deal.II Newsletter #213

[Rene Gassmoeller‏]

Hello everyone!

This is deal.II newsletter #213.
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:

#13820: Refactor grid fixup functions (proposed by drwells)
#13819: [9.3] Take over doxygen fixes (proposed by tamiko)
#13818: Step-40: Remove an unmatched single quote (proposed by tamiko)
#13817: Remove now obsolete CellDataTransferBuffer (proposed by kronbichler)
#13816: Use GridTools::exchange_cell_data_on_ghosts for DoF renumbering (proposed by kronbichler)
#13815: ParameterHandler::print_parameters(): Demangle JSON (proposed by mschreter)
#13814: NonMatching: Compute exact coupling mass matrix and exact sparsity pattern (proposed by fdrmrc)
#13813: Utilities: Fix compile error on certain compilers (proposed by kronbichler; merged)
#13812: Remove unnecessary MPI barriers (proposed by kronbichler)
#13811: Optimize Utilities::pack for std::vector> (proposed by kronbichler)
#13810: Assert reference cell is hypercube in Discrete*QuadratureGenerator (proposed by simonsticko; merged)
#13809: Adjust output of tests using PreconditionChebyshev (proposed by kronbichler; merged)
#13808: [9.5] Removed hp::DoFHandler. (proposed by marcfehling)
#13807: Compute Quadrature formula over a general poly (proposed by fdrmrc)
#13806: [WIP] FEPointEvaluation for dim!=spacedim (proposed by peterrum)
#13805: Fix test dependencies (proposed by drwells)
#13804: Fix doxygen entry Chronopoulos1989. (proposed by marcfehling; merged)
#13803: Fix some miscellaneous typos. (proposed by drwells; merged)
#13802: Avoid CellDataTransferBuffer in GridTools::exchange_cell_data_to_ghosts (proposed by kronbichler; merged)
#13801: Avoid a second copy in Utilities::pack for vector arguments (proposed by kronbichler; merged)
#13800: Slightly simplify setup of partitioners for global cell ids (proposed by kronbichler; merged)
#13799: Fix compilation of Utilities::pack with std::vector (proposed by kronbichler; merged)
#13798: Provide function to evaluate polynomial on array of positions (proposed by kronbichler; merged)
#13797: Fix bug in FEEvaluation without vectorization (proposed by kronbichler; merged)
#13796: Fix two tests with vectorization disabled (proposed by kronbichler; merged)
#13795: Add some missing MPI boolean instantiations. (proposed by drwells; merged)
#13793: Require SUNDIALS 5.4 or later. (proposed by drwells)
#13792: PreconditionChebyshev: Implement power iteration for eigenvalue estimate (proposed by kronbichler; merged)
#13791: Reduce cost to set up dictionary for compute_index_owner (proposed by kronbichler; merged)
#13790: MatrixFree: Simplify initialization of ShapeInfo (proposed by kronbichler; merged)
#13789: Clearify LA::d::BlockVector::reinit input argument (proposed by gfcas; merged)
#13788: Kinsol sundials 6 (proposed by drwells; merged)
#13787: Massively lower some IDA solver tolerances. (proposed by drwells)
#13786: Fix ARKODE for SUNDIALS 6. (proposed by drwells; merged)
#13785: Add an exception for commits from dependabot. (proposed by drwells; merged)
#13784: Optimize pack()/unpack() for std::vector with trivially copyable T. (proposed by bangerth; merged)
#13783: TBB oneAPI: make global_control object static (proposed by tamiko; merged)
#13781: Bump actions/upload-artifact from 1 to 3 (proposed by dependabot[bot]; merged)
#13780: Bump docker/build-push-action from 2 to 3 (proposed by dependabot[bot]; merged)
#13779: Bump actions/cache from 2 to 3 (proposed by dependabot[bot]; merged)
#13778: Bump docker/setup-buildx-action from 1 to 2 (proposed by dependabot[bot]; merged)
#13777: Bump docker/login-action from 1 to 2 (proposed by dependabot[bot]; merged)
#13776: Give a shell script a proper suffix. (proposed by bangerth; merged)
#13775: Update copyright years. (proposed by bangerth; merged)
#13774: Added dependabot for github-actions. (proposed by marcfehling; merged)
#13773: Refactor function parser (proposed by drwells)
#13772: Doxygen: Ensure that opening and closing glossary quotes are on the same line (proposed by tamiko; merged)
#13771: CGAL: Add remesh_surface utility (proposed by fdrmrc)
#13770: Minor code updates to create_right_hand_side (proposed by gfcas; merged)
#13769: Remove ConsensusAlgorithms::AnonymousProcess. (proposed by bangerth)
#13768: Consensus Algorithms: Move template functions into .h file. (proposed by bangerth)
#13767: Create a Triangulation<3> from a Triangulation<2,3> (proposed by fdrmrc)
#13766: Implement pyramid volume and fix wedge volume. (proposed by drwells; merged)
#13765: Remove std::abs() from the tet volume calculation. (proposed by drwells; merged)
#13763: Fix compile error of test on certain compilers (proposed by kronbichler; merged)
#13762: Use std::call_once() instead of hand-rolling a solution. (proposed by bangerth; merged)
#13761: Properly indent a cmake command. (proposed by bangerth; merged)
#13760: Test robustness2 (proposed by kronbichler; merged)
#13759: CMake: Do not configure CGAL with bundled boost (proposed by tamiko; merged)
#13758: Add a comment explaining BOOST_DEFINITIONS (proposed by drwells; merged)
#13757: CMake: Avoid a CMake policy warning (proposed by tamiko; merged)
#13756: MatrixFree: Add instantiation for ConstraintValues::insert_entries (proposed by kronbichler; merged)
#13755: Make multigrid test more robust (proposed by kronbichler; merged)
#13754: Convert a deal.II tria to a CGAL::Surface_mesh (proposed by fdrmrc; merged)
#13753: Variadic template parameter for CGAL Mesh criteria (proposed by fdrmrc)
#13752: Fix compute_index_owner_01. (proposed by marcfehling; merged)
#13751: Check for range of function calls in bfgs tests. (proposed by marcfehling; merged)
#13745: Avoid doing extra TLS lookups in FunctionParser. (proposed by drwells; merged)
#13741: Fix sundials 6 tests, part 1 (proposed by drwells; merged)
#13735: CGAL C3T3 to deal.II Triangulation. (proposed by luca-heltai; merged)
#13721: step-40: update IO section (proposed by tjhei; merged)
#13642: Matrix-free Piola transformation for affine cells (proposed by NiklasWik; merged)
#13611: embed BigMPICompat library (proposed by tjhei; merged)
#12664: Unghost matrix diagonals (proposed by drwells; merged)

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

#13794 Undefined reference to void Utilities::MPI::internal::all_reduce() (opened and closed)
#13782 TBB oneAPI: thread concurrency limiting does not get applied. (opened and closed)
#13764 Resolving external library interdependencies (opened)
#13584 Get rid of std::abs() when computing tet volumes (closed)
#13578 TLS is quite slow (closed)
#12660 Don't use ghosted vectors in `MatrixFreeOperators::get_matrix_diagonal()` et al (closed)
#12141 Rework BOOST_DEFINITIONS (closed)

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

Thanks for being part of the community!

Let us know about questions, problems, bugs or just share your experience by writing to this mailing list, or by opening issues or pull requests on Github.
Additional information can be found at our official website.