+++ /dev/null
-Changed: When calling Triangulation::get_manifold(manifold_id) for
-a non-existing manifold_id, the function returned a flat manifold.
-This behaviour has been changed and an assert is thrown in this case.
-Furthermore, the functions Triangulation::reset_manifold() and
-Triangulation::reset_all_manifolds() do not actually remove the manifolds
-but make them flat.
-<br>
-(Peter Munch, 2022/12/09)
+++ /dev/null
-MatrixFree::reinit() would always set up the data structures for inner faces,
-also in case only
-MatrixFree::AdditionalData::mapping_updates_flags_boundary_faces was set. As
-this can lead to considerably higher memory consumption, the inner faces are
-now only set up when requested, increasing efficiency. When inner faces are
-desired, make sure to set
-MatrixFree::AdditionalData::mapping_updates_flags_inner_faces.
-<br>
-(Martin Kronbichler, 2023/06/19)
+++ /dev/null
-Removed: The deprecated Functions::LevelSet namespace
-has been removed
-<br>
-(Daniel Arndt, 2023/06/30)
+++ /dev/null
-Removed: The deprecated signal Triangulation::Signals::cell_weight
-has been removed along with the deprecated class LegacySignal. Use
-Triangulation::Signals::weight instead.
-<br>
-(Marc Fehling, 2023/06/27)
+++ /dev/null
-Removed: The deprecated GridTools::CellDataTransferBuffer class has been removed.
-<br>
-(Daniel Arndt, 2023/06/29)
+++ /dev/null
-Removed: Deprecated constructors for ConsensusAlgorithms::Interface,
-ConsensusAlgorithms::Process, ConsensusAlgorithms::NBX, ConsensusAlgorithms::PEX,
-ConsensusAlgorithms::Serial, ConsensusAlgorithms::Selector have been removed
-as well as ConsensusAlgorithms::AnonymousProcess.
-<br>
-(Daniel Arndt, 2023/06/29)
+++ /dev/null
-Removed: Deprecated functions in the FEInterfaceValues nampespace have been removed.
-<br>
-(Daniel Arndt, 2023/06/29)
+++ /dev/null
-Removed: The deprecated classes FEValuesViews::Scalar::OutputType,
-FEValuesViews::Vector::OutputType,
-FEValuesViews::SymmetricTensor::OutputType,
-have been removed.
-<br>
-(Daniel Arndt, 2023/06/30)
+++ /dev/null
-Removed: The deprecated classes Threads::Thread,
-and Threads::ThreadGroup and the function
-Threads::new_thread() has been removed.
-<br>
-(Daniel Arndt, 2023/07/01)
+++ /dev/null
-Updated: deal.II requires a compiler supporting C++17.
-<br>
-(Daniel Arndt, 2023/07/01)
+++ /dev/null
-Changed: Most of the member functions of FEValues now have different template
-parameters. As a result, some function calls which relied on implicit
-conversions to ArrayView now require explicit conversions instead.
-<br>
-(David Wells, 2023/07/01)
+++ /dev/null
-Removed: The deprecated overloads for DoFTools::extract_boundary_dofs
-returning void have been removed.
-<br>
-(Daniel Arndt, 2023/07/02)
+++ /dev/null
-Removed: The deprecated member variables
-SUNDIALS::KINSOL::solve_jacobian_system,
-and SUNDIALS::IDA::solve_jacobian_system
-have been removed.
-<br>
-(Daniel Arndt, 2023/07/02)
+++ /dev/null
-Removed: The deprecated MatrixFree::FEEvaluation
-and MatrixFreeFaceEvaluation member function taking
-bools instead of EvaluationFlags have been removed.
-<br>
-(Daniel Arndt, 2023/07/02)
+++ /dev/null
-Changed: The overloads of KellyErrorEstimator::estimate() which compute
-multiple vector error estimates at once now require that vectors be passed
-in ArrayView objects of pointers to ReadVector instead of std::vector objects
-of pointers to VectorType objects.
-<br>
-(David Wells, 2023/07/02)
+++ /dev/null
-Removed: The deprecated functions GridReordering::reorder_cells()
-and GridReordering::invert_all_cells_of_negative_grid()
-have been removed.
-<br>
-(Daniel Arndt, 2023/07/03)
+++ /dev/null
-Removed: The deprecated functions
-Triangulation::create_triangulation_compatibility(),
-GridTools::cell_measure(),
-MappingQCache::initialize(),
-TriaAccessor::number_of_children(),
-the deprecated class LinearAlgebra::CommunicationPatternBase
-and the PETScWrappers::PreconditionerBase alias
-have been removed.
-<br>
-(Daniel Arndt, 2023/07/03)
+++ /dev/null
-Removed: The LinearAlgebra::Vector class has been removed without deprecation.
-Users should use the standard Vector class instead.
-<br>
-(David Wells, 2023/07/03)
+++ /dev/null
-Changed: The CMake configuration does no longer export git revision strings
-and dates in `deal.IIConfig.cmake`. This avoids unnecessary
-reconfigurations of client projects (such as the testsuite). Instead the
-git revision strings and dates are now recorded in
-`deal.IIConfigGit.cmake` whose path is recorded in `${DEAL_II_GIT_CONFIG}`.
-This is similar to how we store the git revision in the header
-`deal.II/base/revision.h` instead of `deal.II/base/config.h` to avoid
-unnecessary recompilations of the library and user programs. User project
-who need the information in CMake must do an
-`include(${DEAL_II_GIT_CONFIG})`.
-<br>
-(Matthias Maier, 2023/07/03)
+++ /dev/null
-Removed: The deprecated header files
-- deal.II/base/std_cxx14/algorithm.h
-- deal.II/base/std_cxx14/memory.h
-- deal.II/base/std_cxx14/utility.h
-have been removed.
-<br>
-(Daniel Arndt, 2023/07/13)
+++ /dev/null
-Removed: The methods copy_to_mg, copy_from_mg,
-and interpolate_to_mg used of
-MGTransferGlobalCoarsening and MGTransferMatrixFree
-used to have spacedim as template argument. Since it
-is not used and the underlying functionality did not work,
-it has been removed.
-<br>
-(Peter Munch, 2023/07/21)
+++ /dev/null
-Removed: Support for PETSc without MPI has been removed.
-<br>
-(Daniel Arndt, 2023/07/24)
+++ /dev/null
-Changed: MGTransferMatrixFree::interpolate_to_mg()
-returns now non-ghosted vectors.
-<br>
-(Peter Munch, 2023/07/25)
+++ /dev/null
-Changed: For Triangulations created with
-MGTransferGlobalCoarseningTools::create_geometric_coarsening_sequence(),
-the MeshSmoothing flag Triangulation::eliminate_unrefined_islands will
-be removed. It caused unintentional refinement during coarsening which
-led to problems in GlobalCoarseningFineDoFHandlerView. See also
-<a href="https://github.com/dealii/dealii/issues/15541">#15541</a>.
