Hello everyone! This is deal.II newsletter #30. 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: #6405: Avoid accessing elements of a zero size vector in ParticleHandler (proposed by masterleinad) https://github.com/dealii/dealii/pull/6405 #6404: Guard accessing values in Vector<Number>::zero_out_ghosts (proposed by masterleinad) https://github.com/dealii/dealii/pull/6404 #6402: Avoid signed overflow in Testing::rand (proposed by masterleinad) https://github.com/dealii/dealii/pull/6402 #6401: Only invert bits up to the maximum possible in ~CacheUpdateFlags (proposed by masterleinad) https://github.com/dealii/dealii/pull/6401 #6400: Avoid using '**/' at the end of comments. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6400 #6399: Fix documentation for NonMatching (proposed by GivAlz; merged) https://github.com/dealii/dealii/pull/6399 #6398: zoltan: run with mpirun annotation to avoid race condition (proposed by davydden) https://github.com/dealii/dealii/pull/6398 #6396: Gnuplot compression (proposed by drwells) https://github.com/dealii/dealii/pull/6396 #6395: Test fixes with AVX-512 (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/6395 #6393: Make sure not to attach a PropertyPool if not asked for (proposed by masterleinad) https://github.com/dealii/dealii/pull/6393 #6392: Clarify that base/reference causes stack-use-after-scope (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6392 #6391: Avoid accessing invalid memory in base/utilities_pack_unpack_04 (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6391 #6390: Provide alternative output for the *vector_add_and_dot_complex tests without threads (proposed by masterleinad) https://github.com/dealii/dealii/pull/6390 #6389: Fix memory leak in KINSOL wrapper (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6389 #6388: Improve documentation of new matrix free data structures (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/6388 #6387: Call the correct deleter for ReadWriteVector::values (proposed by masterleinad) https://github.com/dealii/dealii/pull/6387 #6386: Prefer emplace_back over push_back in a few places (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/6386 #6385: Fix warning for non-const comparator (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6385 #6384: Break lines before author names in changelog (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/6384 #6383: Fix more typos. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6383 #6382: Remove some references to C++11 support. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6382 #6381: Update step 6 (proposed by drwells) https://github.com/dealii/dealii/pull/6381 #6380: Disable sc_init (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6380 #6379: Mark Subscriptor::check_no_subscribers as noexcept. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6379 #6378: Fix vectorized scatter for AVX-512 (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/6378 #6377: Matrix free DG test fixes (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/6377 #6376: Fix doxygen code style in FE_P1NC documentation (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6376 #6375: Fix scalapack create group (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6375 #6373: deprecate operator* between 2 second order symmetric tensors (proposed by davydden) https://github.com/dealii/dealii/pull/6373 #6372: scalapack: restrict copy_to() to MPI>=3.0 (proposed by davydden) https://github.com/dealii/dealii/pull/6372 #6371: CMake: Make Adol-C check for boost pool more specific. (proposed by jppelteret) https://github.com/dealii/dealii/pull/6371 #6370: Update step-49. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6370 #6369: Add some third-party library restrictions to tests. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6369 #6368: Fix assert nothrow slicing (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6368 #6367: Make FiniteElement::operator== virtual. (proposed by bangerth) https://github.com/dealii/dealii/pull/6367 #6366: Namespace qualify a function call. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/6366 #6365: Fix a test for GCC 4.8.4 by doing a cast explicitly. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/6365 #6364: Remove a static manifold. