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This chapter presents Aurora as a case study to optimize the execution of parallel applications. Aurora is an OpenMP framework that is completely transparent to both the designer and end user. Without any code transformation or recompilation, it is capable of automatically finding, at runtime and with minimum overhead, the optimal number of threads for each parallel loop region and readapts in cases the behavior of a region changes during execution. Therefore, Sect. 5.1 discusses the importance of providing an approach that, at the same time, is transparent to the user and provides adaptability regarding the execution environment. Then, Aurora is presented in Sect. 5.2 and evaluated through an extensive set of comparisons with some well-known state-of-the-art solutions in Sect. 5.3 |