-<br>
-(Marc Fehling, 2023/08/22)
+++ /dev/null
-Changed: The class FEEvaluation now uses a different internal data layout for
-the gradients, exposed via FEEvaluation::begin_gradients(). Now, the entries
-of the partial derivatives in the space directions are placed adjacent in
-memory. The entries of different components are still separated by the entries
-on all points. This change has been made to simplify the access in the
-FEEvaluation::get_gradient() and FEEvaluation::submit_gradient() functions,
-which is especially useful for the case with many FE components. For the
-regular use of FEEvaluation apart from the plain pointers mentioned above,
-there is no change in behavior.
-<br>
-(Martin Kronbichler, 2023/09/11)
+++ /dev/null
-Removed: The functions evaluate() and integrate() of
-CUDAWrappers::FEEvaluation that take Bools have been
-deprecated and replaced by versions that take
-EvaluationFlags.
-<br>
-(Peter Munch, 2023/10/27)
+++ /dev/null
-Removed: The file `include/deal.II/multigrid/mg_constrained_dofs.h`
-used to include `deal.II/dofs/dof_tools.h` and
-`deal.II/multigrid/mg_tools.h`. This is not the case any more.
-<br>
-(Peter Munch, 2023/10/31)
+++ /dev/null
-Changed: Meshes in 2D now use the face_orientation boolean (instead of the
-face_flip boolean) to represent their orientation.
-<br>
-(David Wells, 2023/12/20)
+++ /dev/null
-Changed: FiniteElement::adjust_quad_dof_index_for_face_orientation(),
-FiniteElement::face_to_cell_index(), and
-FiniteElement::adjust_line_dof_index_for_line_orientation() now use the
-standardized <tt>combined_orientation</tt> orientation encoding as input
-arguments rather than one or three booleans.
-<br>
-(David Wells, 2023/12/21)
+++ /dev/null
-Changed: We have always considered PETSc- and Trilinos-based vectors
-that have ghost elements as immutable, i.e., it is possible to read
-elements (including the ghost elements) but not to write into them. On
-the other hand, the `compress()` function available in all vector
-types is meant to communicate values written into non-locally-owned
-vector elements to their proper owners, for example during assembly of
-a right hand side vector. This `compress()` operation clearly only
-makes sense if a vector does not have ghost elements, because only
-then is it possible to write into the vector at all, but this
-restriction was not enforced -- the `compress()` function simply did
-not do anything at all in these cases. This has now changed: Because
-it does not make sense to call `compress()` on vectors that have ghost
-elements, it is now forbidden to call it and this case will be caught
-by an assertion.
-<br>
-(Wolfgang Bangerth, 2023/12/27)
+++ /dev/null
-Removed: The function FEPointEvaluation::real_point() has been
-renamed to FEPointEvaluation::quadrature_point(). The old function
-has been deprecated.
-<br>
-(Peter Munch, 2024/01/01)
+++ /dev/null
-Removed: The rarely used long double variants `std_cxx17::legendrel` and
-`std_cxx17::cyl_bessel_jl` have been removed due to a compatibility issue
-with boost-1.83. If you happen to use these functions in your project
-you can change to using `std::legendrel` and `std::cyl_bessel_jl` directly,
-which are provided by the C++ standard template library.
-<br>
-(Matthias Maier, 2024/01/08)
+++ /dev/null
-Changed:`ParameterHandler::parse_input_from_json()` reads now a json-file
-without mangled parameter names.
-<br>
-(Magdalena Schreter, Peter Munch, 2024/01/26)
+++ /dev/null
-Changed: SolverGMRES::AdditionalData now controls the size of the Arnoldi
-basis through the new member variable
-SolverGMRES::AdditionalData::max_basis_size, rather than the number of
-temporary vectors (which is the basis size plus 2). As a result, the default
-value of the basis size is now 30, compared to 28 used before. The old
-variable SolverGMRES::AdditionalData::max_n_tmp_vectors is still available,
-but whenever SolverGMRES::AdditionalData::max_basis_size is set to a non-zero
-value (including the value set by the default constructor), the latter takes
-precedence. Furthermore, the default algorithm has been changed from
-the modified Gram-Schmidt algorithm to the classical Gram-Schmidt algorithm.
-The latter uses unconditional reorthogonalization delayed by one step,
-following the algorithm described in @cite Bielich2022.
-<br>
-(Martin Kronbichler, 2024/03/12)
+++ /dev/null
-Removed: The Tensor<0,dim> template had functions `begin_raw()` and
-`end_raw()`, which had been deprecated for a couple of releases
-already. They have been removed now.
-<br>
-Furthermore, the corresponding functions for the general
-Tensor<rank,dim> template have been deprecated. They can still be used
-for the time being, but only for the specific case `rank==1`. This is
-because the underlying assumption of these functions is that tensors
-store their elements in memory in a contiguous fashion, but that is
-only true for the case `rank==1`. Similarly, the `make_array_view()`
-function that takes tensors as input has been marked as deprecated,
-and can only be used for rank-1 tensors from now on.
-<br>
-(Wolfgang Bangerth, 2024/03/26)
+++ /dev/null
-Changed: The Quadrature class used to have a constructor that took an
-integer argument. This was error-prone because it was easy to accidentally
-write
-@code
- Quadrature<dim> quadrature(3);
-@endcode
-where
-@code
- QGauss<dim> quadrature(3);
-@endcode
-was meant. As a consequence, this constructor has been removed from the `public`
-interface of the class.
-<br>
-(Wolfgang Bangerth, 2024/05/13)
+++ /dev/null
-Changed: GridTools::orthogonal_equality() now returns a
-std::optional<unsigned char> instead of a
-std::optional<std::bitset<3>>. As a consequence,
-PeriodicFacePair now also stores an unsigned char instead of
-a std::bitset<3> to represent the relative orientation of the first face to the
-second face.
-<br>
-(David Wells, 2024/05/25)
+++ /dev/null
-Changed: The GridIn::read() function variant taking a filename string no
-longer uses PathSearch to try to find an appropriate file. Instead, the
-function requires now that the filename string is a valid relative or
-absolute path to mesh file in question. Additionally, GridIn::read() now
-throws ExcFileNotOpen instead of PathSearch::FileNotFound.
-<br>
-(Matthias Maier, 2024/01/08)
+++ /dev/null
-Changed: ParameterHandler::read_in() now throws a ExcFileNotOpen exception
-instead of PathSearch::ExcFileNotFound.
-<br>
-(Matthias Maier, 2024/01/08)
+++ /dev/null
-New: Added classes for conforming Hermite interpolation polynomials, allowing for higher levels of regularity between elements to be directly enforced.
-<br>
-(Ivy Weber, 2023/06/21)
+++ /dev/null
-New: All vector classes in deal.II now inherit from ReadVector, which provides
-some common read operations.
-<br>
-(David Wells, 2023/07/01)
+++ /dev/null
-Deprecated: The entire LocalIntegrators namespace has been
-deprecated. The namespace represents an effort at making integration
-simpler by providing a library of terms that appear frequently in
-equations. But this only made the simple case simple -- everything
-that exceeded the simplest case still needed to be done by hand, and
-using these pre-built integrators did not help teaching how to do
-that. As a consequence, these pre-built integrators will be removed in
-a future version of the library.
