\label{res-comp}
The EDP algorithm, described in Section \ref{ch4:7:5}, was applied synchronously and asynchronously to both the synchronous and asynchronous MS application of size $N=400^3$. The experiments were conducted over 4 distributed clusters, described in Table \ref{table:grid5000}, and 8 homogeneous nodes were used from each cluster.
Table \ref{table:comapre} presents the results of energy saving, performance degradation and distance percentages when applying the EDP method on four different MS versions.
-Figure \ref{fig:compare} compares the distance percentages, computed as the difference between energy saving and performance degradation percentages, of the EDP and HSA
+Figure \ref{fig:compare-edp} compares the distance percentages, computed as the difference between energy saving and performance degradation percentages, of the EDP and HSA
algorithms. This comparison shows that the proposed HSA algorithm gives better energy reduction and performance trade-off than the EDP method. EDP gives better results when evaluated over Grid'5000 than over the simulator because the nodes used from Grid'5000 are more heterogeneous than those simulated with SimGrid.
\begin{table}[!h]
\centering
\includegraphics[scale=0.65]{fig/ch4/compare.eps}
\caption{Comparing the trade-off percentages of HSA and EDP methods over the Grid'5000}
- \label{fig:compare}
+ \label{fig:compare-edp}
\end{figure}
