deal.II Newsletter #239

[Rene Gassmoeller]

Hello everyone!

This is deal.II newsletter #239.
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:

#14719: Use initlog() in more tests. (proposed by drwells)
#14718: Add explicit instantiations for VectorTools::get_position_vector overload (proposed by masterleinad)
#14717: Fix ghost indices handling for PETSc vectors (proposed by stefanozampini)
#14716: Minor fixes for PETSc testing (proposed by stefanozampini)
#14715: Configure: enhance discovery of SLEPc (proposed by stefanozampini; merged)
#14714: Make ensure_kokkos_initialized thread-safe (proposed by masterleinad)
#14713: CMake: add_test(): allow concurrent runs of tests with shared targets (proposed by tamiko)
#14712: Global-coarsening MG: test linear elements (proposed by peterrum; merged)
#14710: ReferenceCell: consolidate some tables. (proposed by drwells; merged)
#14709: Miscellaneous improvements to ReferenceCell (proposed by drwells)
#14708: Added default constructor for CellWeights. (proposed by marcfehling; merged)
#14707: Minor changes to PoisseuilleFlow. (proposed by marcfehling; merged)
#14706: Remove reference cell namespace (proposed by drwells; merged)
#14705: Fix race condition in implicit Kokkos initialization (proposed by masterleinad; merged)
#14703: Test: sundials/n_vector: fix race condition (proposed by tamiko; merged)
#14702: Set combined orientation (proposed by drwells)
#14701: Also mark some variable instantiations as 'extern'. (proposed by bangerth)
#14700: Improve two static_assert()s. (proposed by drwells; merged)
#14699: include/deal.II/optimization/line_minimization.h add missing include (proposed by tamiko; merged)
#14698: Declare the existence of explicit instantiations. (proposed by bangerth; merged)
#14697: Add a comment for a recent patch. (proposed by bangerth; merged)
#14696: Tests: optimization/* add missing includes (proposed by tamiko; merged)
#14684: PETScWrappers::MatrixBase implement clear_rows_columns (proposed by stefanozampini; merged)
#14683: PETScWrappers::MPI::SparseMatrix: use SEQAIJ with one process (proposed by stefanozampini; merged)
#14628: Convert CUDA tests to use Kokkos (proposed by masterleinad; merged)
#14601: Align PETSc mpi comm with comm of PETSc Vec type, and expose VecNest type (proposed by luca-heltai; merged)
#14361: introduce BoundingBox::is_neighbor() (proposed by jh66637; merged)

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

#14711 Configuring with `Trilinos` somehow adds cuda flags on `expanse` (opened)
#14704 find_all_active_cells_around_point issue with simplex (opened)
#14695 mapping_collection not defined (opened)

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.