-<br>
-(Wolfgang Bangerth, 2023/07/03)
+++ /dev/null
-Removed: Some, but not all, of the vector classes were derived from a
-base class VectorSpaceVector. This class had been intended to provide
-an abstract interface (via `virtual` functions) to vector-vector
-operations such as dot products or norms. But it turns out that that
-is not practical in many cases: Functions still need to either have
-access to individual elements of the vector, or they need to be able
-to do matrix-vector products. As a consequence, it is rarely useful to
-only have a reference to the base class VectorSpaceVector: One
-actually needs a reference to the derived class. Because of this lack
-of use, we have removed the VectorSpaceVector base class from the
-library.
-<br>
-(Wolfgang Bangerth, 2023/07/06)
+++ /dev/null
-New: The new tutorial step-87 presents the advanced point evaluation
-functionalities of deal.II, specifically useful for evaluating
-finite element solutions at arbitrary points on distributed meshes.
-<br>
-(Magdalena Schreter-Fleischhacker, Peter Munch, 2023/09/05)
+++ /dev/null
-New: FE_SimplexP and FE_SimplexDGP now support cubic elements.
-<br>
-(David Wells and Peter Munch, 2023/10/11)
+++ /dev/null
-New: LinearAlgebra::TpetraWrappers::SparseMatrix class
-that implements a wrapper for Tpetra::CrsMatrix.
-<br>
-(Sebastian Kinnewig, 2023/11/22)
-
+++ /dev/null
-New: The new tutorial step-89 presents the use of FERemoteEvaluation during matrix-free operator
-evaluation for non-matching and Chimera methods. The acoustic conservation equations are solved
-using Nitsche-type mortaring and point-to-point interpolation to demonstrate that
-a simple point-to-point interpolation approach is sometimes not sufficient.
-<br>
-(Johannes Heinz, Maximilian Bergbauer, Marco Feder, Peter Munch, 2023/11/27)
+++ /dev/null
-New: Introduce FERemoteEvaluation. This new class provides similar
-interfaces as FEEvaluation, FEFaceEvaluation, and FEPointEvaluation.
-It can be used to access values and/or gradients in quadrature points
-at remote triangulations. In particular the class is designed such that
-it can also be used for Nitsche-type mortaring or L2-Projection with
-CGAL in the future.
-<br>
-(Johannes Heinz, Peter Munch, 2023/11/27)
+++ /dev/null
-New: Support for hanging nodes in FE_NedelecSZ.
-<br>
-(Sebastian Kinnewig, 2023/11/28)
+++ /dev/null
-New: There is now a function-like macro `DEAL_II_NOT_IMPLEMENTED();`
-that can be used to indicate places where something is not
-implemented. If a code runs into a place where it appears, the program
-is aborted (or, as documented, an exception is thrown). In contrast to
-the old way of indicating such a thing (namely, writing
-`Assert(false, ExcNotImplemented());`, the error is raised even in
-release mode.
-<br>
-Similarly, there is now also `DEAL_II_ASSERT_UNREACHABLE()` that is used
-in places that control flow really should not reach, but where it is
-best to abort a program if it does.
-<br>
-(Wolfgang Bangerth, 2024/01/24)
+++ /dev/null
-Updated: The version of BOOST bundled with deal.II has been updated from 1.70
-to 1.84.
-<br>
-(Wolfgang Bangerth, 2024/04/04)
+++ /dev/null
-New: LinearAlgebra::TpetraWrappers direct solver interfaces
-for Trilinos Amesos2, as listed below
-<dl>
- <dt>SolverDirect</dt>
- <dd>- Same interface as TrilinosWrappers, but with the option to pass a parameter list</dd>
- <dt>SolverDirectKLU2</dt>
- <dd>- An interface to the KLU2 solver, providing solver-specific AdditionalData</dd>
-</dl>
-(Jan Philipp Thiele, 2024/02/12)
\ No newline at end of file
+++ /dev/null
-Updated: Tetrahedral meshes are now refined quasi-uniformly, preventing degradation
-with higher refinement levels. The changes also include the relevant adjustments in the
-geometric multigrid infrastructure.
-<br>
-(Dominik Still, Niklas Fehn, Peter Munch, Martin Kronbichler, Wolfgang Bangerth, 2024/05/10)
\ No newline at end of file
+++ /dev/null
-New: step-1 and step-3 now discuss how to use triangular meshes in their "Results" sections.
-<br>
-(Wolfgang Bangerth, 2024/05/13)
+++ /dev/null
-New: LinearAlgebra::TpetraWrappers preconditioner interfaces
-for Trilinos Ifpack2, as listed below:
-<ul>
- <li>Preconditioners that were also available in the old interface.
- <ul>
- <li>PreconditionIdentity</li>
- <li>PreconditionJacobi</li>
- <li>PreconditionSOR</li>
- <li>PreconditionSSOR</li>
- <li>PreconditionChebyshev</li>
- <li>PreconditionILU</li>
- <li>PreconditionILUT</li>
- <li>PreconditionBlockJacobi</li>
- <li>PreconditionBlockSOR</li>
- <li>PreconditionBlockSSOR</li>
- </ul>
- </li>
- <li>Newly introduced preconditioners
- <ul>
- <li>PreconditionL1Jacobi<br>
- - A new variant to improve coupling in MPI-parallel applications</li>
- <li>PreconditionL1GaussSeidel<br>
- - A new variant to improve coupling in MPI-parallel applications</li>
- <li>PreconditionIfpack<br>
- - A generic Ifpack2 preconditioner for any
- classes or parameters not interfaced (yet)</li>
- </ul>
- </li>
-</ul>
-(Jan Philipp Thiele, 2024/07/18)
\ No newline at end of file
+++ /dev/null
-New: Added a function DoFTools::map_boundary_to_bulk_dof_iterators() that
-generates a mapping of codimension-1 active DoFHandler cell iterators to
-codimension-0 cells and face indices, to couple DoFHandler objects of different
-co-dimensions, initialized on grids generated with
-GridTools::extract_boundary_mesh()
-<br>
-(Luca Heltai, 2023/04/12)
+++ /dev/null
-Fixed: The function IndexSet::add_indices() was not efficient when
-adding sets of indices that are sorted but contain duplicates. This is
-now fixed.
-<br>
-(Wolfgang Bangerth, 2023/06/20)
+++ /dev/null
-Fixed: MGTwoLevelTransfer used within the global coarsening multigrid
-framework did not work when deal.II was compiled without MPI or when MPI_Init
-was not called. This is now fixed.
-<br>
-(Martin Kronbichler, 2023/06/28)
+++ /dev/null
-Fixed: It was previously possible to access the return value of a
-Threads::Task object if the underlying task had ended with an
-exception. But that return value was not initialized. This is now
-checked: You can no longer call Threads::Task::return_value() after an
-exception.
-<br>
-(Wolfgang Bangerth, 2023/06/30)
+++ /dev/null
-Fixed: IndexSet::add_index() would not recognize single indices already added,
-leading to an unnecessary quadratic complexity in case the same entry is added
-many times. This is now fixed.
