deal.II Newsletter #105

[Rene Gassmoeller]

Hello everyone!

This is deal.II newsletter #105.
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:

#9250: Update the discussion of HDF5 and R scripting in step-3. (proposed by bangerth)
#9249: Replace Threads::mutex by std::mutex (proposed by masterleinad)
#9248: Mark 'Possibilities for extensions' as

. (proposed by bangerth)
#9247: Fix description of a test. (proposed by bangerth)
#9246: fixes a typo in function name. Replace make_grid_and_dofs() with just make_grid() (proposed by krishnakumarg1984)
#9245: Document out of memory issues with 'make -jN'. (proposed by bangerth; merged)
#9244: jenkins: increase OSX timeout (proposed by tjhei; merged)
#9242: replace some instances of Threads::Mutex with std::mutex (proposed by rezarastak)
#9241: Mark some input arguments as 'const'. (proposed by bangerth; merged)
#9240: Turn all for loops using "begin_active" into ranged-based ones (proposed by masterleinad)
#9239: config.h: remove old p4est version logic (proposed by tjhei; merged)
#9238: Remove reference to the IA64 architecture. (proposed by bangerth; merged)
#9237: make MueLu optional in Trilinos (proposed by tjhei)
#9236: Augment the documentation of GridGenerator::simplex(). (proposed by bangerth; merged)
#9235: Augment the UMFPACK error message. (proposed by bangerth)
#9234: doc: minor GridGenerator changes (proposed by tjhei; merged)
#9233: Remove cryptic comment (proposed by masterleinad; merged)
#9231: Simpler CellwiseInverseMassMatrix::apply() function (proposed by kronbichler)
#9230: Fix two bugs in matrix-free code (proposed by kronbichler; merged)
#9229: Return error code from indent-all in check_indentation.sh (proposed by masterleinad; merged)
#9228: fixes a typo in step-3 tutorial doc (convergence topic in results/extensions) (proposed by krishnakumarg1984)
#9225: fix a doxygen citation (proposed by tjhei; merged)
#9224: Replace some DEAL_II_WITH_P4EST with DEAL_II_WITH_MPI (proposed by peterrum; merged)
#9223: Bug fix in PR #9155 (proposed by peterrum; merged)
#9220: Test python bindings (proposed by masterleinad)
#9219: deprecate members in TimerOutput (proposed by tjhei; merged)
#9218: Instantiate FETools::get_projection_matrix for float (proposed by peterrum; merged)
#9217: Fix date in header (proposed by peterrum; merged)
#9216: Extend MatrixFree::get_dof_handler (proposed by Rombur)
#9215: Make DoFHandlerPolicy independent of p4est (proposed by peterrum; merged)
#9214: Add CellId::is_ancestor_of (proposed by peterrum; merged)
#9211: Instantiate DoFTools::map_dofs_to_support_points() also for <1,3>. (proposed by bangerth; merged)
#9210: Fix some doxygen namespace links. (proposed by drwells)
#9209: Keep the 'dealii::' in 'using namespace dealii::'. (proposed by drwells; merged)
#9208: Fix our TBB version check. (proposed by drwells; merged)
#9207: Implement the solution of complex linear systems using UMFPACK. (proposed by bangerth)
#9206: Provide TaskGroup::size(). (proposed by bangerth)
#9205: Use a range-based for loop. (proposed by bangerth; merged)
#9204: mu_parser functions modified to use std random number generators (proposed by rezarastak; merged)
#9203: Simplify the code in a test a bit. (proposed by bangerth; merged)
#9202: Mark a bunch of input arguments as 'const'. (proposed by bangerth; merged)
#9201: Minor doc updates. (proposed by bangerth; merged)
#9200: Fix what looks like an obvious typo in the UMFPACK source files. (proposed by bangerth; merged)
#9199: Avoid _n and _m as variable names. (proposed by bangerth; merged)
#9198: A sample code of advection-diffusion equation (proposed by saeedbahrami91)
#9197: Let step-40 only depend on step-6, not step-17. (proposed by bangerth; merged)
#9195: Create new dealii::Triangulation::create_triangulation() (proposed by peterrum)
#9194: Label step-40 as a 'basic' tutorial program. (proposed by bangerth; merged)
#9193: Let step-61 only build on step-51, not step-4. (proposed by bangerth; merged)
#9191: silence system header MPI warning (proposed by tjhei; merged)
#9190: Annotate a few function arguments in doxygen. (proposed by bangerth; merged)
#9189: Fix typo (proposed by peterrum; merged)
#9188: Include dof_accessor.h (proposed by peterrum; merged)
#9187: Specify namespace in precondition.h more precisely (proposed by masterleinad; merged)
#9186: Avoid variable template in hp::Refinement (proposed by masterleinad; merged)
#9185: Avoid warnings in tests (proposed by masterleinad; merged)
#9183: Implement FE_Poly::memory_consumption (proposed by peterrum; merged)
#9182: Deprecate some versions of DoFTools::extract_dofs(). (proposed by bangerth; merged)
#9181: ECL: specialize read/write operations [WIP] (proposed by peterrum)
#9179: Add python interface for FunctionManifold (proposed by agrayver)
#9178: Add a set of new python wrappers (proposed by agrayver)
#9176: Remove unnecessary assignment (proposed by peterrum; merged)
#9175: Improve GridGenerator::channel_with_cylinder (proposed by kronbichler; merged)
#9174: added default case for normal to mesh projection manifold (proposed by nicola-giuliani; merged)
#9173: Fix particles/extract_index_set_01 (proposed by masterleinad; merged)
#9172: Moved tests into their correct subdirectory. (proposed by luca-heltai; merged)
#9171: Symbolic function. (proposed by luca-heltai)
#9170: Fix formatting. (proposed by bangerth; merged)
#9168: Contiguous tensor product IndexSet. (proposed by luca-heltai; merged)
#9167: small documentation fix (proposed by rezarastak; merged)
#9166: Fix narrowing conversions in tests (proposed by masterleinad; merged)
#9165: Restrict a few more tests requiring complex values (proposed by masterleinad; merged)
#9159: Update the results section of step-46. (proposed by bangerth; merged)
#9157: Add field for inverse/projection of 1D polynomials to MF::ShapeInfo (proposed by kronbichler; merged)
#9155: ECL: make mapping of neighbor available (proposed by peterrum; merged)
#9151: Introduced hp::Refinement::p_adaptivity_fixed_number(). (proposed by marcfehling; merged)
#9148: Add a series of new python wrappers (proposed by agrayver; merged)
#9147: Test matrix-free CUDA for float (proposed by masterleinad; merged)
#9144: Add to FEInterfaceValues what we already have in FEValues. (proposed by bangerth; merged)
#9125: Feature tensor function parser (proposed by konsim83; merged)
#9106: Make pft independent of p4est (proposed by peterrum; merged)
#9074: Extract index sets from particle handlers (proposed by luca-heltai; merged)
#9036: Adding a test for hp::DoFHandler and parallel::distributed::Triangulation (proposed by BenBrands; merged)

