fix: Updated dotgdbinit to work with version 9.3 (proposed by TLJB; merged) https://github.com/dealii/dealii/pull/12546 #12514: Add class determining how cells/faces relate to a level set function (proposed by simonsticko; merged) https://github.com/dealii/dealii/pull/12514 #12493: Enable MGTwoLevelTransfer::reinit_geometric_transfer() for refinement levels (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/12493 ## And this is a list of recently opened or closed discussions: #12701: crash in MatrixFreeFunctions::HangingNodes<3>::setup_constraints (opened) https://github.com/dealii/dealii/issues/12701 #12693: AssertThrow results in exceptions that don't have a stacktrace (opened and closed) https://github.com/dealii/dealii/issues/12693 #12689: manifold_id set wrong for simplices (opened) https://github.com/dealii/dealii/issues/12689 #12686: Disallow ArrayView for Tensor objects (opened) https://github.com/dealii/dealii/issues/12686 #12679: Can't call default constructor of DoFHandler<1,spacedim>::face_iterator (opened and closed) https://github.com/dealii/dealii/issues/12679 #12668: `GridGenerator::subdivided_cyclinder()` should not use absolute thresholds. (opened and closed) https://github.com/dealii/dealii/issues/12668 #12665: fullydistributed triangulation made from description incl. manifolds results in disjoint faces across at subdomain borders (opened and closed) https://github.com/dealii/dealii/issues/12665 #12633: MGTransferMatrixFree Assert failure (closed) https://github.com/dealii/dealii/issues/12633 #12621: symmetric_tensor.templates.h (closed) https://github.com/dealii/dealii/issues/12621 #12608: Lower memory requirements in AlignedVector (closed) https://github.com/dealii/dealii/issues/12608 #12606: Replicated AlignedVector objects can't be moved (closed) https://github.com/dealii/dealii/issues/12606 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! 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