Hello everyone! This is deal.II newsletter #303. 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: #17904: Fix nightly rocm tests (proposed by Rombur) https://github.com/dealii/dealii/pull/17904 #17902: disable randomly hanging lazy_04 test (proposed by tjhei) https://github.com/dealii/dealii/pull/17902 #17901: Bump crate-ci/typos from 1.27.3 to 1.28.1 (proposed by dependabot[bot]) https://github.com/dealii/dealii/pull/17901 #17900: clarify omit_zeroing_entries (proposed by tjhei) https://github.com/dealii/dealii/pull/17900 #17899: Add another barrier in MatrixFreeTools::compute_diagonal() (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/17899 #17897: Modernize `dealii::Rol::VectorAdaptor` to use `ROL::Ptr`. (proposed by marcfehling) https://github.com/dealii/dealii/pull/17897 #17896: parallel::distributed::Triangulation: should we clarify clear() method? (proposed by kronbichler) https://github.com/dealii/dealii/pull/17896 #17895: MemorySpace data: Also swap sm pointer (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/17895 #17894: add team barriers to CellAction in matrix_free/tools.h (proposed by YiminJin; merged) https://github.com/dealii/dealii/pull/17894 #17893: Add pre-commit config and CI job (proposed by jpthiele; merged) https://github.com/dealii/dealii/pull/17893 #17892: Cleanup doxygen defines (proposed by drwells) https://github.com/dealii/dealii/pull/17892 #17891: Make a test more comprehensive (proposed by kronbichler) https://github.com/dealii/dealii/pull/17891 #17890: Fix some changelog entries. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/17890 #17889: Remove COMPONENT_EXAMPLES from linux workflow. (proposed by marcfehling; merged) https://github.com/dealii/dealii/pull/17889 #17888: Portable MatrixFree: Export variable for n_q_points (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/17888 #17887: Disable CGAL warning (proposed by peterrum) https://github.com/dealii/dealii/pull/17887 #17886: Add assert (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/17886 #17885: Fix warning (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/17885 #17884: Rename FIV::normal() to normal_vector() and introduce FIV::quadrature_point() (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/17884 #17883: Update the usage of MPIEXEC_EXECUTABLE/MPIEXEC (proposed by peterrum; merged) https://github.com/dealii/dealii/pull/17883 #17882: Explain an otherwise unreadable condition. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17882 #17881: add ci script for arm docker build (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/17881 #17880: Fix an obviously wrong comment. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17880 #17879: Tutorial matrix-free CutFEM/DG (proposed by bergbauer) https://github.com/dealii/dealii/pull/17879 #17878: Const correctness of NonMatching::MappingInfo in FEPointEvalaution (proposed by bergbauer; merged) https://github.com/dealii/dealii/pull/17878 #17877: Require hypre to run step-40 in the CI (proposed by Rombur; merged) https://github.com/dealii/dealii/pull/17877 #17876: Manifolds: make the documentation consistent with the 'new' scheme. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/17876 #17875: Document the choice of 16 neighbors. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/17875 #17874: [9.6.1] Cherry-pick bug fixes (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/17874 #17873: Implement FE dof coupling support for Q_iso_Q1 sparsity patterns (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/17873 #17872: Fix get_communicator_by_value for SUNDIALS 7 (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/17872 #17871: Fix bug in MatrixFreeTools::compute_diagonal for FE_Nothing (proposed by sebproell; merged) https://github.com/dealii/dealii/pull/17871 #17870: If possible, let cmake set -Werror automatically. (proposed by bangerth) https://github.com/dealii/dealii/pull/17870 #17868: Use std::function<auto (args...) -> rettype>. (proposed by bangerth) https://github.com/dealii/dealii/pull/17868 #17867: Require hypre to run some tests (proposed by Rombur; merged) https://github.com/dealii/dealii/pull/17867 #17866: Extend read_vtk to add FIELD data (Previously PR #10649) (proposed by vaishnavi-kale) https://github.com/dealii/dealii/pull/17866 #17865: enable MemorySpace in GMG transfer (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/17865 #17864: Better document a case about boundary ids for p::d::T. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17864 #17863: Portable MatrixFree: Some cleanup for fe_degree+1 != n_q_points_1d (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/17863 #17862: Minor cleanup. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17862 #17859: Deprecate the ConsensusAlgorithms::Payload class. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17859 #17858: Add MGTwoLevelTransfer and MGTransferMF to doxygen group 'mg' (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/17858 #17857: Bump crate-ci/typos from 1.27.0 to 1.27.3 (proposed by dependabot[bot]; merged) https://github.com/dealii/dealii/pull/17857 #17856: Be less verbose in cmake. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17856 #17855: No longer base ConsensusAlgorithmsPayload on MPI::ConsensusAlgorithms::Process. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17855 #17854: Add another resource for people learning how to debug codes. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17854 #17853: Fix initialization of partitioners in two performance tests (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/17853 #17852: Preconditioners: Make access to vector pointers more uniform (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/17852 #17851: step-59: Do not adjust ghost ranges (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/17851 #17850: Fix types in parallel.h for TBB. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17850 #17849: Adjust return type of eigenvectors(SymmetricTensor). (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17849 #17848: Add the step-93 tutorial program (proposed by Sam0h51) https://github.com/dealii/dealii/pull/17848 #17847: Move ComputeIndexOwner into mpi.cc. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17847 #17846: Improve a p::fd::T exception message. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/17846 #17845: Remove the last calls of an internal MPI implementation. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17845 #17844: fix iterator type in parallel::transform() (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/17844 #17842: Add a test. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17842 #17797: Enable batched matrix-vector product (proposed by dominiktassilostill; merged) https://github.com/dealii/dealii/pull/17797 #17793: Try using interprocedural/link-time optimization. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/17793 ## And this is a list of recently opened or closed discussions: #17903: Regression tester regressed aa53ff (opened and closed) https://github.com/dealii/dealii/issues/17903 #17898: Integration of t8code into deal.II (opened) https://github.com/dealii/dealii/issues/17898 #17869: Runtime error in step-64 (opened and closed) https://github.com/dealii/dealii/issues/17869 #17861: hp DoFHandler duplicates dofs on edges in 3D. (opened) https://github.com/dealii/dealii/issues/17861 #17860: Feature: pre-commit config (opened) https://github.com/dealii/dealii/issues/17860 #17841: Regression tester regressed 61beb7 (closed) https://github.com/dealii/dealii/issues/17841 #17810: get_manifold() policy (closed) https://github.com/dealii/dealii/issues/17810 #17723: Build fails: sundials/n_vector.templates.h:756:18: error: const_cast to 'SUNComm' (aka 'int'), which is not a reference, pointer-to-object, or pointer-to-data-member (closed) https://github.com/dealii/dealii/issues/17723 #17703: Break out a part of the ComputeIndexOwner::ConsensusAlgorithmsPayload functionality. (closed) https://github.com/dealii/dealii/issues/17703 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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