works~\cite{Our_first_paper} and \cite{pdsec2015}, we proposed a methods that select the optimal
frequency scaling factors for a homogeneous and a heterogeneous clusters respectively.
Both of the two methods executing a message passing
iterative synchronous application while giving the best trade-off between the
energy consumption and the performance for such applications. In this work we
works~\cite{Our_first_paper} and \cite{pdsec2015}, we proposed a methods that select the optimal
frequency scaling factors for a homogeneous and a heterogeneous clusters respectively.
Both of the two methods executing a message passing
iterative synchronous application while giving the best trade-off between the
energy consumption and the performance for such applications. In this work we