deal.II Newsletter #360

[Rene Gassmoeller]

Hello everyone!

This is deal.II newsletter #360.
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:

#19936: Choose more efficient way of asking whether a vector is zero. (proposed by bangerth; merged)
#19935: PETSc + Bicgstab: use a wider range of tolerances. (proposed by drwells; merged)
#19934: Bump actions/checkout from 6 to 7 (proposed by dependabot[bot]; merged)
#19933: Simplify interface to vector access with hanging node constraints (proposed by kronbichler)
#19931: Make step-90 compatible with TpetraWrappers (proposed by gassmoeller; merged)
#19930: CI: fix gmsh version parsing. (proposed by drwells)
#19929: Make a Tpetra vector function const (proposed by gassmoeller; merged)
#19928: Space two pictures in the documentation of DataPostprocessorTensor. (proposed by bangerth)
#19927: Unify the CG solver classes used in step-45 and step-32 (proposed by gassmoeller; merged)
#19926: adolc: bypass a check so we throw an exception. (proposed by drwells; merged)
#19925: Add changelog entry (proposed by iprusak; merged)
#19924: Clarify some code comments. (proposed by bangerth)
#19923: Don't mark member functions in source files as inline. (proposed by drwells; merged)
#19922: Don't mark functions in anonymous spaces as inline. (proposed by drwells; merged)
#19921: Use `ScalarLagrangePolynomialSimplex` in `FE_SimplexP` (proposed by dominiktassilostill)
#19920: Make some variables const in `quadrature_lib.cc` (proposed by dominiktassilostill; merged)
#19919: Fix dofs support contained within with constraints (proposed by tnschmid; merged)
#19917: Make CGAL detection robust. (proposed by luca-heltai; merged)
#19916: Add a pull request template with an AI disclosure statement (proposed by blaisb)
#19915: Add to the documentation of quadrature classes. (proposed by bangerth; merged)
#19914: InitFinalize: handle GMSH. (proposed by drwells; merged)
#19913: Re-apply #19291. (proposed by bangerth; merged)
#19912: step-39: update the perl script. (proposed by drwells; merged)
#19911: CI: print the largest files in the Windows build directory. (proposed by drwells; merged)
#19910: MatrixCreator: use type erasure. (proposed by drwells; merged)
#19909: MatrixCreator: consolidate the assemblers. (proposed by drwells; merged)
#19908: DerivativeApproximation: use type erasure. (proposed by drwells; merged)
#19904: Arkode: introduce SplittingStepper (proposed by vovannikov)
#19900: Improve error messages in FiniteElement::get_sub_fe(). (proposed by bangerth; merged)
#19899: Better document FiniteElement::get_sub_fe(). (proposed by bangerth; merged)
#19894: Deprecate other now-unused parts of MeshWorker. (proposed by bangerth; merged)
#19893: Deprecate those classes that were only used in step-39. (proposed by bangerth; merged)
#19892: Better document DoFTools::extract_dofs_with_support_contained_within(). (proposed by bangerth; merged)
#19882: Only work-around HDF5 bug for sufficiently old versions. (proposed by bangerth; merged)
#19878: MappingFE::compute_mapping_support_points(): re-use an array. (proposed by drwells; merged)
#19863: Remove dependence of step-39 on old MeshWorker classes. (proposed by bangerth; merged)
#19841: Add constant mode extraction to Tpetra MueLu (proposed by gassmoeller; merged)
#19708: Fix support contained within without constraints (proposed by tnschmid; merged)
#19630: VTKWrappers utilities -- part XI -- vtk <-> tria + manifold/boundary/material (proposed by luca-heltai; merged)
#19614: High order simplex quadrature (proposed by dominiktassilostill; merged)
#19347: Add Portable::MGTwoLevelTransfer (proposed by iprusak; merged)
#19264: Hp dof identities for simplices, wedges and pyramids (proposed by dominiktassilostill; merged)
#18178: Power iteration: check norm of initial vector (proposed by peterrum; merged)
#16537: Precompute weights for parallel::CellWeights. (proposed by marcfehling; merged)

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

#19932 Compatibility of deal.II examples with Trilinos 17/Tpetrawrappers (opened)
#19918 Improve setup costs of TwoLevelTransfer::reinit_geometric_transfer (opened)
#19903 Re-apply #19291. (opened and closed)
#19782 PreconditionChebyshev::vmult should not pick up state of `dst` vector (closed)
#19777 Regression tester regressed d681af (closed)
#19741 Regression tester regressed cbe48e (closed)
#19696 extract_dofs_with_support_contained_within() returns wrong results in parallel (closed)
#19645 Regression tester regressed 6cb533 (closed)
#19608 Regression tester regressed 1a2ab6 (closed)
#19574 Regression tester regressed f112b1 (closed)
#19521 Guard HDF5 initialization to avoid FP exceptions in tests.h with HDF5 version number. (closed)
#19515 Regression tester regressed dc205d (closed)
#19447 How to write into non-locally-owned entries of fully distributed TpetraWrappers::Vectors. (closed)
#19441 Regression tester regressed 40b6df (closed)
#17696 Deprecate IntegrationInfo and IntegrationInfoBox. (closed)
#15946 CMake: use pkgconfig information when available (closed)
#15839 Remove MeshWorker framework (closed)
#13668 Make CGAL detection robust (closed)
#10474 DataOut::add_data_vector vector handling (closed)
#9867 Use tensor product evaluation for MappingQGeneric::fill_fe_face_values (closed)
#3845 Allow more element types in MGTransferMatrixFree (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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