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Título
The All-Pair Shortest-Path Problem in Shared-Memory Heterogeneous Systems
Autor
Año del Documento
2014
Editorial
Wiley
Descripción
Producción Científica
Documento Fuente
The All-Pair Shortest-Path Problem in Shared-Memory Heterogeneous Systems. Hector Ortega-Arranz, Yuri Torres, Diego R. Llanos, Arturo González-Escribano. High-Performance Computing on Complex Environments (Book Chapter, ComplexHPC 2013) Series on Parallel and Distributed Computing, Wiley, ISBN 978-1-118-71205-4, pages 283-299
Resumen
This chapter faces the All-Pair Shortest-Path problem for sparse graphs combining parallel algorithms and parallel-productivity methods in heterogeneous systems. As this problem can be divided into independent Single-Source ShortestPath subproblems, we distribute this computation space into different processing units, CPUs and graphical processing units (GPUs), that are usually present in modern shared-memory systems. Although the powerful GPUs are significantly faster than the CPUs, its combined use leads to better execution times. Furthermore, two different policies have been used for the scheduling issue, an equitable scheduling, where the workspace is equitably divided between all computational units independently of its nature, and a work-stealing scheduling, where a computational unit steals a new task when it has finished its previous work.
Materias (normalizadas)
Informática
Materias Unesco
1203 Ciencia de Los Ordenadores
3304 Tecnología de Los Ordenadores
ISBN
978-1-118-71205-4
Patrocinador
This research was partly supported by the Spanish Government (TIN2007-62302, TIN2011-25639, CENIT OCEANLIDER, CAPAP-H networks TIN2010-12011-E, and TIN2011-15734-E), Junta de Castilla y León, Spain (VA094A08, VA 172A12-2), the HPC-EUROPA2 project (project number: 228398) with the support of the European Commission—Capacities Area—Research Infrastructures Initiative, and the ComplexHPC COST Action
Version del Editor
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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