From 7d84ec355502b0cf7df91d7780fd025ec5d93cf1 Mon Sep 17 00:00:00 2001 From: David Wells Date: Tue, 21 Jun 2022 18:11:15 -0400 Subject: [PATCH] More edits --- 9.4/paper.tex | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/9.4/paper.tex b/9.4/paper.tex index 1047262..df3c448 100644 --- a/9.4/paper.tex +++ b/9.4/paper.tex @@ -223,7 +223,8 @@ which we briefly outline in the remainder of this section: unstructured mesh on a structured one (which might facilitate a more memory-efficient storage format, for example if this second triangulation is a uniformly refined rectangle or box), or one can create a slice in 3D. - \item The new member function \texttt{find\_point\_owner\_rank()} of \texttt{parallel::distributed::Triangulation} allows one to find the MPI + \item The new member function \texttt{find\_point\_owner\_rank()} of + \texttt{parallel\allowbreak ::distributed::\allowbreak Triangulation} allows one to find the MPI ranks of cells containing specified points. It is communication-free and leverages the functionality of p4est (>v.2.2). Its algorithm is described in \cite{burstedde2020parallel}. This information @@ -239,10 +240,16 @@ which we briefly outline in the remainder of this section: shape functions by their support point. This functionality is useful in both developing nodal schemes since, e.g., the $x$, $y$, and $z$ velocities at a point will be consecutive in the solution vector. It also improves interoperability with external libraries which expect data in this format. - \item \todo[inline]{Add something about the FEInterfaceValues improvements?} + \item A new module \texttt{Utilities::MPI::LargeCount} which enables sending and receiving MPI messages containing more than $2^31$ objects. + This library either uses the new MPI-4 functions, such as \texttt{MPI\_Send\_c()}, or an internal implementation of large objects for + compatibility with MPI-3. + \item The \texttt{FEInterfaceValues} class, which computes common quantities at the interface of two cells, has been overhauled to make it + more consistent with the rest of the library and use more intuitive names for functions. For example, + \texttt{FEInterfaceValues::jump\_gradient()} is now \texttt{FEInterfaceValues::jump\_in\_shape\_gradients()}. Several new + functions, such as \texttt{FEInterfaceValues::get\_jump\_in\_function\_values()}, have also been added. \end{itemize} % -The changelog lists more than 175 other features and bugfixes. +The changelog lists more than 100 other features and bugfixes. @@ -532,7 +539,7 @@ notable ones being: \item Improved support for computations with Hessians of shape functions: just like values and gradients, Hessians can be now evaluated and integrated during matrix-free loops both for cells and faces. This could enable, for example, writing -a matrix-free version of step-47, which solves the biharmonic equation with DG. +a matrix-free version of step-47, which solves the biharmonic equation with the discontinuous Galerkin method. \item Cell-centric loops now also allow access to gradients and Hessians of neighboring cells on faces. The major difficulty here was the relative orientation of cells on unstructured meshes. -- 2.39.5