IBM High-Performance Computing Insights with IBM Power System AC922 Clustered Solution

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Measuring and tuning applications

This chapter describes how to measure and tune applications.

The following topics are described in this chapter:

•Effects of basic performance tuning techniques

•General methodology of performance benchmarking

•Sample code for the construction of thread affinity strings

•IBM Engineering and Scientific Subroutine Library performance results

•GPU tuning

•Application development and tuning tools

9.1 Effects of basic performance tuning techniques

This section evaluates the effects of basic performance tuning techniques. ...

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