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IBM Parallel Environment (PE) Developer Edition by Xiao Tian Xu, Wainer dos Santos Moschetta, Kleber Sacilotto de Souza, Peter Mayes, Jose Higino, Feng Dong, Akmal Chaudhri, Dino Quintero

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Application profiling and tuning
In this chapter, we use some of the HPC applications to illustrate how to employ the PEDE and HPCT tools for profiling and tuning.
Usually people try to locate the hotspots of an application and then optimize it. There are some points that are usually considered for an HPC application profiling and tuning, such as the synchronization, load balance, communication overhead and the memory, file I/O issues, along with the real computation effort. Consequently to work on an existing HPC application for optimization, ...

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