20100521-NOTUR.tex

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\input{JedMacros.tex}

\title[PETSc]{The Portable Extensible Toolkit for Scientific computing}

\subtitle{New developments, memory performance, and algorithmic experimentation}

\author{Jed Brown}


% - Use the \inst command only if there are several affiliations.
% - Keep it simple, no one is interested in your street address.
\institute[ETH Z\"urich]
{
  Laboratory of Hydrology, Hydraulics, and Glaciology \\
  ETH Zürich
}

\date{NOTUR 2010-05-21, Bergen}

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\subject{Talks}


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\frametitle{Outline}
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\section{Introduction}
\input{slides/PETSc/About.tex}
\input{slides/PETSc/Timeline.tex}

\section[Memory]{Memory performance for sparse kernels}
\input{slides/JFNKBottlenecks.tex}
\input{slides/CPUArchitecture.tex}
\input{slides/HardwareCapability.tex}
%\input{OlikerSpMVOptimization.tex}
\subsection{Sparse Matrix-Vector products}
\input{slides/SpMVPerformanceModel.tex}
\input{slides/StreamTriad-XT5-BGP.tex}
\input{slides/OptimizingSpMV.tex}
\input{slides/OptimizingSpMVUnassembled.tex}
\subsection{Triangular solves}
\input{slides/StoringFactors.tex}
\input{slides/FactorImprovement.tex}

\section{Time Integration}
\subsection{Differential Algebraic Equations}
\input{slides/StiffIntegrators.tex}
\input{slides/StiffBarriers.tex}
\input{slides/DAEIRKS.tex}
\subsection{Strong stability preserving methods}
\input{slides/SSPIntegrators.tex}

\section{Preconditioning using splitting methods}
\input{slides/FieldSplit.tex}
\input{slides/SplittingStrongCoupling.tex}

\section{Hydrostatic Ice}
\input{slides/THI/Equations.tex}
\input{slides/THI/X5kmClip.tex}
\input{slides/THI/WhatAboutSplitting.tex}

\input{slides/ThoughtsOnMultigrid.tex}

\begin{frame}{Wrap-up}
  \begin{itemize}
  \item PETSc can help you
    \begin{itemize}
    \item easily construct a code to experiment with ideas
    \item scale an existing code base
    \item incorporate more scalable or higher performance algorithms
    \item attain high performance on a variety of architectures
    \item debug and profile a parallel application (not discussed today)
    \item package and distribute your code (e.g. graph algorithms, \\
      domain decomposition and multilevel solvers), \code{-{}-download-xxx}
    \end{itemize}
  \item I will be around most of today, find me to discuss
    \begin{itemize}
    \item new and old features in PETSc
    \item performance, scalability, and algorithms
    \item design of new codes
    \item integration with your existing application
    \end{itemize}
  \item \url{http://mcs.anl.gov/petsc}
  \item \url{petsc-users@mcs.anl.gov} and \url{petsc-dev@mcs.anl.gov}
  \item \url{petsc-maint@mcs.anl.gov}
  \end{itemize}
\end{frame}

\end{document}