Merge sharelatex-2017-05-09-1809 into master

main.tex

@@ -153,7 +153,15 @@ On a per-node basis the four GPUs in S822LC provide $17.9\times$ speedup over th
 
 \subsection{MPI Communication Overlap}
 
-
+\begin{figure}[htbp]
+\begin{center}
+\begin{tabular}{c}
+\mbox{\psfig{figure=figures/mpi_comm.png,width=8cm}}
+\end{tabular}
+\end{center}
+  \caption{Representation of MPI communication overlap during a particular MLFMM.}
+  \label{fig:kernel_breakdown}
+\end{figure}
 
 \subsection{Computation Kernel Breakdown}