\section{Performance and energy reduction trade-off}
\label{sec.compet}
-This section presents our method for choosing the optimal scaling factor that gives the best tradeoff between energy reduction and performance. This method takes into account the execution times for both computation and communication to compute the scaling factor. Since, the energy consumption and the performance are not measured using the same metric, a normalized value of both measurements can be used to compare them. The normalized energy is the ratio between
-the consumed energy with scaled frequency and the consumed energy without scaled
+This section presents our method for choosing the optimal scaling factor that
+gives the best tradeoff between energy reduction and performance. This method
+takes into account the execution times for both computation and communication to
+compute the scaling factor. Since the energy consumption and the performance
+are not measured using the same metric, a normalized value of both measurements
+can be used to compare them. The normalized energy is the ratio between the
+consumed energy with scaled frequency and the consumed energy without scaled
frequency:
\begin{multline}
\label{eq:enorm}
