Title:
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A Review of Lightweight Thread Approaches for High Performance Computing
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Author:
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Castelló, Adrián; Peña, Antonio J.; Seo, Sangmin; Mayo, Rafael; Balaji, Pavan; Quintana-Ortí, Enrique S.
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Other authors:
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Barcelona Supercomputing Center |
Abstract:
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High-level, directive-based solutions are becoming the programming models (PMs) of the multi/many-core architectures. Several solutions relying on operating system (OS) threads perfectly work with a moderate number of cores. However, exascale systems will spawn hundreds of thousands of threads in order to exploit their massive parallel architectures and thus conventional OS threads are too heavy for that purpose. Several lightweight thread (LWT) libraries have recently appeared offering lighter mechanisms to tackle massive concurrency. In order to examine the suitability of LWTs in high-level runtimes, we develop a set of microbenchmarks consisting of commonly-found patterns in current parallel codes. Moreover, we study the semantics offered by some LWT libraries in order to expose the similarities between different LWT application programming interfaces. This study reveals that a reduced set of LWT functions can be sufficient to cover the common parallel code patterns andthat those LWT libraries perform better than OS threads-based solutions in cases where task and nested parallelism are becoming more popular with new architectures. |
Abstract:
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The researchers from the Universitat Jaume I de Castelló were supported by project TIN2014-53495-R of the MINECO, the Generalitat Valenciana fellowship programme Vali+d 2015, and FEDER. This work was partially supported by the U.S. Dept. of Energy, Office of Science, Office of Advanced
Scientific Computing Research (SC-21), under contract DEAC02-06CH11357. We gratefully acknowledge the computing resources provided and operated by the Joint Laboratory for System Evaluation (JLSE) at Argonne National Laboratory. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica -Parallel processing (Electronic computers) -OpenMP -High performance computing -OpenMP -Lightweight Threads -Programming Models -OpenMP -Interfícies de programació d'aplicacions (Programari) |
Rights:
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Document type:
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Article - Submitted version Conference Object |
Published by:
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IEEE
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