deal.II Newsletter #347

[Rene Gassmoeller]

Hello everyone!

This is deal.II newsletter #347.
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:

#19366: Move an exception that is used in only one place. (proposed by bangerth)
#19365: Remove dependencies from simple release build. (proposed by marcfehling)
#19364: Make TriaFaces a template. (proposed by bangerth)
#19363: Make some variables 'const'. (proposed by bangerth)
#19362: Simplify code. (proposed by bangerth; merged)
#19361: Make a function a template. (proposed by bangerth; merged)
#19360: Use 'if constexpr' in a couple more places. (proposed by bangerth; merged)
#19359: Remove code duplication regarding face type of reference cell. (proposed by AndSte01)
#19358: Test for simple Kokkos stokes solver (proposed by gassmoeller; merged)
#19357: TriaObjects: remove some hardcoded strides. (proposed by drwells; merged)
#19356: Distributed PSBLAS matrices and sparsity patterns (proposed by fdrmrc)
#19355: Move python bindings to debug parallel. (proposed by marcfehling; merged)
#19354: Build on macos-26. (proposed by marcfehling; merged)
#19353: Include t8code Build system (proposed by lukasdreyer)
#19351: AMR: replace p4est namespace by amr namespace (proposed by lukasdreyer)
#19350: Update contrib/utilities/count_lines.sh. (proposed by bangerth; merged)
#19349: Bump actions/upload-artifact from 6 to 7 (proposed by dependabot[bot]; merged)
#19348: TriaLevel: add an allocate() function. (proposed by drwells; merged)
#19347: Add Portable::MGTwoLevelTransfer (proposed by iprusak)
#19346: Simplify vec.add(a, other) to vec += other if a==1 (proposed by kronbichler; merged)
#19344: Support for Petsc version 3.25 (proposed by zhaokun-wang; merged)
#19341: Make AlignedVector::replicate_across_communicator() more able to deal with big tables. (proposed by bangerth; merged)
#19332: Reduce run time of a test by reducing sizes (proposed by kronbichler; merged)
#19330: Reduce run time of fe/fe*_divergence_theorem tests (proposed by kronbichler; merged)
#19218: Refactor BlockSparseMatrixEZ to derive from BlockMatrixBase (proposed by FelixKimmerle; merged)
#19051: Allow scratch memory shape data in portable tensor product evaluator (proposed by iprusak; merged)

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

#19352 AssertPetsc not available in user applications (opened)
#19166 Add function to get the index of a 2D faces child in an orientation aware manner. (closed)
#11242 BlockSparseMatrixEZ is not derived from BlockMatrixBase (closed)
#10957 Implement a way to export the state of the program in a well-defined file format (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.