Hello everyone! This is deal.II newsletter #78. 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: #8040: Adding inline in header file (proposed by rezarastak) https://github.com/dealii/dealii/pull/8040 #8039: Modernize step-51 (proposed by kronbichler) https://github.com/dealii/dealii/pull/8039 #8038: Modernize step-48 (proposed by kronbichler) https://github.com/dealii/dealii/pull/8038 #8037: Fix use of contexpr in Tensor class for older compilers (proposed by jppelteret; merged) https://github.com/dealii/dealii/pull/8037 #8036: Modernize step-29. (proposed by drwells) https://github.com/dealii/dealii/pull/8036 #8035: Rewrite parts of step-61. (proposed by bangerth) https://github.com/dealii/dealii/pull/8035 #8034: Remove some unnecessary std::moves. (proposed by drwells) https://github.com/dealii/dealii/pull/8034 #8033: SD scalar and tensor operations: Substitution and evaluation (proposed by jppelteret) https://github.com/dealii/dealii/pull/8033 #8032: Improve inverse_Hilbert_space_filling_curve to handle degenerate cases (proposed by davydden) https://github.com/dealii/dealii/pull/8032 #8031: Rename a couple of functions in step-61. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/8031 #8030: Fix compatibility with nanoflann 1.3. (proposed by drwells) https://github.com/dealii/dealii/pull/8030 #8027: Disable floating point exceptions in some scalapack tests. (proposed by drwells) https://github.com/dealii/dealii/pull/8027 #8025: Modernize step-59 (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/8025 #8024: Modernize step 28 (proposed by drwells; merged) https://github.com/dealii/dealii/pull/8024 #8023: Rewrite some code in step-61. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/8023 #8022: Fix a comment that had the wrong boundary id type. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/8022 #8021: provide access to p4est_t (proposed by tjhei) https://github.com/dealii/dealii/pull/8021 #8020: tutorials: add keywords (proposed by tjhei) https://github.com/dealii/dealii/pull/8020 #8019: Modernize step-62 (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/8019 #8018: Fix some failing AD tests. (proposed by jppelteret; merged) https://github.com/dealii/dealii/pull/8018 #8017: Fix Sacado tests (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/8017 #8016: Modernize step-63 (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/8016 #8014: step-55 disable logic with complex PETSc (proposed by anates; merged) https://github.com/dealii/dealii/pull/8014 #8013: Fix many of the output files for the tests of sacado and adolc (proposed by rezarastak; merged) https://github.com/dealii/dealii/pull/8013 #8012: [WIP] Step-64 : matrix-free CUDA (proposed by Rombur) https://github.com/dealii/dealii/pull/8012 #8011: Sprinkling c++11-compliant constexpr onto tensor.h and numbers.h (proposed by rezarastak; merged) https://github.com/dealii/dealii/pull/8011 #8010: Add some documentation on chunk sizes. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/8010 #8009: SD map operations: Add function to resolve explicit and cyclic dependencies (proposed by jppelteret) https://github.com/dealii/dealii/pull/8009 #8008: SD scalar and tensor operations: Make, add to, and set value in symbol map (proposed by jppelteret) https://github.com/dealii/dealii/pull/8008 #8007: Modernize step-25. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/8007 #8006: Modernize step-24. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/8006 #8005: Modernize step-23. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/8005 #8004: Compute coupling mass matrices using cutoff functions. (proposed by lwy5515) https://github.com/dealii/dealii/pull/8004 #8002: Mapping::get_bounding_box() (proposed by luca-heltai) https://github.com/dealii/dealii/pull/8002 #8001: Fix typos in equations (proposed by dangars; merged) https://github.com/dealii/dealii/pull/8001 #8000: Update Chebyshev documentation (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/8000 #7999: Coupling wenyu (proposed by lwy5515) https://github.com/dealii/dealii/pull/7999 #7998: fix link to notebook (proposed by Rombur; merged) https://github.com/dealii/dealii/pull/7998 #7996: Add step-62 to the tutorials list (proposed by dangars; merged) https://github.com/dealii/dealii/pull/7996 #7995: Remove namespace aliases in SymEngine headers (proposed by jppelteret; merged) https://github.com/dealii/dealii/pull/7995 #7994: Changelog entry step-62 (proposed by dangars; merged) https://github.com/dealii/dealii/pull/7994 #7993: Add some missing override annotations to step-63. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/7993 #7991: Add CMake options to the documentation (proposed by dangars; merged) https://github.com/dealii/dealii/pull/7991 #7990: Rename a local variable, make one 'const'. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/7990 #7973: SD tensor operations: Creation of, and addition to, substitution maps (proposed by jppelteret; merged) https://github.com/dealii/dealii/pull/7973 #7971: Updating Ginkgo wrapper after Ginkgo's release 1.0.0 (proposed by pratikvn; merged) https://github.com/dealii/dealii/pull/7971 #7911: Workstream meshworker iterator range (proposed by jppelteret; merged) https://github.com/dealii/dealii/pull/7911 #7905: Parsed convergence table (proposed by luca-heltai; merged) https://github.com/dealii/dealii/pull/7905 #6982: AD Helpers: Add tests (proposed by jppelteret; merged) https://github.com/dealii/dealii/pull/6982 #6747: Add phononic cavity tutorial (proposed by dangars; merged) https://github.com/dealii/dealii/pull/6747 ## And this is a list of recently opened or closed discussions: #8029: Failing ADOL-C and Sacado tests (opened) https://github.com/dealii/dealii/issues/8029 #8028: Possible issue with `constraints.reinit(locally_relevant_dofs);` (opened and closed) https://github.com/dealii/dealii/issues/8028 #8026: Cleanup static const[expr] stuff in ad_number_traits.h (opened) https://github.com/dealii/dealii/issues/8026 #8015: gcc9 warning: std::move with unique_ptr redundant (opened) https://github.com/dealii/dealii/issues/8015 #8003: "constexpr"ing Tensor, Point, and SymmetricTensor (opened) https://github.com/dealii/dealii/issues/8003 #7997: step-62 has 404 link (opened and closed) https://github.com/dealii/dealii/issues/7997 #7946: Tutorial examples can not be compiled, even though requirements are fulfilled (closed) https://github.com/dealii/dealii/issues/7946 #7907: Allow MeshWorker::mesh_loop() to work on iterator ranges (closed) https://github.com/dealii/dealii/issues/7907 #7851: Grainsize unreasonably small in vector_operations_internal.h (closed) https://github.com/dealii/dealii/issues/7851 #7712: Step-61: Improve grammar and language (closed) https://github.com/dealii/dealii/issues/7712 #6868: adjust_ghost_range_if_necessary should also use is_globally_compatible (closed) https://github.com/dealii/dealii/issues/6868 A list of all major changes since the last release can be found at https://www.dealii.org/developer/doxygen/deal.II/changes_after_8_5_0.html. 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