where curved descriptions are only applied to the boundary rather than
the whole volume.
-\item C++11 is now both required and used.
-
-\item \dealii{} has made extensive use of both the Clang-Tidy \cite{clang-tidy}
- and Coverity Scan \cite{coverity} static analysis tools for detecting bugs
- and other issues in the code. In total around, 260 issues were detected and
- fixed using the latter tool.
- %% > Is there somewhere we can cite for either of these tools? It would
- %% > be nice to recognize the department of homeland security for offering
- %% The contract with homeland security was completed in 2009.
-
-\item
- \texttt{LinearOperator}, a flexible template class that implements the action of a
- linear operator (see \cite{MaierBardelloniHeltai-2016-b}), now supports
- computations with Trilinos, Schur complements, and linear constraints. This
- class is, as of this release, the official replacement for about half a dozen
- similar (but less general) classes, such as \texttt{FilteredMatrix},
- \texttt{IterativeInverse}, and \texttt{PointerMatrix}.
-
-\item
- Significant extension of matrix-free capabilities, including support for face
- integrals in discontinuous Galerkin schemes, a new Hermite-like polynomial
- basis adapted to face integrals that involve derivatives of shape functions,
- and several performance enhancements.
-
-\item
- Support for GPU
- \marginpar{paragraph for CUDA missing}
-
-\item
- In this version we add template wrappers for ScaLAPACK -- parallel dense
- linear algebra library with block-cyclic matrix distribution over 2D
- process grid. The functionality and interface is similar to the LAPACK
- wrappers, matrix-matrix multiplication, Cholesky and LU factorizations,
- eigensolvers, SVD, pseudoinverse, save/load in HDF5 format and other
- functionality is implemented. A user can combine the new linear algebra
- with other MPI-parallel algorithms in \dealii{} without the need to worry
- about MPI communicator being divisible exactly into 2D process grid. The
- processes which are not part of the grid are labeled inactive and
- ScaLAPACK routines will not be called on them.
- %
- Additionally, we improved support of LAPACK. We added methods to perform
- rank-1 update/downdate, calculate Cholesky factorization, trace and
- determinant, as well as estimate the reciprocal condition number. We also
- now support configuration with 64-bit BLAS.
-
-\item
- A dedicated sundials module has been created to provide support for the
- SUNDIALS library. SUNDIALS is a SUite of Nonlinear and
- DIfferential/ALgebraic equations Solvers. ARKode, IDA, and KINSOL are
- supported. ARKode is a solver library that provides adaptive-step time
- integration. IDA is a package for the solution of differential-algebraic
- equations systems in the form $F(t,y,y')=0$. KINSOL is solver for nonlinear
- algebraic systems.
-
-\item
- A dedicated optimization/rol module has been created to provide support for
- the Rapid Optimization Library (ROL). ROL is a package for large-scale
- optimization.
-
\item
A dedicated particles module has been created to provide support for the
storage of particles and their properties. This module provides a base class
unified interface. In practice, this support means that Adol-c and Sacado
data types can be used in the \texttt{FEValues} and \texttt{FEValuesViews}
to represent degree-of-freedom values.
+
+\item Interfaces to more external libraries and programs.
+
+\item C++11 is now both required and used.
\item
- Support for complex-valued vectors is now at the same level as real-valued
- vectors.
+ Support for GPU computations.
+
+\item \dealii{} has made extensive use of both the Clang-Tidy \cite{clang-tidy}
+ and Coverity Scan \cite{coverity} static analysis tools for detecting bugs
+ and other issues in the code. For example, around 260 issues were detected and
+ fixed using the latter tool.
+ %% > Is there somewhere we can cite for either of these tools? It would
+ %% > be nice to recognize the department of homeland security for offering
+ %% The contract with homeland security was completed in 2009.
\item
- Support for the nanoflann library. nanoflann is a library for building
- KD-trees of datasets and for the fast querying of closest neighbors in
- KD-trees. nanoflann is used to speed up the search of the p nearest neighbors
- of a given point, or searching the points that fall within a radius of a
- target point.
+ \texttt{LinearOperator}, a flexible template class that implements the action of a
+ linear operator (see \cite{MaierBardelloniHeltai-2016-b}), now supports
+ computations with Trilinos, Schur complements, and linear constraints. This
+ class is, as of this release, the official replacement for about half a dozen
+ similar (but less general) classes, such as \texttt{FilteredMatrix},
+ \texttt{IterativeInverse}, and \texttt{PointerMatrix}.
\item
- Support for the Open Asset Import Library (Assimp). Assimp can be used to read
- about 40 different 3D graphics formats. A subset of these formats can be used
- to generate two-dimensional meshes possibly embedded in a three-dimensional
- space.
+ Significant extension of matrix-free capabilities, including support for face
+ integrals in discontinuous Galerkin schemes, a new Hermite-like polynomial
+ basis adapted to face integrals that involve derivatives of shape functions,
+ and several performance enhancements.
-\item
- Initial support for Gmsh.
- \emph{[--- Do we actually provide any functionality with the GMSH
- executable yet? ---]}
- \marginpar{TODO}
+\item New non-standard quadrature rules:
+A number of non-standard, special-purpose quadrature rules have been
+implemented. Among these are ones for
+(i) truncating standard formulas to simplical domains (\texttt{Qsimplex});
+(ii) singular transformations of the unit cell to the unit simplex
+ (\texttt{QDuffy});
+(iii) composition of simplical quadrature rules to a combined rule on the
+ unit cell (\texttt{QSplit});
+and (iv) transformation of the unit square to polar coordinates
+ (\texttt{QTrianglePolar}).
