some corrections

[mpi-energy2.git] / Heter_paper.tex

diff --git a/Heter_paper.tex b/Heter_paper.tex
index babdfc2373f30e70758c5d0a7a777cbcd4283a7d..530730cf6887c5b1454b932113e811436e233772 100644 (file)
--- a/Heter_paper.tex
+++ b/Heter_paper.tex
@@ -632,7 +632,7 @@ which results in bigger energy savings.
     \EndWhile
     \State  Return $Sopt_1,Sopt_2,\dots,Sopt_N$
   \end{algorithmic}
-  \caption{Heterogeneous scaling algorithm}
+  \caption{frequency scaling factors selection algorithm}
   \label{HSA}
 \end{algorithm}
 
@@ -663,7 +663,8 @@ EQ(\ref{eq:perf}) and the energy model computed by EQ(\ref{eq:energy}).
 The energy model is also significantly dependent  on the execution time model because the static energy is 
 linearly related the execution time and the dynamic energy is related to the computation time. So, all of 
 the work presented in this paper is based on the execution time model. To verify this model, the predicted 
-execution time was compared to  the real execution time over Simgrid for all  the NAS parallel benchmarks 
+execution time was compared to  the real execution time over SimGrid/SMPI simulator, v3.10~\cite{casanova+giersch+legrand+al.2014.versatile}, 
+for all  the NAS parallel benchmarks NPB v3.3 
 \cite{NAS.Parallel.Benchmarks}, running class B on 8 or 9 nodes. The comparison showed that the proposed execution time model is very precise, 
 the maximum normalized difference between the predicted execution time  and the real execution time is equal 
 to 0.03 for all the NAS benchmarks.
@@ -683,11 +684,11 @@ vector of frequency scaling factors that gives the results of the next sections.
 \label{sec.expe}
 To evaluate the efficiency and the overall energy consumption reduction of algorithm~(\ref{HSA}), 
 it was applied to the NAS parallel benchmarks NPB v3.3. The experiments were executed 
-on the simulator SimGrid/SMPI v3.10~\cite{casanova+giersch+legrand+al.2014.versatile} which offers 
-easy tools to create a heterogeneous platform and run message passing applications over it. The 
-heterogeneous platform that was used in the experiments, had one core per node because just one 
-process was executed per node. The heterogeneous platform  was composed of four types of nodes. 
-Each type of nodes had different characteristics such as the maximum CPU frequency, the number of
+on the simulator SimGrid/SMPI which offers easy tools to create a heterogeneous platform and run 
+message passing applications over it. The  heterogeneous platform that was used in the experiments, 
+had one core per node because just one  process was executed per node. 
+The heterogeneous platform  was composed of four types of nodes. Each type of nodes had different 
+characteristics such as the maximum CPU frequency, the number of
 available frequencies and the computational power, see table (\ref{table:platform}). The characteristics 
 of these different types of  nodes are inspired   from the specifications of real Intel processors. 
 The heterogeneous platform had up to 144 nodes and had nodes from the four types in equal proportions,