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Barcelona OpenMP tasks suite: a set of benchmarks targeting the exploitation of task parallelism in OpenMP
Duran González, Alejandro; Teruel, Xavier; Ferrer, Roger; Martorell Bofill, Xavier; Ayguadé Parra, Eduard
Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. CAP - Grup de Computació d'Altes Prestacions
Traditional parallel applications have exploited regular parallelism, based on parallel loops. Only a few applications exploit sections parallelism. With the release of the new OpenMP specification (3.0), this programming model supports tasking. Parallel tasks allow the exploitation of irregular parallelism, but there is a lack of benchmarks exploiting tasks in OpenMP. With the current (and projected) multicore architectures that offer many more alternatives to execute parallel applications than traditional SMP machines, this kind of parallelism is increasingly important. And so, the need to have some set of benchmarks to evaluate it. In this paper, we motivate the need of having such a benchmarks suite, for irregular and/or recursive task parallelism. We present our proposal, the Barcelona OpenMP Tasks Suite (BOTS), with a set of applications exploiting regular and irregular parallelism, based on tasks. We present an overall evaluation of the BOTS benchmarks in an Altix system and we discuss some of the different experiments that can be done with the different compilation and runtime alternatives of the benchmarks.
Peer Reviewed
Àrees temàtiques de la UPC::Informàtica::Arquitectura de computadors
Barcelona OpenMP Tasks Suite
Parallel processing (Electronic computers)
Application program interfaces
OpenMP specifications
Processament en paral·lel (Ordinadors) -- Arquitectura

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