From: Daniel Arndt Date: Thu, 19 Sep 2024 13:47:23 +0000 (-0400) Subject: Remove trailing whitespaces X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=48873185e40af5674112a244053a502ca1fab7e9;p=release-papers.git Remove trailing whitespaces --- diff --git a/9.6/paper.tex b/9.6/paper.tex index eb6230d..52bc9b9 100644 --- a/9.6/paper.tex +++ b/9.6/paper.tex @@ -151,8 +151,8 @@ cross/.default={2pt}} \affil[9]{University of Pisa, Italy.} \author[10]{Sebastian~Kinnewig} -\affil[10]{Institute for Applied Mathematics, Scientific Computing, - Leibniz University Hannover, +\affil[10]{Institute for Applied Mathematics, Scientific Computing, + Leibniz University Hannover, Welfengarten 1, 30167 Hannover, Germany {\texttt{kinnewig@ifam.uni-hannover.de}}} @@ -359,7 +359,7 @@ can be found %\todo[inline]{Martin/Peter: The list in the introduction also mentions the two-level % operators. Is this the right place to also discuss these?} - + We made different updates to the matrix-free infrastructure in \dealii. These include: \begin{itemize} \item Our own implementation of \texttt{std::simd}, called @@ -370,14 +370,14 @@ We made different updates to the matrix-free infrastructure in \dealii. These in With these instructions, 2 doubles or 4 floats can be processed in one go. Since the matrix-free infrastructure works directly with the \texttt{VectorizedArray} abstraction as data structure, it automatically benefits from this new implementation. - + \item The application of the Piola transformation for values and gradients of $H$(div)-conforming Raviart--Thomas elements on non-Cartesian elements has been rewritten for better performance. Together with additional changes in the sum-factorization algorithms that are now more similar to the kernels described in~\cite{KronbichlerKormann2019}, the matrix-free operator evaluation is now three to five times faster in these cases. - + \item Furthermore, improved the internal data structures of the tensor-product evaluators as well as the evaluators for simplex elements. This speeds up the operator-evaluation in several scenarios, especially for simplices @@ -399,7 +399,7 @@ of $p$-multigrid, allowing to reduce the setup costs and memory consumption sign %\todo[inline]{All: If you contributed to this functionality, please % help flesh out this section.} - + For the non-matching infrastructure in \dealii, the following improvements were made: \begin{itemize} @@ -411,7 +411,7 @@ multiple-component elements has been added. sets of unstructured points, \texttt{FEPointEvaluation}, have been made. This is particularly useful for evaluating several quantities on the same set of points, which is enabled by \texttt{NonMatching::MappingInfo}. -\item The new class \texttt{FERemoteEvaluation} has been added. +\item The new class \texttt{FERemoteEvaluation} has been added. This is a class to access data in a distributed matrix-free loop for non-matching discretizations. Interfaces are named in analogy to \texttt{FEEvaluation}, in order to seamlessly switch @@ -430,13 +430,13 @@ in the context of an application to acoustic conservation equations~\cite{heinz2 \dealii{}'s parallel linear algebra facilities (apart from matrix-free capabilities) are largely built on wrappers around functionality provided by the \petsc{} and \trilinos{} libraries. -Historically, \trilinos{} has implemented distributed linear algebra +Historically, \trilinos{} has implemented distributed linear algebra -classes for vectors and (sparse) matrices in its \epetra{} package that uses \MPI{} as its only source of parallelism. The \dealii{} interfaces to \trilinos{} have therefore traditionally all been built using \epetra{}. However, several years ago, \trilinos also introduced the -newer \tpetra{} (``templated'' Petra) package that provides additional shared memory +newer \tpetra{} (``templated'' Petra) package that provides additional shared memory parallelism and GPU capabilities by building on \kokkos{}. \tpetra{} is slated to eventually replace \epetra{}, and the latter is indeed now deprecated with removal slated for 2025. As a consequence, we will @@ -530,7 +530,7 @@ as part of this release. In addition, there are a number of new tutorial programs: \begin{itemize} \item - \texttt{step-83} + \texttt{step-83} demonstrates how one can implement checkpoint/restart functionality in \dealii{}-based programs, using the BOOST serialization functionality as a