deal.II Newsletter #192

[Rene Gassmoeller]

Hello everyone!

This is deal.II newsletter #192.
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:

#13004: Avoid dereferencing a past-the-end iterator (proposed by kronbichler)
#13003: Use pre-compiled code for CellwiseInverseMassMatrix (proposed by kronbichler; merged)
#13002: Fix and augment documentation. (proposed by bangerth; merged)
#13001: Introduce internal::VectorizedArrayTrait and use it (proposed by peterrum; merged)
#13000: Help compiler exploit hanging-node symmetries by reduced reg loads (proposed by kronbichler; merged)
#12999: Add FEEvaluationImplHangingNodes::RunTypes::scalar (proposed by peterrum)
#12997: Move FEEvaluationImplHangingNodes::run_internal() into a specialized class (proposed by peterrum; merged)
#12996: Stylist clean-up in FEEvaluationImplHangingNodes (proposed by peterrum; merged)
#12995: Use std::vector instead of Table (proposed by elauksap; merged)
#12994: Vectorize evaluation of hanging node interpolation (proposed by kronbichler; merged)
#12992: Fix bug MatrixFree::reinit (proposed by Rombur; merged)
#12991: delete sequential code in big MPI datatype (proposed by tjhei; merged)
#12990: Do not split evaluation_template_factory_hanging_nodes instantiations (proposed by kronbichler)
#12989: Fix compile warning by adding copy constructor to hp iterator (proposed by kronbichler; merged)
#12988: Use extractors for local_rhs in step-22 (proposed by fdrmrc; merged)
#12987: Make sure MPI BigData objects are always destroyed. (proposed by bangerth)
#12985: Improve default behaviour of CUDAWrappers::MatrixFree::reinit() (proposed by peterrum; merged)
#12984: Remove set_vertex_dof_index(). (proposed by drwells; merged)
#12983: Allow reusing mapping data in FEPointEvaluation (proposed by gassmoeller)
#12982: Add iterator traits to hp::CollectionIterator (proposed by peterrum; merged)
#12981: VectorizedArray: Simplify compare_and_apply_mask by blend instruction (proposed by kronbichler; merged)
#12980: Fix CellAccessor::neighbor_child_on_subface() (proposed by peterrum; merged)
#12979: Fix GridGenerator::merge_triangulations() for simplex meshes (proposed by peterrum; merged)
#12978: add Assert to get_mg_dof_indices (proposed by tjhei; merged)
#12977: Refactor HangingNodes::setup_constraints() (proposed by peterrum; merged)
#12976: Add assert to FEImmersedSurfaceValues (proposed by peterrum; merged)
#12975: Added extractors in local_rhs in step-22 (proposed by fdrmrc)
#12973: fix checkpointing with >2GB per process (proposed by tjhei; merged)
#12972: Update the documentation on iterator filters. (proposed by bangerth; merged)
#12971: Use iterator filters in tests/. (proposed by bangerth; merged)
#12969: Fix bug in build system when using Kokkos (proposed by Rombur; merged)
#12967: More work for COMSOL meshes (proposed by bangerth; merged)
#12965: Use iterator filters in our code base. (proposed by bangerth; merged)

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

#12998 Memory leak `Table`/`AlignedVector` (opened)
#12993 Memory leak with simplex meshes (opened and closed)
#12986 Big MPI data type test fails (opened)
#12974 Bug: writing large vtu files fails (opened)
#11380 SUNDIALS: replace copy with N_Vector module (closed)
#11039 step-22 uses extractors for the matrix but not for the right hand side (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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