\newcommand{\figureVII}[3][0.242\textwidth]{
	\begin{subfigure}{#1}
	\vspace{0.5cm}
	\begin{minipage}[c]{\textwidth}%
		\includegraphics[width=1\textwidth]{figures/figure_7/#3}
	\end{minipage}
	\caption{#2}
	\end{subfigure}}

\begin{figure}
\figureVII{Cluster A}{output_3_0.png}
\figureVII{Cluster B}{output_3_3.png}
\figureVII{Cluster C}{output_3_6.png}
\figureVII{Cluster D}{output_3_9.png}
\figureVII{Cluster E}{output_3_12.png}
\figureVII{Cluster F}{output_3_15.png}
\figureVII{Cluster G}{output_3_18.png}
\figureVII{Cluster H}{output_3_21.png}
\caption{Task event rates vs. task priority and final task termination}\label{fig:figureVII-a}
\end{figure}

\begin{figure}
\figureVII{Cluster A}{output_3_1.png}
\figureVII{Cluster B}{output_3_4.png}
\figureVII{Cluster C}{output_3_7.png}
\figureVII{Cluster D}{output_3_10.png}
\figureVII{Cluster E}{output_3_13.png}
\figureVII{Cluster F}{output_3_16.png}
\figureVII{Cluster G}{output_3_19.png}
\figureVII{Cluster H}{output_3_22.png}
\caption{Task event rates vs. event execution time and final task termination}\label{fig:figureVII-b}
\end{figure}

\begin{figure}
\figureVII{Cluster A}{output_3_2.png}
\figureVII{Cluster B}{output_3_5.png}
\figureVII{Cluster C}{output_3_8.png}
\figureVII{Cluster D}{output_3_11.png}
\figureVII{Cluster E}{output_3_14.png}
\figureVII{Cluster F}{output_3_17.png}
\figureVII[.2\textwidth]{Cluster G}{output_3_20.png}
\hfill
\figureVII[.2\textwidth]{Cluster H}{output_3_23.png}
\hspace{.5cm}
\caption{Task event rates vs. machine concurrency and final task termination}\label{fig:figureVII-c}
\end{figure}