-<br>
-(Martin Kronbichler, 2023/06/30)
+++ /dev/null
-Improved: The `deal_ii_pickup_tests()` macro now prints a status line at
-the end summarizing how many tests have been configured for the given test
-category. Similarly, the top level target `setup_tests` concatenates these
-status lines and prints a summary after invocation.
-<br>
-(Matthias Maier, 2023/06/30)
+++ /dev/null
-Changed: The constructor of the
-PETScWrappers::PreconditionSSOR::AdditionalData class is now
-`explicit`, thereby disallowing the implicit conversion of a number
-(the relaxation factor) to an object of this type.
-<br>
-(Wolfgang Bangerth, 2023/07/01)
+++ /dev/null
-Fixed: The SolutionTransfer class writes into output vectors, but does
-not call compress() on them. This is of no consequence for deal.II
-vectors for which this class is mostly used (in contrast to the
-parallel::distributed::SolutionTransfer class), but leads to awkward
-downstream failures with, for example, PETSc vectors. This is now
-fixed.
-<br>
-(Wolfgang Bangerth, 2023/07/01)
+++ /dev/null
-Deprecated: The CellStatus enumeration has been deprecated in the Triangulation<dim, spacedim> class and moved to the global deal.II namespace. As a consequence, all references to Triangulation<dim, spacedim>, parallel::distributed::Triangulation<dim, spacedim>::CellStatus, and similar should be updated to use CellStatus directly. Also, the enumeration values have been renamed: CELL_PERSIST -> cell_will_persist, CELL_REFINE -> cell_will_be_refined, CELL_COARSEN -> children_will_be_coarsened, CELL_INVALID -> cell_invalid).
-<br>
-(Pasquale Claudio Africa, 2023/07/03)
+++ /dev/null
-Improvement: Step-68 now uses the FEPointEvaluation to calculate the particle velocity from the velocity solution instead of manually interpolating at the particle location.
-<br>
-(Bruno Blais, 2023/07/0)
+++ /dev/null
-Fixed: FETools::get_fe_by_name() now works also for simplex finite elements.
-<br>
-(Luca Heltai, 2023/07/08)
+++ /dev/null
-New: Added InitFinalize class. This class is similar to MPI_InitFinalize but it
-allows users to decide which libraries should be initialized/finalized by the
-class.
-<br>
-(Bruno Turcksin, 2023/07/13)
+++ /dev/null
-New: Created a new class FECouplingValues, that helps with assembling of coupled
-finite element methods across different dimensions or different grids.
-<br>
-(Luca Heltai, 2023/07/21)
+++ /dev/null
-New: Similar to the DataOut::add_data_vector() case,
-DataOut::add_mg_data_vector() now also copies the vector
-and performs the ghost-vector update internally.
-<br>
-(Peter Munch, 2023/07/25)
+++ /dev/null
-Improvement: Added gradient() implementation to VectorFunctionFromTensorFunction in
-function.h file.
-<br>
-(Abbas Ballout, 2023/07/30)
+++ /dev/null
-New: The function Triangulation::contains_cell()
-allows to check if Tringulation::create_cell_iterator()
-can be called for a specific cell id.
-<br>
-(Peter Munch, 2023/08/01)
+++ /dev/null
-New: The new function Triangulation::as_dof_handler_level_iterator()
-allows to create level iterators based on other cell iterators.
-<br>
-(Peter Munch, 2023/08/01)
+++ /dev/null
-Improved: GridTools::find_active_cell_around_point() and
-GridTools::find_all_active_cells_around_point() now also work
-for simplices.
-<br>
-(Peter Munch, David Wells, 2023/07/25)
+++ /dev/null
-New: The new class FEValuesViews::RenumberedView allows one to filter an existing
-FEValuesViews object via two renumbering vectors, one acting on the degrees of
-freedom, and the other acting on the quadrature points.
-<br> (Luca Heltai, 2023/08/02)
+++ /dev/null
-New: MGTwoLevelTransferNonNested now also supports FE_SimplexP.
-<br>
-(Peter Munch, Marco Feder, 2023/08/02)
+++ /dev/null
-New: Added a function extract_children_of_level() that returns the bounding boxes associated to the children of a given level of an Rtree and stores them in a vector.
-<br>
-(Marco Feder, 2023/08/10)
+++ /dev/null
-Improved: deal.II now has a flag DEAL_II_USE_VECTORIZATION_GATHER to control
-the use of gather/scatter instructions on the x86 architecture. On a wide
-range of Intel hardware with microcode mitigation for the Intel Gather Data
-Speculation (GDS, aka Downfall) side channel vulnerability, in particular,
-server processors of the Broadwell, Skylake, Cascade Lake, and Ice Lake
-families released between 2015 and 2021, these instructions can be much slower
-than scalar loads. While the default behavior of deal.II is to aggressively
-enable these instructions in the intrinsics-class VectorizedArray, the new
-variable can be used to disable their use if deemed to give better
-performance.
-<br>
-(Martin Kronbichler, Matthias Maier, 2023/08/14)
+++ /dev/null
-Improved: The classes MGSmootherRelaxation and mg::SmootherRelaxation can now
-also handle matrices of types `MGLevelObject<std::unique_ptr<...>>` or
-`MGLevelObject<std::shared_ptr<...>>` in their `initialize()` functions by the
-use of Utilities::get_underlying_value(), rather than MGLevelObject of the
-actual matrix type only.
-<br>
-(Martin Kronbichler, 2023/08/16)
+++ /dev/null
-New: The Rayleigh--Kothe vortex has been extracted
-from step-68 and is now available as the new class
-Functions::RayleighKotheVortex.
-<br>
-(Bruno Blais, Peter Munch, 2023/08/20)
+++ /dev/null
-Changed: You can now set MeshSmoothing flags in non-empty triangulations
-with Triangulation::set_mesh_smoothing().
-<br>
-(Marc Fehling, 2023/08/22)
+++ /dev/null
-New: Add two tensor functions for the split of a 2nd-order symmetric tensor
-into a positive part and a negative part based on the signs of the eigenvalues
-obtained from the spectrum decomposition. The function positive_negative_split()
-performs the positive-negative split of the 2nd-order symmetric tensor given as
-the input. The function positive_negative_projectors() not only performs the split,
-but also provides the derivatives (two fourth-order tensors) of the positive/negative
-part of the tensor with respect to the input tensor.
-<br>
-(Tao Jin, 2023/08/22)
+++ /dev/null
-New: The function IndexSet::is_subset_of() does as its name suggests.
-<br>
-(Wolfgang Bangerth, 2023/08/24)
+++ /dev/null
-Improved: VectorizedArray now also supports ARM Neon intrinsics.
-<br>
-(Maximilian Bergbauer, Peter Munch, 2023/08/24)
+++ /dev/null
-Fixed: MGTwoLevelTransferBase now preserves the
-ghost state of the source vector in all call scenarios.
-<br>
-(Richard Schussnig, Martin Kronbichler, Peter Munch, 2023/09/04)
+++ /dev/null
-Changed: IndexSet objects could only be compared for equality or
-inequality against other IndexSet objects that had the same size. This
-did not allow for comparison against default-constructed objects, for
-example to test whether an object had been initialized. The
-restriction is therefore relaxed: IndexSet objects can be compared for
-equality and inequality against objects of the same size, or or size
-zero.
