Methodology to predict scalability of parallel applications
Document typeConference report
PublisherBarcelona Supercomputing Center
Rights accessOpen Access
In the road to exascale computing, the inference of expected performance of parallel applications results in a complex task. Performance analysts need to identify the behavior of the applications and to extrapolate it to nonexistent machines. In this work, we present a methodology based on collecting the essential knowledge about fundamental factors of parallel codes, and to analyze in detail the behavior of the application at low core counts on current platforms. The result is a guide to generate the model that best predicts performance at very large scale. Obtained results from executions at low core counts showed expected parallel eficiències with a low relative error.
CitationRosas, Claudia; Giménez Lucas, Judit; Labarta Mancho, Jesús José. Methodology to predict scalability of parallel applications. A: "BSC Doctoral Symposium (2nd: 2015: Barcelona)". 2nd ed. Barcelona: Barcelona Supercomputing Center, 2015, p. 50-52.