Hello everyone! This is deal.II newsletter #15. 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: #5673: Fix Intel 18 warnings in OpenCASCADE wrapper (proposed by masterleinad) https://github.com/dealii/dealii/pull/5673 #5672: Update test output for grid/project_to_object_01 (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/5672 #5671: Move deleted operators out of the private: section of a class. (proposed by bangerth) https://github.com/dealii/dealii/pull/5671 #5670: Update sparse matrix mmult with DynamicSparsityPattern::compute_mmult_pattern(..) (proposed by ExtremOPS) https://github.com/dealii/dealii/pull/5670 #5669: disable unstable arclength_boundary_02 test (proposed by davydden; merged) https://github.com/dealii/dealii/pull/5669 #5668: Fix the way H-div seminorm is computed (proposed by eldarkh) https://github.com/dealii/dealii/pull/5668 #5665: implement missing TrilinosWrappers::SparsityPattern::copy_from() (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/5665 #5663: Fix the grammar of a few doc strings. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/5663 #5661: Add 64-bit output variant for serialization/hp_dof_handler_01 (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/5661 #5660: Increase precision in arpack/parpack_advection_diffusion_petsc (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/5660 #5659: add LA::d::BlockVector::norm_sqr() and LA::d::Vector::norm_sqr() (proposed by davydden; merged) https://github.com/dealii/dealii/pull/5659 #5658: Simplex quadratures and their utilities. (proposed by luca-heltai) https://github.com/dealii/dealii/pull/5658 #5656: support 64bit BLAS (proposed by davydden; merged) https://github.com/dealii/dealii/pull/5656 #5655: Add PETScWrappers::MatrixBase::mmult (proposed by Jie-Cheng) https://github.com/dealii/dealii/pull/5655 #5654: Update NumberCache after adding periodicity to a p::d::Triangulation (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/5654 #5652: Change LAPACKFullMatrix::size_type to unsigned int. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/5652 #5651: add a function to remove row and column from LAPACKFullMatrix (proposed by davydden; merged) https://github.com/dealii/dealii/pull/5651 #5650: doc: fix bracket in LATEX documentation (proposed by davydden; merged) https://github.com/dealii/dealii/pull/5650 #5649: CMake: Also print GMSH_EXE in detailed.log (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/5649 #5648: use find_program to find GMSH (proposed by davydden; merged) https://github.com/dealii/dealii/pull/5648 #5646: Improve move constructor tests (proposed by Rombur; merged) https://github.com/dealii/dealii/pull/5646 #5645: prevent GMSH from searching in <prefix>/include for each <prefix> in ... (proposed by davydden) https://github.com/dealii/dealii/pull/5645 #5641: CMake: cache TestBoostBug, clean up cached variables (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/5641 #5640: Add move constructors (proposed by Rombur; merged) https://github.com/dealii/dealii/pull/5640 #5639: Add a comment and PETSc KSP and PC objects. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/5639 #5638: Fix overwriting of unity files in reconfiguration. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/5638 #5637: Remove some more DEAL_II_WITH_CXX11 references. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/5637 #5636: Remove DEAL_II_WITH_CXX11 guards (proposed by Rombur; merged) https://github.com/dealii/dealii/pull/5636 #5635: Increase stability of gmsh/create_tria_01 (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/5635 #5634: Further improve manifold documentation (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/5634 #5633: Some grammar improvements. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/5633 #5632: Multiply sparsity pattern (proposed by ExtremOPS; merged) https://github.com/dealii/dealii/pull/5632 #5631: Extend LAPACKFullMatrix and Vector to keep the data upon resizing and add rank-1 update (proposed by davydden; merged) https://github.com/dealii/dealii/pull/5631 #5630: Add a move constructor for VectorMemory::Pointer. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/5630 #5629: Fix fe_field_function_03 (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/5629 #5628: Let GrowingVectorMemory work with std::vector. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/5628 #5626: Update manifold documentation in a few places. (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/5626 #5625: Fix some failing tests (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/5625 #5620: Fix documentation (proposed by cpraveen; merged) https://github.com/dealii/dealii/pull/5620 #5619: document PETScWrappers::Vector constructors better (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/5619 #5618: Make write_gnuplot_dof_support_point_info more robust (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/5618 #5616: improve documentation of p::d::SolutionTransfer when used with LA::d:... (proposed by davydden; merged) https://github.com/dealii/dealii/pull/5616 #5614: update FE_Enriched reference paper (proposed by davydden; merged) https://github.com/dealii/dealii/pull/5614 #5613: Get rid of coin flip strategy in p::s::Tria (proposed by agrayver; merged) https://github.com/dealii/dealii/pull/5613 #5612: Fix treatment of periodic faces in communicate_locally_moved_vertices (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/5612 #5611: Add check if sundials has idas (proposed by juan42) https://github.com/dealii/dealii/pull/5611 #5610: Add Jupyter Notebook (proposed by Rombur; merged) https://github.com/dealii/dealii/pull/5610 #5609: Fix a file creation check. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/5609 #5608: Convert some more tests to use initlog. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/5608 #5607: Fix some things that the clang static analyzer found. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/5607 #5606: OpenCASCADE now works also in spacedim = 2 (proposed by luca-heltai; merged) https://github.com/dealii/dealii/pull/5606 #5605: Opencascade now works for spacedim = 2. (proposed by luca-heltai) https://github.com/dealii/dealii/pull/5605 #5604: Make DoFTools::extract_hanging_node_dofs for p::d/s::Triangualations (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/5604 #5603: Opencascade now works for spacedim == 2. (proposed by luca-heltai) https://github.com/dealii/dealii/pull/5603 #5601: Extend VectorTools::project_boundary_values() to complex-valued functions. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/5601 #5596: Update documentation of a function. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/5596 #5583: Find GMSH executable. (proposed by luca-heltai; merged) https://github.com/dealii/dealii/pull/5583 #5572: Detect BOOST bug while configuring (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/5572 #5562: Optimize spherical manifold get_new_point into get_new_points (proposed by gassmoeller; merged) https://github.com/dealii/dealii/pull/5562 #5411: Make fe_field_function compute::point locations use the gridtools version (proposed by GivAlz; merged) https://github.com/dealii/dealii/pull/5411 #5386: Replace broken mesh smoothing with Laplacian (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/5386 ## And this is a list of recently opened or closed discussions: #5667: Support for face integrals in DG (opened) https://github.com/dealii/dealii/issues/5667 #5666: MatrixFree & vector valued FE : block-wise structure on the input/output vectors is not allowed (opened) https://github.com/dealii/dealii/issues/5666 #5664: Failing opencascade/arclength_boundary_02 (opened) https://github.com/dealii/dealii/issues/5664 #5662: Inconsistent integral types for sizes in Matrix classes. (opened) https://github.com/dealii/dealii/issues/5662 #5657: Fortran name mangling (opened) https://github.com/dealii/dealii/issues/5657 #5653: Set up a tester with 64bit indices (opened) https://github.com/dealii/dealii/issues/5653 #5647: Need PETScWrappers::MPI::SparseMatrix::mmult that is similar to TrilinosWrappers::SparseMatrix::mmult and SparseMatrix::mmult (opened) https://github.com/dealii/dealii/issues/5647 #5644: GMSH config is broken (opened and closed) https://github.com/dealii/dealii/issues/5644 #5643: GMSH dependency is not documented installation instructions (opened) https://github.com/dealii/dealii/issues/5643 #5642: distribute_dofs() throwing error when called on a externally read parallel triangulation with periodic bnd (opened and closed) https://github.com/dealii/dealii/issues/5642 #5627: VectorView is deprecated but ArrayView does not provide the same functionality (opened) https://github.com/dealii/dealii/issues/5627 #5624: TrilinosWrappers::MPI::Vector::reinit called with vector_writable changes behavior (opened) https://github.com/dealii/dealii/issues/5624 #5623: Creating a PETScWrappers::MPI::Vector from a PETSc Vec (opened and closed) https://github.com/dealii/dealii/issues/5623 #5622: Possible bug in DoFRenumbering::hierarchical for p::s::Triangulation (opened) https://github.com/dealii/dealii/issues/5622 #5621: Compatibility of VectorMemory<> with std::vector (opened and closed) https://github.com/dealii/dealii/issues/5621 #5617: avoid writing into non-owned DoFs in p::d::SolutionTransfer (opened) https://github.com/dealii/dealii/issues/5617 #5615: p::d::SolutionTransfer and LA::d::Vector (opened and closed) https://github.com/dealii/dealii/issues/5615 #5595: Non-contiguous DoFs distribution in p::s::Tria (closed) https://github.com/dealii/dealii/issues/5595 #5576: Possible bug in petsc_vector_base (closed) https://github.com/dealii/dealii/issues/5576 #5574: Do hanging node constraints over periodic boundaries work? (closed) https://github.com/dealii/dealii/issues/5574 #5573: Jupyter notebook (closed) https://github.com/dealii/dealii/issues/5573 #5262: Boost 1.65.1 serialization issues (closed) https://github.com/dealii/dealii/issues/5262 #5018: 64bit indices in BLAS/LAPACK (closed) https://github.com/dealii/dealii/issues/5018 #3078: locally_owned_dofs belong to different block do not equal after DoFRenumbering::subdomain_wise and DoFRenumbering::block_wise (closed) https://github.com/dealii/dealii/issues/3078 #1537: Get rid of MappingQ1 (closed) https://github.com/dealii/dealii/issues/1537 A list of all major changes since the last release can be found at https://www.dealii.org/developer/doxygen/deal.II/changes_after_8_5_0.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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