-<br>
-(Wolfgang Bangerth, 2023/09/07)
+++ /dev/null
-Fixed: FEValues requesting only mapping information but initialized with
-elements derived from FE_PolyTensor would previously run into an assertion on
-unstructured 2d meshes. This is now fixed.
-<br>
-(Martin Kronbichler, 2023/09/07)
+++ /dev/null
-Improved: The internal implementation of the tensor-product evaluators used
-for FEEvaluation and FEFaceEvaluation has been cleaned up. This reduces the
-compile times for both the deal.II library and code using FEEvaluation with
-template parameters on the polynomial degrees. Also, the code is now simpler
-to maintain, especially for the evaluators for Raviart-Thomas elements.
-<br>
-(Martin Kronbichler, 2023/09/11)
+++ /dev/null
-Improved: FEEvaluation::get_gradient() and FEEvaluation::submit_gradient() are
-now considerably faster for Raviart-Thomas elements on non-Cartesian meshes.
-The previous algorithm used non-optimal loop layouts for the local tensor
-contractions in the derivative of the Piola transform, which have been
-transformed to optimal-complexity variants.
-<br>
-(Martin Kronbichler, 2023/09/12)
+++ /dev/null
-Added: A new function shink_to_fit() was added to AlignedVector
-in analogy to std::vector.
-<br>
-(Maximilian Bergbauer, 2023/09/14)
+++ /dev/null
-New: Added QGaussRadau quadrature up to and including 8 quadrature points.
-<br>
-(Jan Philipp Thiele, 2023/09/15)
+++ /dev/null
-Changed: The interface to QGaussRadauChebyshev<dim>
-now matches that of the new quadrature QGaussRadau<dim>.
-<br>
-(Jan Philipp Thiele, 2023/09/16)
+++ /dev/null
-New: Added helper class RemotePointEvaluation::CellData to store
-and access data of cell-specific points.
-<br>
-(Magdalena Schreter, Peter Munch, 2023/09/17)
+++ /dev/null
-New: Add alternative interfaces to RemotePointEvaluation::evaluate_and_process and
-RemotePointEvaluation::process_and_evaluate.
-<br>
-(Magdalena Schreter, Peter Munch, 2023/09/17)
+++ /dev/null
-Improved: SparsityTools::reorder_Cuthill_McKee now runs considerably faster,
-especially for the case with many couplings between matrix rows.
-<br>
-(Martin Kronbichler, 2023/09/20)
+++ /dev/null
-New: The function IndexSet::get_view() now has an overload that
-computes the view with regard to an arbitrary mask.
-<br>
-(Wolfgang Bangerth, 2023/10/02)
+++ /dev/null
-New: The new function AffineConstraints::add_constraint() adds an
-entire constraint all at once, rather than splitting the task across
-AffineConstraint::add_line(), multiple calls to
-AffineConstraint::add_entry(), and
-AffineConstraint::set_inhomogeneity(). The new function
-AffineConstraints::constrain_dof_to_zero() is a short-cut that adds a
-constraint that requires a specific degree of freedom to be zero.
-<br>
-(Wolfgang Bangerth, 2023/10/05)
+++ /dev/null
-Improved: MGTransferMF can now permute DoFs during
-MGTransferMF::copy_to_mg(), MGTransferMF::copy_to_mg(),
-and MGTransferMF::interpolate_to_mg() if the outer
-solver and the multigrid preconditioner have been set up
-with different DoFHandler objects.
-<br>
-(Peter Munch, Laura Prieto Saavedra, 2023/10/03)
+++ /dev/null
-Added: An output operator was added to DerivativeForm.
-<br>
-(Maximilian Bergbauer, 2023/10/04)
+++ /dev/null
-Added: An option to sum into the solution values vector was added
-to FEPointEvaluation integrate() and test_and_sum().
-<br>
-(Maximilian Bergbauer, 2023/10/04)
+++ /dev/null
-New: The function AffineConstraints::get_view() can be used to obtain
-the constraints that correspond to a specific subset of degrees of
-freedom.
-<br>
-(Wolfgang Bangerth, 2023/10/05)
+++ /dev/null
-New: The ArrayView class now has a constructor that allows creation of
-an ArrayView object from a `std::initializer_list`.
-<br>
-(Wolfgang Bangerth, 2023/10/10)
+++ /dev/null
-Fixed: The querying of line orientations in the case
-of tetrahedra has been fixed.
-<br>
-(Peter Munch, David Wells, 2023/10/10)
+++ /dev/null
-New: The ArrayView class now has a constructor that allows creation of
-an ArrayView object from a `boost::container::small_vector`.
-<br>
-(Wolfgang Bangerth, 2023/10/24)
+++ /dev/null
-New: The print_formatted() functions of the following matrix classes
-now offer the option to specify a string that separates row entries:
-<br>
-SparseMatrixEZ, SparseMatrix, LAPACKFullMatrix, FullMatrix,
-ChunkSparseMatrix, BlockSparseMatrix, CUDAWrappers::SparseMatrix
-<br>
-(Marc Fehling, 2023/10/15)
+++ /dev/null
-New: New constructor for IndexSet that takes a
-Teuchos::RCP<Tpetra::Map> as input. And the
-function IndexSet::make_tpetra_map_rcp()
-returning a Teuchos::RCP<Tpetra::Map>.
-<br>
-(Sebastian Kinnewig, 2023/10/17)
+++ /dev/null
-New: LinearAlgebra::TpetraWrappers::VectorReference for easier access
-to LinearAlgebra::TpetraWrappers::Vector. Moreover, several
-new member functions are introduced to LinearAlgebra::TpetraWrappers::Vector
-to be used as the "VectorType" template argument in AffineConstraints.
-<br>
-(Sebastian Kinnewig, 2023/10/18)
+++ /dev/null
-Fixed: There was an inconsistency between the way
-DoFTools::make_periodicity_constraints() and MGConstrainedDoFs
-set up the constraints for periodic constraints. This is fixed
-now.
-<br>
-(Peter Munch, Laura Prieto Saavedra, 2023/10/19)
+++ /dev/null
-Fixed: The periodic faces information was not being copied
-when using the `Triangulation::copy_triangulation()` function. This is now fixed.
-<br>
-(Laura Prieto Saavedra, Peter Munch, 2023/10/19)
+++ /dev/null
-New: A new wrapper class Lazy<T> provides an efficient, thread-safe
-mechanism for lazy initialization of objects.
-<br>
-(Matthias Maier, 2023/10/25)
+++ /dev/null
-New: The new function RefinementCase::all_refinement_cases() returns
-an array of all possible refinement options of a cell.
-<br>
-(Wolfgang Bangerth, 2023/10/26)
+++ /dev/null
-New: There is a new overload of Threads::new_task() that takes lambda
-functions taking arguments, followed by the arguments the lambda
-function is to be called with on a new task.
-<br>
-(Wolfgang Bangerth, 2023/10/30)
+++ /dev/null
-Fixed: It was not possible to compare non-const iterators into block
-sparse matrices because a `friend` declaration referred to the wrong
-class. This is now fixed.
