On the adequacy of lightweight thread approaches for high-level parallel programming models

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/114905

dc.contributor	Barcelona Supercomputing Center
dc.contributor.author	Castelló, Adrián
dc.contributor.author	Mayo, Rafael
dc.contributor.author	Sala, Kevin
dc.contributor.author	Beltran Querol, Vicenç
dc.contributor.author	Balaji, Pavan
dc.contributor.author	Peña, Antonio J.
dc.date	2018-07
dc.identifier.citation	Castelló, A. [et al.]. On the adequacy of lightweight thread approaches for high-level parallel programming models. "Future Generation Computer Systems", Juliol 2018, vol. 84, p. 22-31.
dc.identifier.citation	0167-739X
dc.identifier.citation	10.1016/j.future.2018.02.016
dc.identifier.uri	http://hdl.handle.net/2117/114905
dc.description.abstract	High-level parallel programming models (PMs) are becoming crucial in order to extract the computational power of current on-node multi-threaded parallelism. The most popular PMs, such as OpenMP or OmpSs, are directive-based: the complexity of the hardware is hidden by the underlying runtime system, improving coding productivity. The implementations of OpenMP usually rely on POSIX threads (pthreads), offering excellent performance for coarse-grained parallelism and a perfect match with the current hardware. OmpSs is a task oriented PM based on an ad hoc runtime solution called Nanos++; it is the precursor of the tasking parallelism in the OpenMP tasking specification. A recent trend in runtimes and applications points to leveraging massive on-node parallelism in conjunction with fine-grained and dynamic scheduling paradigms. In this paper we analyze the behavior of the OpenMP and OmpSs PMs on top of the recently emerged Generic Lightweight Threads (GLT) API. GLT exposes a common API for lightweight thread (LWT) libraries that offers the possibility of running the same application over different native LWT solutions. We describe the design details of those high-level PMs implemented on top of GLT and analyze different scenarios in order to assess where the use of LWTs may benefit application performance. Our work reveals those scenarios where LWTs overperform pthread-based solutions and compares the performance between an ad hoc solution and a generic implementation.
dc.description.abstract	The researchers from the Universitat Jaume I de Castelló were supported by project TIN2014-53495-R of the MINECO, Spain and FEDER, Spain, the Generalitat Valenciana fellowship programme, Spain Vali+d 2015. Antonio J. Peña is cofinanced by the Spanish Ministry of Economy and Competitiveness, Spain under Juan de la Cierva fellowship number IJCI-2015-23266. 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 DE-AC02-06CH11357. We gratefully acknowledge Enrique S. Quintana-Ortí (Universitat Jaume I) and Sangmin Seo (Samsung Corp.) for their advice in this work and the computing resources provided and operated by the Joint Laboratory for System Evaluation (JLSE) at Argonne National Laboratory.
dc.description.abstract	Peer Reviewed
dc.language.iso	eng
dc.publisher	Elsevier
dc.relation	https://www.sciencedirect.com/science/article/pii/S0167739X17328819
dc.relation	info:eu-repo/grantAgreement/ES/PE2013-2016/TIN2014-53495-R
dc.relation	info:eu-repo/grantAgreement/ES/PE2013-2016/IJCI-2015-23266
dc.rights	Attribution-NonCommercial 4.0 Spain
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Informàtica
dc.subject	OpenMP
dc.subject	Dynamic programming
dc.subject	Lightweight threads
dc.subject	OpenMP
dc.subject	OmpSs
dc.subject	GLT
dc.subject	POSIX threads
dc.subject	Programming models
dc.subject	OpenMP
dc.subject	Programació dinàmica
dc.title	On the adequacy of lightweight thread approaches for high-level parallel programming models
dc.type	info:eu-repo/semantics/submittedVersion
dc.type	info:eu-repo/semantics/article

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