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CHANGELOG.md 7.21 KiB

Master (will become release v2.11)

Added

  • Add BasisMapping to map multi-indices between flat and blocked IMS.
  • Add block preconditioner for the MTL backend
  • Add vector space operations .axpy, .aypx, +=, -=, *=, and scalar assignment to the VectorFacade class.

Fixed

  • Environment cannot be copied any more, since this could call PETSc::Finalize too early.

Release 2.10

Added

  • Added wrapper LocalViewPair that contains a rwo and column LocalView. In case the row/column bases are equal, also the local-views are identical and bound only once.
  • An OperatorAdapter is added that transforms a child-node operator into a root-node operator.
  • Introduce a dedicated BoundaryOperator as a combination of an operator and a BoundarySubset.
  • Expression cross(a,b) representing the cross-product of two vector expressions a and b.
  • Add ComposerVectorGridFunction, a grid function that is a composition of a vector of other grid functions.

Fixed

  • The implicit {...} construction in FlatPreBasis is replaced by an explicit type construction.
  • The Notifiers stores now all Observers in a std::list instead of a std::set. This solved a bug in parallel computations when multiple observers of the same type are registered by pointer but the address was not ordered the same way on all processors.
  • Remove all occurrences of CollectiveCommunication since it is removed in dune grid

Changed

  • The TYPEOF macro now uses GCCs __typeof__ intrinsic if available.
  • The methods create() inside of ISTLPreconCreator and ISTLSolverCreator are renamed into createPrecon and createSolver.
  • The insall_all_dune_modules.sh script now adds more debug flags to the created debug.opts file.
  • The external dependency fmtlib is updated to version 9 and is now provided using cmakes FetchContent utility.
  • Do not use the deprecated sizeInfo from dune-functions, but pass a basis directly.
  • OperatorList is now called Assembler and is simplified. No nested MatrixTreeContainer anymore, but all operators are now attached to the root-node.

Removed

  • The artificial range range_t is removed in favor of Dune::StaticIntegralRange.
  • Dependency to Dune::Std::apply is removed. Use std::apply directly.
  • TreeContainer is removed in favor of the Dune::TypeTreeTreeContainer implementation.

Release 2.9

Added

  • Added new implementations of function interpolation: SimplexInterpolation, AverageInterpolation, and LocalAverageInterpolation. To decide how to interpolate, an InterpolatorFactory is provided that accepts the interpolation tag like tag::assign or tag::average.
  • Add a free function interpolate<tag>(basis,coeff,f) that calls the interpolators based on the given tag. The default tag is tag::assign.
  • A new adaptive container and GridFunction is added: ElementVector and ElementGridFunction that represent element-wise constant values.
  • Add helper class OptionalNoCopy that represents a std::optional that does not copy the stored object on copy/move operations.
  • Add gradientOf, divergenceOf and partialDerivativeOf as friend function to DOFVector.
  • Provide a function entitySet(basis) and basis.entitySet() that defines the set of entities the basis can be bound to. This set is typically related to the linear-algebra backend traits' PartitionSet.
  • Make the function ProblemInstat::oldSolutionVector() also available with mutable access.
  • A data transfer strategy based on a simple caching and interpolation is added, called SimpleDataTransfer. It can be selected with the datatranser tag tag::simple_datatransfer. Note, this datatransfer is restricted to grids with a single GeometryType.
  • Add scalar grid operations tanh(value) and signum(value)
  • Add MatrixBackend::zeroRows() and MatrixBackend::zeroRowsColumns() to eliminate rows (and columns) in the matrix and optionally set a diagonal element or adapt the passed vectors.

Fixed

  • Corrected a bug that emerged in the copy of LocalView, by removing the self-defined copy and move operations and instead relying on the rule-of-zero.
  • Fix issue #14 (closed) with a wrong dimension used in the checkInside function in DataTransfer.
  • Fix implementation of local operator SecondOrderDivTestvecDivTrialvec.
  • Use comm() from GridView for domain decomposition, instead of a global communicator.

Changed

  • Mark makeTreePath and treePathIndex as constexpr.
  • Print timings in ProblemStat only for log-level >= 2
  • The quadrature order of local-functions in the GridFunctionOperator is now determined by taking into account the user-specified polynomial order first and second the derived polynomial of the expression. This allows to manually increase the quadrature order of an operator term.
  • Remove a specialization of Underlying_t and only remove top-levelconst qualifiers instead of all const qualifiers.
  • Change the constructor of DiscreteFunction to allow references and smart pointers to be passed for the coefficient vector and global basis.
  • Make valueOf a friend function of DOFVector.
  • Traversal in interpolators and assemblers is replaced by the new introduced entitySet() function.
  • Make the DataTransfer a customization point by providing a class DataTransferFactory that can be specialized with a <tag> and must implement a create(basis,coefficients) static function.
  • Replace Communication by IndexDistribution in the backends and incorporate the DOFMapping directly into PETSc's index distribution. The GlobalBasis provides the method indexDistribution() instead of comm().
  • Specialize the IndexDistribution over the GridView::CollectiveCommunication to decide whether to use sequential or parallel index distributions.
  • Pass the IndexDistribution directly to the MatrixBackend and VectorBackend.
  • DirichletBC can now be set to different row and column indices (offdiagonal blocks).

Removed

  • Specialization of GlobalIdSet for Dune::Functions::TaylorHoodPreBasis is removed since this pre-basis is just for illustration.
  • The helper class MacroGridFactory is removed, since a proper specialization for the StructuredGridFactory<AlbertaGrid> is now available in dune-grid.
  • Utility functionFromCallable is removed. It was used for backward compatibility with older interpolate functions. dune-localfunctions now supports callables.
  • Backward-compatibility utilities in Nodes.hpp are removed now.
  • Remove order() function from Power operation.
  • Constructor of DiscreteFunction that takes a DOFVector is removed.
  • Function Constraints::dirichletBC() and dirichletBC() function is removed in favor of MatrixBackend::zeroRows() and MatrixBackend::zeroRowsColumns().

Release 2.8

  • Restructuring of local operators. Introduce (global) Operator class and use type-erasure for the storage of LocalOperators in the operator list. In the GridFunctionLocalOperator the local-function is passed to the assemble() method directly.
  • Move recursive algorithms to subdirectoy amdis/algorithm/
  • Rename Recursive::Apply into Recursive::Map

Release v0.3

See release notes on https://gitlab.com/amdis/amdis/-/releases/v0.3