-<br>
-(Wolfgang Bangerth, Simon Wiesheier, 2023/10/31)
+++ /dev/null
-Fixed: A mistake in marking a `private` member function of the
-SphericalManifold class made it impossible to derive from this class
-in any meaningful way. This is now fixed.
-<br>
-(Wolfgang Bangerth, 2023/11/09)
+++ /dev/null
-Improved: Point now supports constexpr construction and evaluation,
-just like Tensor.
-<br>
-(Chengjiang Yin, 2023/11/09)
+++ /dev/null
-Fixed: In step-41, the mass matrix B is missing in the expressions
-of the residuals of the nonlinear system. See the equation under the
-line "This suggest a semismooth Newton step of the form" in the tutorial.
-This is fixed.
-<br>
-(Tao Jin, 2023/11/12)
+++ /dev/null
-Fixed: MatrixFree::get_cell_active_fe_index did not
-return the correct value when used with categorization
-of cells. This affects also MFTools::compute_diagonal().
-This is now fixed.
-<br>
-(David Schneider, 2023/11/13)
+++ /dev/null
-New: Introduce a new function, Utilities::Trilinos::internal::make_rcp(),
-to create Teuchos::RCP objects, avoiding the usage of 'operator new'.
-<br>
-(Sebastian Kinnewig, 2023/11/15)
+++ /dev/null
-New: Introduce a new function, Utilities::Trilinos::teuchos_comm_to_mpi_comm(),
-to convert a Teuchos::RCP<Teuchos::Comm<int>> communicator into an MPI_Comm communicator.
-<br>
-(Sebastian Kinnewig, 2023/11/20)
+++ /dev/null
-Fixed: Meshes created with GridGenerator::torus() would previously run
-into an assertion in p4est when using parallel::distributed::Triangulation. This
-is now fixed.
-<br>
-(Martin Kronbichler, Mathias Anselmann, Peter Munch, 2023/11/22)
+++ /dev/null
-New: The FEValuesBase class now lazily computes the FEValuesViews
-objects it returns when you do something like `fe_values[velocities]`,
-whenever they are needed first, rather than *always* creating these
-objects.
-<br>
-(Wolfgang Bangerth, 2023/11/28)
+++ /dev/null
-New: Add AdditionalData struct for configuring the RemotePointEvaluation class.
-The latter is passed into a new constructor.
-Deprecated: The old constructor of RemotePointEvaluation class taking the
-parameters value-by-value is marked as deprecated.
-<br>
-(Magdalena Schreter-Fleischhacker, Peter Munch, 2023/12/06)
+++ /dev/null
-Fixed: When creating triangulations in dim=1 and spacedim=3, the
-Triangulation class would sometimes crash because of a code path that
-should not have been taken. This is now fixed.
-<br>
-(Vinayak Vijay, Wolfgang Bangerth, 2023/11/28)
+++ /dev/null
-New: There is now a function Utilities::MPI::partial_and_total_sum().
-<br>
-(Wolfgang Bangerth, 2023/12/19)
+++ /dev/null
-Fixed: Exceptions of type RecoverableUserCallbackError, raised in
-callbacks `solve_with_jacobian` and
-`solve_with_jacobian_and_track_n_linear_iterations` of the
-TrilinosWrappers::NOXSolver class, are now treated as "recoverable",
-if the NOX parameter "Newton/Rescue Bad Newton Solve" is set to `true`,
-which is, in fact, its default value. Exceptions of all other types and
-also all exceptions raised in other callbacks are still treated as
-"irrecoverable".
-<br>
-(Vladimir Ivannikov, 2023/12/26)
+++ /dev/null
-Improved: convert_to_distributed_compute_point_locations_internal() takes a pointer to a vector
-of quadratures as an additional argument. In case this pointer is not a null pointer, the vector is
-populated by the mapped quadratures that are internally used during the conversion.
-<br>
-(Johannes Heinz, 2023/12/29)
-
+++ /dev/null
-New: Add utility functions that setup FERemoteEvaluationCommunicator for point-to-point
-interpolation and Nitsche-type mortaring.
-<br>
-(Johannes Heinz, 2023/12/31)
+++ /dev/null
-Fixed: In parallel computations, it was not possible to take the end
-iterator of a Trilinos sparsity pattern for the last locally-owned
-row. This is now fixed.
-<br>
-(Simon Wiesheier, Peter Munch, 2024/01/07)
+++ /dev/null
-Changed:
-parallel::distributed::Triangulation::prepare_coarsening_and_refinement()
-is now a collective call that exchanges coarsen/refinement flags on
-ghost cells. This makes adaptive refinement independent of the number
-of MPI ranks involved.
-<br>
-(Timo Heister, Quang Hoang, Vladimir Yushutin, 2024/01/15)
+++ /dev/null
-Changed:
-FE_DGQ::get_interpolation_matrix() now also takes as a source element FE_Nothing.
-<br>
-(Magdalena Schreter, Peter Munch, 2024/01/18)
+++ /dev/null
-Fixed: The function DoFCellAccessor::distribute_local_to_global(local_matrix, local_vector, global_matrix, global_vector) mistook the argument type when calling OutputMatrix::add(row, n_cols, col_indices, values), which causes compile errors. This is now fixed.
-<br>
-(Yimin Jin, 2024/01/23)
+++ /dev/null
-Fixed: Fix initialization of FEFaceEvaluation for hp in 3D.
-<br>
-(Maximilian Bergbauer, Peter Munch, Andreas Ritthaler, Magdalena Schreter-Fleischhacker, 2024/02/09)
+++ /dev/null
-Deprecated: Matrix Free classes previously in the CUDAWrappers namespace have
-been moved to the Portable namespace.
-<br>
-(Bruno Turcksin, 2024/02/09)
+++ /dev/null
-New: If the relaxation parameter is set to 0,
-PreconditionRelaxation now determines it based on
-estimated eigenvalues, similarly as PreconditionChebyshev
-does.
-<br>
-(Peter Munch, Laura Prieto Saavedra, 2024/03/09)
+++ /dev/null
-New: Add capacity to colorize boundary in GridGenerator::cylinder_shell
-<br>
-(Bruno Blais, 2023/02/12)
+++ /dev/null
-Fixed: The function GridTools::compute_active_cell_halo_layer() now
-also supports perodic meshes.
-<br>
-(Peter Munch, 2024/02/12)
+++ /dev/null
-New: Add potentially more efficient vector operation to SUNDIALS wrappers. These operations are used automatically
-for deal.II's distributed vectors.
-<br>
-(Sebastian Proell, 2024/02/15)
+++ /dev/null
-Fixed: Added some instantiations to "sparse_matrix.inst.in"
-such that copying real sparse matrices into complex sparse matrices
-and performing matrix vector operations of a complex sparse matrix
-with a real vector into a complex vector are possible now.
-<br>
-(Malik Scheifinger, 2024/02/16)
+++ /dev/null
-Fixed: Fix make_flux_sparsity_pattern for a FECollection containing FE_Nothing elements.
