Hello everyone! This is deal.II newsletter #45. 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: #7098: Add missing ParticleAccessor::serialize function (proposed by bangerth) https://github.com/dealii/dealii/pull/7098 #7097: Use std::conditional instead of a switch class. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/7097 #7096: add asserts and comments in MPI::Partitioner (proposed by davydden; merged) https://github.com/dealii/dealii/pull/7096 #7094: Use unique_ptr in CUDAWrappers::SparseMatrix (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/7094 #7091: Matrixfree vectorization mask (proposed by schoeder) https://github.com/dealii/dealii/pull/7091 #7090: ParameterHandler get from subsection (proposed by AlexanderBlank; merged) https://github.com/dealii/dealii/pull/7090 #7089: Add table iterators (proposed by drwells; merged) https://github.com/dealii/dealii/pull/7089 #7088: Add assertions in MatrixFree DoFInfo to avoid invalid memory access (proposed by kronbichler) https://github.com/dealii/dealii/pull/7088 #7087: Add some discussion about extractors. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/7087 #7086: Replace Utilities::fixed_int_power by Utilities::pow (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/7086 #7085: Avoid deprecated fixed_int_power (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/7085 #7084: CUDAWrappers::PreconditionIC and CUDAWrappers::PreconditionILU (proposed by masterleinad) https://github.com/dealii/dealii/pull/7084 #7083: AssertNothrowCUDA and AssertNothrowCusparse (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/7083 #7082: Some improvements for CUDAWrappers::SparseMatrix (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/7082 #7081: AffineConstraints modernization (proposed by drwells; merged) https://github.com/dealii/dealii/pull/7081 #7080: Ensure initlog() is used in tests/manifold and tests/mappings. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/7080 #7079: Fix some duplicated branch warnings. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/7079 #7078: Fix some sign comparison warnings. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/7078 #7076: Reference the 'coarse mesh' glossary entry. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/7076 #7075: Fix using the remaining iterative solvers with CUDAWrappers::Vector (proposed by masterleinad) https://github.com/dealii/dealii/pull/7075 #7073: Fix links to the trilinos website. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/7073 #7072: Fix CUDAWrappers::Vector copy assignment (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/7072 #7070: Document a problem with the FunctionParser class. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/7070 #7069: Fix wrong symbol in CUDAWrappers::Vector::print() (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/7069 #7068: Fix CUDAWrappers group documentation (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/7068 #7063: Avoid slicing when throwing in Assert (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/7063 #7062: Add a glossary entry for the term 'coarse mesh'. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/7062 #7061: Enable 'hp::DofHandler' for 'p::d::SolutionTransfer'. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/7061 #7042: Consider periodic neighbors during grid refinement in serial (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/7042 #7032: Add interleaved dof storage for DG to MatrixFree (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/7032 #6984: add a FiniteSizeHistory class to store objects (proposed by davydden; merged) https://github.com/dealii/dealii/pull/6984 #6863: Add a grid for the flow past a cylinder benchmark. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6863 ## And this is a list of recently opened or closed discussions: #7099: Testsuite CUDA 9 (opened) https://github.com/dealii/dealii/issues/7099 #7095: bug in Utilities::MPI::Partitioner? (opened and closed) https://github.com/dealii/dealii/issues/7095 #7093: Bug in Particle::load()? (opened) https://github.com/dealii/dealii/issues/7093 #7092: FEEnriched::num_colors not initialized (opened) https://github.com/dealii/dealii/issues/7092 #7077: Fix some poorly justified equations in step-46 (opened) https://github.com/dealii/dealii/issues/7077 #7074: boost 1.68.0 fails serialization configure check (opened) https://github.com/dealii/dealii/issues/7074 #7071: Support erf in FunctionParser (opened) https://github.com/dealii/dealii/issues/7071 #7048: Don't throw exceptions by reference (closed) https://github.com/dealii/dealii/issues/7048 #7041: improvement to periodic BC (closed) https://github.com/dealii/dealii/issues/7041 #6675: Add the grid from #6674 to GridGenerator (closed) https://github.com/dealii/dealii/issues/6675 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! 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