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

#9243 Spack build failed for v9.1.1 when building target obj_numerics_debug (opened)
#9232 [Tutorial step-3] Request for python equivalent of possible extension ("Using R and ggplot2 to generate PDFs with plots of the grid, the solution and convergence curves") (opened)
#9227 [Step-3 tutorial] Invalid code for handling Neumann BCs along top and bottom faces (in suggested extensions) (opened)
#9226 [documentation] Lack of clarity on simplex() function in the GridGenerator namespace (opened and closed)
#9222 bibtex references broken on homepage (opened)
#9221 MatrixFree ECL: face data by cells storage (opened)
#9213 Perform coarsening with GridRefinement::refine_and_coarsen_optimize() (opened)
#9212 Update TBB to use its latest CMake-based build system (opened)
#9196 [documentation update needed] Step-1 tutorial still refers to old-style for loops for active cell iterators (opened and closed)
#9192 Create/Load grid with local refinement (opened)
#9184 Build of static library possibly broken (opened)
#9180 LinearOperator on Trilinos using MPI (opened)
#9177 FunctionParser still uses boost::random (opened and closed)
#9169 CMake cannot find LAPACK (opened)
#9164 Mismatch in vectorization capabilities (AVX) on i7-Comet Lake (opened)
#9163 Typo on Step-40's webpage (closed)
#9102 FE_DGQ::memory_consumption() is not implmented (closed)
#7023 Document steps to best visualize higher-order output in Paraview (closed)
#5019 Directory structure for Particles/BoundingBoxes/etc. (closed)

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

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