deal.II Newsletter #356

[Rene Gassmoeller]

Hello everyone!

This is deal.II newsletter #356.
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:

#19774: Disable extra diagnostics to suppress warning. (proposed by marcfehling)
#19773: Bump https://github.com/crate-ci/typos from v1.46.2 to 1.46.3 (proposed by dependabot[bot]; merged)
#19771: Remove supports_dof_handler_vector (proposed by masterleinad)
#19770: Provide an container containing reference cells of a certain dimension (proposed by AndSte01; merged)
#19769: CellData: use std_cxx26::inplace_vector. (proposed by drwells)
#19768: VectorTools: preallocate some more arrays. (proposed by drwells; merged)
#19767: Fix assert for Trilinos pre 14 (proposed by gassmoeller)
#19765: Arkode: add additional output for sub-test 2 of the Butcher tables test for the old SUNDIALS versions (proposed by vovannikov; merged)
#19764: Fix some typos discovered with codespell (proposed by masterleinad; merged)
#19763: Fix clang-tidy findings with clang++-23 (proposed by masterleinad; merged)
#19761: Do not export std::printf and std::snprintf. (proposed by bangerth; merged)
#19760: Avoid using std::printf() in step-33. (proposed by bangerth; merged)
#19759: MappingQ etc.: avoid allocating support points. (proposed by drwells; merged)
#19758: Also update copyright in files under module/. (proposed by bangerth; merged)
#19757: TriaLevel: store cell levels and indices independently. (proposed by drwells)
#19756: FilteredIterator: share predicates. (proposed by drwells; merged)
#19755: CellId: update the binary encoding to work with Pyramids. (proposed by drwells)
#19754: Portable::MatrixFree cell loop missing fences (proposed by tjhei; merged)
#19753: Add a constant for the maximum number of levels. (proposed by drwells; merged)
#19752: CellIDTranslator: remove some intermediate steps. (proposed by drwells; merged)
#19751: CellId: fix some types. (proposed by drwells; merged)
#19750: Update copyright years (proposed by blaisb; merged)
#19749: Use correct condition within for loop when iterating over children. (proposed by AndSte01; merged)
#19748: doc: fix grammar mistake (proposed by tjhei; merged)
#19747: Portable::MatrixFree: add missing fence() instructions (proposed by tjhei; merged)
#19746: PreconditionChebyshev: add Kokkos fence (proposed by tjhei; merged)
#19745: Arkode: add additional Butcher test output for SUNDIALS < 7.3 (proposed by vovannikov; merged)
#19743: mpi/step-27: make tests more robust. (proposed by drwells; merged)
#19742: inplace_vector: add a missing header. (proposed by drwells; merged)
#19740: Add a lot of potentially missing complex includes. (proposed by drwells; merged)
#19738: CellIDTranslator: remove some GeometryInfos. (proposed by drwells; merged)
#19737: FESeries tests: clean up the output. (proposed by drwells; merged)
#19736: Tests: add some references to range-for loops. (proposed by drwells; merged)
#19735: CellIDTranslator: don't make assumptions about CellId's binary encoding. (proposed by drwells; merged)
#19734: add new PMF Stokes test (proposed by tjhei)
#19733: Fix Tpetra sparse matrix wont compress if one rank doesnt own entries (proposed by gassmoeller; merged)
#19732: Fix bug in FEEvaluation::distribute_local_to_global (proposed by kronbichler; merged)
#19731: Bump SUNDIALS version in the guard (proposed by vovannikov; merged)
#19730: Add a missing header file. (proposed by bangerth)
#19727: ExcNumberNotFinite: make it a template. (proposed by drwells; merged)
#19726: Do not use A.residual() in SolverFIRE. (proposed by bangerth; merged)
#19725: Arkode: fix fallback to ARKStepSetTableNum for the Butcher tables test (proposed by vovannikov; merged)
#19724: Arkode: add wrapper for ERKStep module (proposed by vovannikov)
#19723: Replace N^2 algorithm by N*log(N) algorithm in FEInterfaceValues. (proposed by bangerth; merged)
#19704: Add our own implementation of std::inplace_vector. (proposed by drwells; merged)
#19701: Triangulation: pick array strides by examining the present ReferenceCells. (proposed by drwells; merged)
#19697: Some updates to the documentation of PreconditionBlock*. (proposed by bangerth; merged)
#19684: Add tests for the Python tria accessor wrappers. (proposed by bangerth; merged)
#19667: Nodal basis for wedges (proposed by dominiktassilostill; merged)
#19542: Optimizing Tpetra vector element-wise access (proposed by gassmoeller; merged)

And this is a list of recently opened or closed discussions:

#19772 Update `MappingQCache`'s API and data types (opened)
#19766 Regression tester regressed 0664a5 (opened and closed)
#19762 Clean up `TriaAccessor::level_index()` a bit (opened)
#19744 Regression tester regressed 1e35a0 (opened and closed)
#19741 Regression tester regressed cbe48e (opened)
#19739 Compilation failure with C++23 (opened and closed)
#19729 ARKodeSetOrder not declared. (opened and closed)
#19728 deal.II Release 9.8 (opened)
#19722 gcc16 warnings in matrix_free/evaluation_kernels_hanging_nodes.h (opened)
#19712 Regression tester regressed b68ded (closed)
#19709 Regression tester regressed 917538 (closed)
#19345 SolverFIRE uses A.residual(). (closed)
#19198 Wrap `std::inplace_vector` (closed)
#18285 Portable::MatrixFree multiple DoFHandler support (closed)

A list of all major changes since the last release can be found at this website.

Thanks for being part of the community!

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