deal.II Newsletter #188

[Rene Gassmoeller]

Hello everyone!

This is deal.II newsletter #188.
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:

#12899: Improve an error message. (proposed by bangerth; merged)
#12898: Allow gnuplot output for triangles. (proposed by bangerth; merged)
#12897: Fix some typos (proposed by gfcas; merged)
#12896: Split up matrix_tools.h -> matrix_creator.h (proposed by peterrum)
#12895: Make DataOutFaces work with simplices (proposed by bangerth)
#12893: hp::Collection: allow range-based loop (proposed by peterrum; merged)
#12892: MGTwoLevelTransfer: make AffineConstraints optional (proposed by peterrum; merged)
#12891: MGTwoLevelTransfer: enable FE_Nothing (proposed by peterrum; merged)
#12890: ARKode: set stop time for incremental solve (proposed by sebproell)
#12889: Fix compilation (proposed by peterrum; merged)
#12888: Simplify the code for outputting data in gnuplot format. (proposed by bangerth; merged)
#12887: Relax an assert in DoFTools::map_dofs_to_support_points (proposed by Rombur; merged)
#12886: Fix typos in hp::FECollection doc (proposed by gfcas; merged)
#12885: It's never just one thing... (proposed by bangerth; merged)
#12884: Corrections in Step-45 (proposed by marcfehling; merged)
#12883: Added DOI for the tutorial program step-82 (proposed by dianeguignard; merged)
#12882: [9.3] Cherry pick #12634 (proposed by tamiko; merged)
#12881: [9.3] Cherry pick #12830 (proposed by tamiko; merged)
#12880: Rename some variables in MGTransferGlobalCoarsening (proposed by peterrum; merged)
#12879: Fix compilation of MGTransferGlobalCoarsening::interpolate_to_mg() (proposed by peterrum; merged)
#12878: Introduce TriaAccessor::combined_face_orientation() (proposed by peterrum; merged)
#12877: Do not preset Patch::reference_cell. (proposed by bangerth; merged)
#12876: Fix Patch member functions. (proposed by bangerth; merged)
#12875: Make Patch<0,spacedim>::reference_cell const. (proposed by bangerth; merged)
#12874: Make Patch<0,spacedim>::n_subdivisions a 'const' variable. (proposed by bangerth; merged)
#12872: Fix a typo. (proposed by drwells; merged)
#12871: avoid unused variable warning (proposed by tjhei; merged)
#12869: Fix docu of PreconditionChebyshev (proposed by peterrum; merged)
#12868: Make code a bit more readable. (proposed by bangerth; merged)
#12867: Make code a bit more readable. (proposed by bangerth; merged)
#12866: Update class Quadrature in a couple of ways (proposed by bangerth; merged)
#12865: Avoid generation of expensive FE objects. (proposed by bangerth; merged)
#12864: PETScWrappers::MPI::Vector: add new reinit() (proposed by peterrum; merged)
#12863: SparseMatrix::reinit(): accept other sparse matrix (proposed by peterrum; merged)
#12862: MatrixCreator: make SparseMatrixType a template parameter (proposed by peterrum; merged)
#12861: Add a changelog entry for pr12787 (proposed by vachan-potluri; merged)
#12860: Do not a priori allocate memory for objects that will later be re-sized. (proposed by bangerth)
#12859: Towards making DataOutFaces work with simplices. (proposed by bangerth; merged)
#12858: Add MGTransferGlobalCoarsening::interpolate_to_mg() that does not take DoFHandler (proposed by peterrum; merged)
#12855: fix step-49 geo file (proposed by tjhei; merged)
#12847: DataOut for pyramids: reorder at the end (proposed by peterrum; merged)
#12838: FE_Q_iso_Q1: varying subdivisions (proposed by peterrum; merged)
#12832: variable checkpointing fixes for >4GB files (proposed by tjhei; merged)
#12825: Do not communicate vertices automatically to p4est in debug mode. (proposed by marcfehling; merged)

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

#12894 Support for Kokkos in deal.II (opened)
#12873 MPI IO file write with >2GB individual writes (opened)
#12870 Ordering of evaluation points when outputting data on higher-subdivision tets (opened)
#12842 Ordering of vertices for wedges and pyramids (closed)
#12826 step-49 example gmsh input file doesn't work (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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Additional information can be found at our official website.