
\subsection{\bf Overview of Parallelism in}
\subsection{\bf Conjugate Gradient}

\begin{slide}

\begin{itemize}
\item One must
\begin{enumerate}
\item Calculate matrix elements $A_{ij}$
\item Calculate various:
\end{enumerate}

\hspace{2em} $\bullet$ Matrix-vector $\sum_j A_{ij} x_j$ products

\hspace{2em} $\bullet$ and vector-vector $\sum_j x_j y_j$ scalar
products

\hspace{2em} $\bullet$ for several different vectors 

\hspace{2em} \phantom{$\bullet$} ({\bf A} is always stiffness matrix).

\end{itemize}

\end{slide}