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6364 #6363: Remove extra manifold_lib.h inclusions. (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6363 #6362: Improve documentation of FEEvaluation::submit_gradient & co (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/6362 #6361: Tests: avoid concurrent run of a-framework/parameter_file_x (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/6361 #6360: Update readme.html (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6360 #6359: zoltan/tria_zoltan_01: Always run with mpirun annotation to avoid race condition (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/6359 #6358: Fix up remaining uses of 'output' in GridIn::read_netcdf (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6358 #6352: Fix hyper cube with cylindrical hole (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6352 #6350: Allow Asserts for functions running on host (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6350 #6349: Adol-C advanced branching: Fix FEValues and tensor classes (proposed by jppelteret) https://github.com/dealii/dealii/pull/6349 #6347: CMake: Add missing boost headers to AdolC module (proposed by jppelteret; merged) https://github.com/dealii/dealii/pull/6347 #6346: License header updates (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/6346 #6345: Bugfix: Close #ifdef at the right point (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/6345 #6344: Fix issues reported by cppcheck (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6344 #6341: Only run assign_subscriptor in Debug mode (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6341 #6340: Update copyright notices 2 (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6340 #6338: Update GridGenerator examples 4 (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6338 #6337: Update gridgenerator examples 3 (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6337 #6336: Failing test in mapping q eulerian. (proposed by luca-heltai) https://github.com/dealii/dealii/pull/6336 #6335: CMake: Link in Boost libraries for ADOLc check (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/6335 #6333: Check own subscriptions when assigning in Subscriptor (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6333 #6331: update copyright years (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/6331 #6330: Only replace FECollection in *DoFHandler if necessary (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6330 #6329: Fix bug in MappingQEulerian (proposed by luca-heltai) https://github.com/dealii/dealii/pull/6329 #6328: Make Subscriptor thread-safe & add general list_subscribers() function. (proposed by jppelteret) https://github.com/dealii/dealii/pull/6328 #6327: Replace DofHandler by DoFHandler (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6327 #6326: Failing test for multiple distribute dofs. (proposed by luca-heltai) https://github.com/dealii/dealii/pull/6326 #6324: Fix warning about missing return statement in ICC (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/6324 #6323: Fix a grammar mistake. (proposed by bangerth; merged) https://github.com/dealii/dealii/pull/6323 #6322: Instantiate distribute_local_to_global for another combination of PETScWrapper objects (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6322 #6321: Add Codecov support (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6321 #6320: more doxygen fixes (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/6320 #6319: doxygen fixes (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/6319 #6318: fix some ugly doxygen formatting (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/6318 #6317: enable ROL in doxygen (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/6317 #6316: Doxygen formatting (proposed by tjhei; merged) https://github.com/dealii/dealii/pull/6316 #6315: Allow less iterations in petsc_complex/solver_real_02 (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6315 #6313: Capitalize Gmsh appropriately (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6313 #6310: Matrix free module (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/6310 #6309: Fix failing CUDA test (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6309 #6308: CMake: Ensure to be compatible with version 3.11 FindBlas.cmake (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/6308 #6305: Store the FECollection object and not just the pointer in DoFHandler and hp::DoFHandler (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6305 #6304: Update gridgenerator examples 2 (proposed by drwells; merged) https://github.com/dealii/dealii/pull/6304 #6303: Direct solvers on GPU (proposed by Rombur; merged) https://github.com/dealii/dealii/pull/6303 #6302: Tests: metis/metis_05 add output variant (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/6302 #6300: Face loop functionality in MatrixFree, FEFaceEvaluation class, test cases (proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/6300 #6298: PETSc: Port to version 3.9.0 (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/6298 #6296: Fix bug in MappingFEField (proposed by luca-heltai; merged) https://github.com/dealii/dealii/pull/6296 #6295: Min/Max diameter with mapping (proposed by luca-heltai; merged) https://github.com/dealii/dealii/pull/6295 #6292: Fix various issues reported by coverity (proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/6292 #6290: Fixed distributed cpt locations return tuple and added test (proposed by GivAlz; merged) https://github.com/dealii/dealii/pull/6290 #6285: Introduce face functionality to fe_evaluation. (proposed by kkormann; merged) https://github.com/dealii/dealii/pull/6285 #6284: Tests: Always create a small 'detailed.log' file (proposed by tamiko; merged) https://github.com/dealii/dealii/pull/6284 #6178: Added to_string and to_value (proposed by luca-heltai; merged) https://github.com/dealii/dealii/pull/6178 ## And this is a list of recently opened or closed discussions: #6403: Invalid memory access in MatrixFree functions (opened) https://github.com/dealii/dealii/issues/6403 #6397: Invalid manifold id is the same as flat manifold id (opened) https://github.com/dealii/dealii/issues/6397 #6394: Documentation for NonMatching::coupling not compiling (opened and closed) https://github.com/dealii/dealii/issues/6394 #6374: contract between symmetric and nonsymmetric rank2 tensors (opened) https://github.com/dealii/dealii/issues/6374 #6357: FEValuation submit_symmetric_gradient and submit_gradient (opened and closed) https://github.com/dealii/dealii/issues/6357 #6356: Treatment of hanging nodes for MF::FaceInfo::cell_and_face_to_plain_faces (opened) https://github.com/dealii/dealii/issues/6356 #6355: extend documentation of/enhance AdditionalData::initialize_indices (opened) https://github.com/dealii/dealii/issues/6355 #6354: Still can't find hdf5 even configure dealii with hdf5 (opened and closed) https://github.com/dealii/dealii/issues/6354 #6353: Replace bessel function with something in boost (opened) https://github.com/dealii/dealii/issues/6353 #6351: scalapack and MPI version (opened and closed) https://github.com/dealii/dealii/issues/6351 #6348: Fix undefined symbols related to Adol-C (opened and closed) https://github.com/dealii/dealii/issues/6348 #6343: State of Testsuite (opened) https://github.com/dealii/dealii/issues/6343 #6342: How to configure dealii with hdf5? There are some thing wrong with my configuration (opened and closed) https://github.com/dealii/dealii/issues/6342 #6339: Compilation fails with ADOL-C (current master) configured with --enable-advanced-branching (opened) https://github.com/dealii/dealii/issues/6339 #6334: adolc detection and other libraries (opened and closed) https://github.com/dealii/dealii/issues/6334 #6332: Deprecate MeanValueFilter (opened) https://github.com/dealii/dealii/issues/6332 #6325: Bug in DoFHandler and hp::DoFHandler (opened and closed) https://github.com/dealii/dealii/issues/6325 #6314: Can we make Subscriptor::list_subscribers work with threads? (opened) https://github.com/dealii/dealii/issues/6314 #6312: FEEvaluation::fill_JxW_values() should return array rather than fill it (opened) https://github.com/dealii/dealii/issues/6312 #6311: optionally limit Functions::FEFieldFunction to locally owned cells (opened and closed) https://github.com/dealii/dealii/issues/6311 #6307: Possible regression in `GridGenerator` (opened and closed) https://github.com/dealii/dealii/issues/6307 #6294: MappingFEField does not implement get_vertices (closed) https://github.com/dealii/dealii/issues/6294 #6270: ConstraintMatrix instantiation for complex number (closed) https://github.com/dealii/dealii/issues/6270 #6252: Failing CUDA test (closed) https://github.com/dealii/dealii/issues/6252 #6247: Make a docker image based on spack (closed) https://github.com/dealii/dealii/issues/6247 #6157: Minor changes to LinearIndexIterator (closed) https://github.com/dealii/dealii/issues/6157 #5773: interrupt_guard.cc.o: No such file or directory (closed) https://github.com/dealii/dealii/issues/5773 #5716: MPI_InitFinalize messes with MPI_Comm_create_group (closed) https://github.com/dealii/dealii/issues/5716 #5715: Bug using MappingFEField and refinements (closed) https://github.com/dealii/dealii/issues/5715 #5667: Support for face integrals in DG (closed) https://github.com/dealii/dealii/issues/5667 #5666: MatrixFree & vector valued FE : block-wise structure on the input/output vectors is not allowed (closed) https://github.com/dealii/dealii/issues/5666 #5197: Group matrix-free cell blocks based on predicate (ie material ID) (closed) https://github.com/dealii/dealii/issues/5197 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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