deal.II Newsletter #110

[Rene Gassmoeller]

Hello everyone!

This is deal.II newsletter #110.
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:

#9540: Fix overflow in tria.n_global_active_cells() (proposed by tjhei; merged)
#9539: Redefine Assert as AssertThrow in tests (proposed by masterleinad)
#9537: Be pedantic in how we spell deal.II. (proposed by bangerth; merged)
#9536: Avoid nonlocal control flow since it's so hard to read. (proposed by bangerth; merged)
#9534: Use a 64bit type in one other MGTransfer location (proposed by tjhei; merged)
#9533: Use AssertThrow when LAPACK or other dependencies are not installed (proposed by tjhei; merged)
#9532: do not use

tag in tutorials (proposed by tjhei; merged)
#9531: Move the step-71 -> step-47 references in references.bib. (proposed by bangerth; merged)
#9530: Avoid correcting higher derivatives if mapping is Cartesian (proposed by simonsticko)
#9529: Add split_by_block() into IndexSet (proposed by KatrinMang)
#9528: Use types::global_dof_index rather than unsigned int in MGTransfer (proposed by kronbichler; merged)
#9527: Remove empty lines inside html tables (proposed by GrahamBenHarper; merged)
#9526: Add python version of step-49 (proposed by agrayver)
#9525: Ensure to have valid quadrature point data for all SIMD lanes (proposed by kronbichler; merged)
#9524: FEEvaluation: Place exception about no block vector correctly (proposed by kronbichler; merged)
#9523: Replace eps-generated figure by vtu-generated one in step-6. (proposed by bangerth; merged)
#9522: Scale a graphic in the results section of step-14. (proposed by bangerth; merged)
#9521: Remove one newline at beginning of timer statistics (proposed by kronbichler)
#9519: Avoid calling into MPI functions with MinMaxAvg in serial (proposed by kronbichler; merged)
#9518: Use value semantics for const parameters with trivial small types (proposed by rezarastak; merged)
#9516: parallel::CellWeights: Capture values, not references. (proposed by marcfehling; merged)
#9515: Remove some unused variable warnings in vectorization.h (proposed by GrahamBenHarper; merged)
#9514: Remove MPI_COMM_WORLD as default argument in write_vtu_with_pvtu_record (proposed by peterrum; merged)
#9512: Fix MueLu periodicity test (proposed by kronbichler; merged)
#9511: Indent script: Do not use --diff-filter=d (proposed by tamiko; merged)
#9510: Add more python bindings (proposed by agrayver; merged)
#9509: Explicitly call p4est's repartition functions instead of p::d::Tria::repartition(). (proposed by marcfehling)
#9508: Fix sections in step-45 (proposed by masterleinad; merged)
#9507: Minor edit to step-6's results section. (proposed by bangerth; merged)
#9506: Update tutorial programs to fix all broken dox links (proposed by GrahamBenHarper; merged)
#9505: Upgrade checkdoxygen.py to check for multiple-defined section headers (proposed by GrahamBenHarper)
#9501: Correct the printed message output from ExcInvalidBoundaryFunction() (proposed by jihuan-tian; merged)
#9495: Convert step-14 from using eps/gnuplot to svg/vtu. (proposed by bangerth; merged)
#9493: Convert step-30 from using eps/gnuplot to svg/vtu. (proposed by bangerth; merged)
#9474: Add boundary id functionality to write_svg (proposed by GrahamBenHarper; merged)
#9473: Add Utilities::MPI::min_max_avg() for vectors (proposed by peterrum; merged)
#9451: step-47: switch the jump and average in one term of the scheme. (proposed by sophy1029; merged)

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

#9538 Copy the graph of modules from the new deal.II paper to the documentation (opened)
#9535 Using 4 elements for Tensor<1,dim> (opened)
#9520 Outdated section of step-49 (opened)
#9517 make_hanging_node_constraints() with p::d::Triangulation + hp::DoFHandler Error (opened and closed)
#9513 Linking for debug library fails on power8 arch (opened and closed)
#9489 make indent fails with old git version (closed)
#9460 [Step-20] Doxygen linking mechanism is inadequate when linking to different sections having the same heading name? (closed)
#9317 Double check the derivation in step-47 (closed)
#9312 FEEvaluation segfaults for invalid numbers of components (closed)
#8937 Hang with 4+ billion DoFs (closed)
#5982 In the tutorials, get rid of EPS output (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.