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Extending smart containers for data locality-aware skeleton programming
Linköpings universitet, Institutionen för datavetenskap, Programvara och system. Linköpings universitet, Tekniska fakulteten.
Linköpings universitet, Institutionen för datavetenskap, Programvara och system. Linköpings universitet, Tekniska fakulteten.ORCID-id: 0000-0001-5241-0026
2019 (engelsk)Inngår i: Concurrency and Computation, ISSN 1532-0626, E-ISSN 1532-0634, Vol. 31, nr 5, artikkel-id e5003Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We present an extension for the SkePU skeleton programming framework to improve the performance of sequences of transformations on smart containers. By using lazy evaluation, SkePU records skeleton invocations and dependencies as directed by smart container operands. When a partial result is required by a different part of the program, the run-time system will process the entire lineage of skeleton invocations; tiling is applied to keep chunks of container data in the working set for the whole sequence of transformations. The approach is inspired by big data frameworks operating on large clusters where good data locality is crucial. We also consider benefits other than data locality with the increased run-time information given by the lineage structures, such as backend selection for heterogeneous systems. Experimental evaluation of example applications shows potential for performance improvements due to better cache utilization, as long as the overhead of lineage construction and management is kept low.

sted, utgiver, år, opplag, sider
WILEY , 2019. Vol. 31, nr 5, artikkel-id e5003
Emneord [en]
lazy evaluation; loop tiling; skeleton programming; SkePU; smart containers
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-154530DOI: 10.1002/cpe.5003ISI: 000457796200005OAI: oai:DiVA.org:liu-154530DiVA, id: diva2:1290544
Konferanse
10th International Symposium on High-Level Parallel Programming and Applications (HLPP)
Merknad

Funding Agencies|Swedish e-Science Research Centre; Swedish National Graduate School in Computer Science

Tilgjengelig fra: 2019-02-20 Laget: 2019-02-20 Sist oppdatert: 2019-02-20

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