-<br>
-(Magdalena Schreter-Fleischhacker, Andreas Ritthaler, 2024/02/19)
+++ /dev/null
-New: There is now functions VectorTools::interpolate_to_coarser_mesh()
-and VectorTools::interpolate_to_finer_mesh() that, different from
-VectorTools::interpolate_to_different_mesh() also work for parallel
-triangulations.
-<br>
-(Wolfgang Bangerth, 2024/02/20)
+++ /dev/null
-Fixed: In a special case where a particle lies on a vertex, the ParticleHandler detected it as lost.
-We introduce a tolerance for GeometryInfo<dim>::is_inside_cell() inside the ParticleHandler to fix this issue.
-<br>
-(Magdalena Schreter-Fleischhacker, Julian Brotz, 2024/02/22)
+++ /dev/null
-Fixed: The colorize option for the cylinder shell could yield inadequate boundary ID for some aspect ratios that were very different from the default one.
-<br>
-(Bruno Blais, 2024/02/27)
+++ /dev/null
-Fixed: The function hp::Refinement::limit_p_level_difference() now
-correctly sets future FE indices in case of p-coarsening.
-<br>
-(Marc Fehling, 2024/02/29)
+++ /dev/null
-Improved: The parse functions of ParameterHandler used to add subsections
-if subsections/parameters have not been defined. This led to an output
-of ParameterHandler::print_parameters() that also contained these subsections.
-This is not the case anymore.
-<br>
-(Peter Munch, Magdalena Schreter-Fleischhacker, 2024/02/12)
+++ /dev/null
-Fixed: The memory of particles which are deleted during refinement was not
-correctly freed in the memory pool. This could lead to a minor memory leak and
-error messages about an inconsistent state during destruction of the property
-pool. This is fixed now.
-<br>
-(Rene Gassmoeller, 2024/03/07)
+++ /dev/null
-Improved: The implementations of SolverGMRES and SolverFGMRES have been
-overhauled and made more similar. In particular, SolverFGMRES now uses the
-same internal algorithm to solve the minimization problem in the Arnoldi
-basis, employing Givens rotations in analogy to the setting used by
-SolverGMRES. Since the Arnoldi process is sensitive to roundoff errors, this
-change might slightly affect iteration counts (often giving slightly better
-results).
-<br>
-(Martin Kronbichler, 2024/03/12)
+++ /dev/null
-Changed: hp::Refinement::choose_p_over_h() now communicates
-refinement flags and future FE indices on ghost cells for
-all types of parallel Triangulation objects to decide between
-p- and h-refinement.
-<br>
-(Marc Fehling, 2024/03/18)
+++ /dev/null
-New: SolverGMRES and SolverFGMRES can now use an additional orthogonalization
-strategy, controlled by
-LinearAlgebra::OrthogonalizationStrategy::delayed_classical_gram_schmidt. This
-implements the classical Gram-Schmidt method with delayed reorthogonalization,
-a low-synchronization algorithm (performing one global reduction per GMRES
-iteration for deal.II's own vectors) that has excellent stability properties.
-<br>
-(Martin Kronbichler, 2024/03/19)
+++ /dev/null
-Changed: The class FEEvaluationAccess, which was previously used to control
-access to values, gradients and Hessians at quadrature points in specialized
-form for scalar, vector-valued and general n-component system, has been merged
-into the class FEEvaluationBase, using conditional types deduced from
-std::conditional. This should not change any application code, but reduced the
-amount of code by 1,500 lines, thus making the library simpler to maintain.
-<br>
-(Martin Kronbichler, Magdalena Schreter-Fleischhacker, 2024/03/22)
+++ /dev/null
-Fixed: Utilities::unpack() could result in a segmentation fault for
-objects that have alignment greater than the default. This is now fixed.
-<br>
-(Wolfgang Bangerth, 2024/03/24)
+++ /dev/null
-New: Add GridGenerator::plate_with_a_hole, GridGenerator::channel_with_cylinder,
-and GridGenerator::hyper_ball_balanced to the python wrappers
-<br>
-(Bruno Turcksin, 2024/03/27)
-
+++ /dev/null
-Improved: Several functions in MappingCartesian have been carefully rewritten
-for better performance, e.g., by avoiding divisions and making use of recurring
-operations.
-<br>
-(Martin Kronbichler, 2024/04/01)
+++ /dev/null
-Improved: VectorTools::interpolate is now faster for the case of a DoFHandler
-based on an FESystem with a single base element that has classical support
-points (like FE_Q or FE_DGQ).
-<br>
-(Martin Kronbichler, 2024/04/03)
+++ /dev/null
-New: The new function DoFTools::extract_level_constant_modes()
-allows to extract constant modes on multigrid levels.
-<br>
-(Peter Munch, 2024/04/07)
+++ /dev/null
-New: Add GridGenerator::cylinder, GridGenerator::subdivided_cylinder,
-and GridGenerator::truncated_cone to the python wrappers
-<br>
-(Bruno Turcksin, 2024/04/11)
-
+++ /dev/null
-New: Added get_prolongation_matrix() to FE_NedelecSZ.
-
-<br>
-(Sebastian Kinnewig, 2024/04/16)
-
+++ /dev/null
-New: Added get_shape_value_component(), get_shape_grad_component()
-and get_shape_grad_grad_component() to FE_NedelecSZ.
-
-<br>
-(Sebastian Kinnewig, 2024/04/16)
-
+++ /dev/null
-Fixed: When accessing elements of Trilinos vectors that do not exist
-on the current MPI process (for example because a function *expects* a
-vector with ghost elements but got a completely distributed vector
-instead), deal.II tries to produce a reasonable error message pointing
-out the cause. But when using 64-bit indices, the logic that creates
-the error message was faulty, resulting in errors that were very hard
-to debug and not helpful at all. This is now fixed.
-<br>
-(Wolfgang Bangerth, 2024/04/17)
+++ /dev/null
-New: deal.II is now compatible with SUNDIALS v7.0.0.
-<br>
-(Marc Fehling, 2024/04/17)
+++ /dev/null
-New: There is a new function ThreadLocalStorage::get_for_thread() that
-returns the thread-local object of another thread.
-<br>
-(Wolfgang Bangerth, 2024/04/24)
+++ /dev/null
-Changed: Several tutorials (step-15, step-72, step-77) dealing with
-nonlinear problems have been simplified by using AffineConstraints
-for boundary conditions.
-<br>
-(Timo Heister, 2024/05/11)
+++ /dev/null
-Changed: step-39 now implements the local integration routines itself,
-rather than relying on deprecated concepts from namespace
-LocalIntegrator.
-<br>
-(Wolfgang Bangerth, 2024/05/13)
+++ /dev/null
-Fixed: FE_SimplexP::get_restriction_matrix() now returns the correct restriction matrix
-for continuous elements, which differs compared to discontinuous elements.
-<br>
-(Dominik Still, Martin Kronbichler, 2024/05/15)
+++ /dev/null
-Deprecated: The member variables `input_vector_names` and
-`output_names` of MeshWorker::LocalIntegrator are not used in the
-library. They are now deprecated. If you use them, simply introduce
-variables of the same name and type in your own derived class.