+These quadrature rules greatly help when integrating singular
+functions or on singular domains. They
+are mainly used in Boundary Element Methods.
+
\item
- Initial support for generalized support points: Internal interpolation
- rewritten (support for $H(\text{curl})$ and $H(\text{div})$ conforming
- elements).
+ Support for complex-valued vectors at the same level as real-valued
+ vectors.
\item New python tutorial program tutorial-1; as well as
updates to step-37. In addition, the separate code
the release announcement.)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\subsection{Feature 1}
+\subsection{Manifolds}
+
+...
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\subsection{Support for particle-in-cell methods}
+
+...
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\subsection{Dedicated support for automatic and symbolic differentiation}
+
+...
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\subsection{New interfaces to external libraries and programs}
+
+\dealii{} has always tried to leverage high-quality implementations of
+algorithms available through other open source software, rather than
+re-implementing their functionality. (A list of interfaces to other
+packages is given in Section~\ref{sec:cite}.) As part of the current
+release, we have written several new interfaces as discussed in the following.
+
+\marginpar{Add references to all of these libraries.}
+
+\paragraph*{ScaLAPACK, a parallel dense linear algebra library.}
+ ScaLAPACK provides block-cyclic matrix distribution over 2D process
+ grid. The functionality and interface of our wrappers is similar to
+ the LAPACK wrappers for serial dense linear algebra, namely
+ matrix-matrix multiplication, Cholesky and LU factorizations,
+ eigensolvers, SVD, pseudoinverses, and save/load operations using
+ the HDF5 format. All of this functionality is available even in
+ cases where the number of MPI processes does not exactly divide the
+ number of tiles stored in the block-cyclic data distribution.
+
+ As part of this effort, we have also improved LAPACK support: there
+ are now methods to perform rank-1 updates/downdates, Cholesky
+ factorizations, to compute the trace and determinant, as well as
+ estimate the reciprocal condition number. We also now support
+ configuration with 64-bit BLAS.
+
+\paragraph*{SUNDIALS, a SUite of Nonlinear and DIfferential/ALgebraic
+ Equation Solvers.}
+ Solving nonlinear algebraic and differential equations is both a
+ common task and one that often requires sophisticated globalization
+ algorithms for efficiency and reliability. SUNDIALS provides these
+ in a widely used format, both sequentially and in parallel.
+
+ \dealii{} now has interfaces to SUNDIALS's ARKode, IDA, and KINSOL sub-packages.
+ ARKode is a solver library that provides adaptive-step time
+ integration. IDA is a package for the solution of differential-algebraic
+ equations systems in the form $F(t,y,y')=0$. KINSOL is solver for nonlinear
+ algebraic systems.
+\paragraph*{ROL, a Rapid Optimization Library.}
+ROL is a package for large-scale optimization.
+\marginpar{Can we add a sentence or two about the ROL interface here?}
+
+\paragraph*{nanoflann, a library for building and querying
+ $k$-d trees of datasets.} Operations such as finding the vertex
+or cell closest
+to a given evaluation point occur frequently in many applications that
+use unstructured meshes. While the naive algorithm is linear in the
+number of vertices or cells, many such operations can be made
+significantly faster by building a $k$-d tree data structure that
+recursively subdivides a $k$ dimensional space. The nanoflann library
+provides such a data structure and allows querying it, either for
+closest points (e.g., when finding the closest vertex) or for
+searching the points that fall within a radius of a target point. This
+functionality is now available via \dealii{} interfaces.
+
+\paragraph*{Assimp, the Open Asset Import Library.}
+ Assimp can be used to read about 40 different 3D graphics formats. A
+ subset of these formats can be now be read from within \dealii{} to
+ generate two-dimensional meshes, possibly embedded in a
+ three-dimensional space.
+
+\paragraph*{Gmsh.}
+ \marginpar{Do we actually provide any functionality with the GMSH
+ executable yet? If so, complete this part}
+
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Use of C++11}
\dealii{} first offered support for a subset of C++11 features in
thereby clarifying object ownership responsibilities and avoiding memory leaks.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\subsection{Support for GPU computations}
+
+\marginpar{Bruno?}
+...
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{New and updated tutorial programs}
\item Goal-oriented elastoplasticity.
\end{itemize}
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\subsection{New non-standard quadrature rules}
-
-A number of non-standard, special-purpose quadrature rules have been
-implemented. Among those are quadrature formulas that support
-\begin{itemize}
- \item
- truncating standard formulas to simplical domains (\texttt{Qsimplex}),
- \item
- singular transformations of the unit cell to the unit simplex
- (\texttt{QDuffy}),
- \item
- composition of simplical quadrature rules to a combined rule on the
- unit cell (\texttt{QSplit}),
- \item
- transformation of the unit square to polar coordinates
- (\texttt{QTrianglePolar}).
-\end{itemize}
-These new quadrature rule greatly help to integrate singular domains. They
-are mainly used in Boundary Element Methods.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Incompatible changes}
projects / release-papers.git / commitdiff