-<br>
-(Wolfgang Bangerth, 2024/05/14)
+++ /dev/null
-New: Added overloads of missing trigonometric functions (acos, asin, atan) and
-hyperbolic functions (cosh, sinh, tanh, acosh, asinh, atanh) for VectorizedArray.
-<br>
-(Magdalena Schreter-Fleischhacker, Johannes Resch, Martin Kronbichler 2024/05/15)
+++ /dev/null
-New: MatrixFreeTools::compute_diagonal() and MatrixFreeTools::compute_matrix()
-can now handle face and boundary integrals needed for DG.
-<br>
-(Peter Munch, Magdalena Schreter-Fleischhacker, 2024/05/16)
+++ /dev/null
-Deprecated: Namespace FETools::Compositing had three functions
-FETools::Compositing::multiply_dof_numbers(),
-FETools::Compositing::compute_restriction_is_additive(), and
-FETools::Compositing::compute_nonzero_components() that took pointers to five
-finite elements and five multiplicities. These have now been
-deprecated in favor of the versions of these functions that take a
-vector of elements and a vector of multiplicities.
-<br>
-(Wolfgang Bangerth, 2024/05/19)
+++ /dev/null
-New: There is a new class Threads::TaskResult that represents the
-result of a background task.
-<br>
-(Wolfgang Bangerth, 2024/05/21)
+++ /dev/null
-Fixed: The SUNDIALS::ARKODE::solve_ode() function returned the number
-of time steps at which the intermediate output function was called,
-rather than the number of time steps performed as promised in the
-documentation. This has now been fixed.
-<br>
-The same bug also existed in the SUNDIALS::IDA::solve_dae() function,
-where it has also been fixed.
-<br>
-(Wolfgang Bangerth, 2024/06/02)
+++ /dev/null
-Fixed: InitFinalize would initially Kokkos without taking into account the final
-number of threads that are used in deal.II.
-<br>
-(Daniel Arndt, 2024/06/04)
+++ /dev/null
-Fixed: The ParticleHandler could cause a division by zero
-for certain mappings when sorting particles that are
-located almost exactly on mesh vertices. This is fixed now.
-<br>
-(Rene Gassmoeller, 2024/06/18)
+++ /dev/null
-Fixed: The GridTools::Cache class accessed its members in ways that
-were not thread-safe. This should now be fixed.
-<br>
-(Wolfgang Bangerth, 2024/06/19)
+++ /dev/null
-Fixed: AffineConstraints::make_consistent_in_parallel() now iteratively
-updates the constraints on user-specified DoFs until the set of constraints
-globally converged on all subdomains.
-<br>
-The function now also updates the locally stored constraints of the
-underlying AffineConstraints object. After using this function, it might be
-necessary to use the IndexSet retrieved by
-AffineConstraints::get_local_lines() when initializing data structures,
-for example:
-<code>
-DynamicSparsityPattern dsp(constraints.get_local_lines());
-LinearAlgebra::distributed::Vector<double> solution(
- locally_owned_dofs, constraints.get_local_lines(), mpi_communicator);
-</code>
-This used to be an issue in parallel hp-adaptive applications, when
-finite elements of different types have constraints on faces between
-locally relevant and artificial cells.
-<br>
-(Wolfgang Bangerth, Marc Fehling, Martin Kronbichler, Peter Munch, 2024/06/20)
+++ /dev/null
-New: MatrixFree::loop() and MatrixFree::cell_loop() as well as
-FEEvaluation/FEFaceEvaluation can now also be used with ArrayView
-arguments. This allows to wrap externally managed vectors into the matrix-free
-facilities of deal.II.
-<br>
-(Martin Kronbichler, 2024/06/24)
+++ /dev/null
-Deprecated: The `distribute` callback of the
-PETScWrappers::TimeStepper class has been renamed to
-PETScWrappers::TimeStepper::update_constrained_components. The former
-name is still available for backward compatibility, but is now
-deprecated.
-<br>
-(Wolfgang Bangerth, 2024/06/30)
+++ /dev/null
-Deprecated: The `decide_for_coarsening_and_refinement` callback of the
-PETScWrappers::TimeStepper class has been renamed to
-PETScWrappers::TimeStepper::decide_and_prepare_for_remeshing. The former
-name is still available for backward compatibility, but is now
-deprecated.
-<br>
-(Wolfgang Bangerth, 2024/07/01)
+++ /dev/null
-New: Added a function FETools::compute_nodal_quadrature()
-which computes the nodal Quadrature rule for an interpolatory
-FiniteElement.
-<br>
-(David Wells, 2023/07/05)
+++ /dev/null
-New: All the basic Manifold objects describing a coordinate system now make
-their essential geometric properties (e.g., the center) available through member
-functions.
-<br>
-(David Wells, 2024/07/06)
+++ /dev/null
-Fixed: ReadWriteVector's copy constructor now correctly sets up its IndexSet
-when it has zero locally owned elements.
-<br>
-(David Wells, Laryssa Abdala, 2023/07/08)
+++ /dev/null
-Deprecated: The `interpolate` callback of the
-PETScWrappers::TimeStepper class has been renamed to
-PETScWrappers::TimeStepper::transfer_solution_vectors_to_new_mesh. The former
-name is still available for backward compatibility, but is now
-deprecated.
-<br>
-(Wolfgang Bangerth, 2024/07/09)
+++ /dev/null
-New: Class DiscreteTime supports now serialization.
-<br>
-(Pasquale Claudio Africa, 2024/07/11)
+++ /dev/null
-New: The functions GridGenerator::hyper_shell() and
-GridGenerator::hyper_cube_with_cylindrical_hole() now support
-dim=2 and spacedim=3.
-<br>
-(Peter Munch, 2024/07/16)
+++ /dev/null
-New: The functions VectorTools::compute_nonzero_normal_flux_constraints(),
-VectorTools::compute_nonzero_normal_flux_constraints_on_level(),
-VectorTools::compute_no_normal_flux_constraints(),
-VectorTools::compute_no_normal_flux_constraints_on_level(),
-VectorTools::compute_nonzero_tangential_flux_constraints(), and
-VectorTools::compute_normal_flux_constraints() now also can use
-the mapping to compute the normal vectors.
-<br>
-(Peter Munch, 2024/07/19)
+++ /dev/null
-New: There is a new initialization function MGTwoLevelTransfer::reinit() that
-takes two MatrixFree objects to describe a p-coarsening transfer operation,
-besides the previous option of computing the information via two separate
-DoFHandler objects. The new option is faster to set up and more memory
-efficient in case the MatrixFree objects already are available, such as when
-using those to define the level operators.
-<br>
-(Martin Kronbichler, 2024/07/22)
+++ /dev/null
-Fixed: The identification of periodic boundaries for
-parallel::distributed::Triangulation did not work properly for some meshes
-that had different face orientations on the two sides of a periodic
-boundary. This is now fixed.
-<br>
-(Martin Kronbichler, Paras Kumar, 2024/07/16)
+++ /dev/null
-Compatibility: deal.II's interface to CGAL has been updated to ensure
-compatibility with the upcoming CGAL 6.0 release.
-<br>
-(Sébastien Loriot, 2024/07/22)
-
projects / dealii.git / commitdiff