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dc.contributor.authorHutchinson, David A.
dc.contributor.authorSanders, Peter
dc.contributor.authorVitter, Jeffrey Scott
dc.date.accessioned2015-11-20T17:32:31Z
dc.date.available2015-11-20T17:32:31Z
dc.date.issued2006-07-27
dc.identifier.citationHutchinson, David A., Peter Sanders, and Jeffrey Scott Vitter. "Duality Between Prefetching and Queued Writing with Parallel Disks." SIAM J. Comput. SIAM Journal on Computing 34.6 (2005): 1443-463. DOI:10.1137/S0097539703431573en_US
dc.identifier.urihttp://hdl.handle.net/1808/18955
dc.descriptionThis is the published version, made available with the permission of the publisher. Copyright © 2005 Society for Industrial and Applied Mathematics.en_US
dc.description.abstractParallel disks promise to be a cost effective means for achieving high bandwidth in applications involving massive data sets, but algorithms for parallel disks can be difficult to devise. To combat this problem, we define a useful and natural duality between writing to parallel disks and the seemingly more difficult problem of prefetching. We first explore this duality for applications involving read-once accesses using parallel disks. We get a simple linear time algorithm for computing optimal prefetch schedules and analyze the efficiency of the resulting schedules for randomly placed data and for arbitrary interleaved accesses to striped sequences. Duality also provides an optimal schedule for prefetching plus caching, where blocks can be accessed multiple times. Another application of this duality gives us the first parallel disk sorting algorithms that are provably optimal up to lower-order terms. One of these algorithms is a simple and practical variant of multiway mergesort, addressing a question that had been open for some time.en_US
dc.publisherSociety for Industrial and Applied Mathematicsen_US
dc.subjectCachingen_US
dc.subjectExternal memory sortingen_US
dc.subjectLoad balancingen_US
dc.subjectLower bounden_US
dc.subjectPrefetchingen_US
dc.subjectRandomized algorithmen_US
dc.titleDuality Between Prefetching and Queued Writing with Parallel Disksen_US
dc.typeArticle
kusw.kuauthorVitter, Jeffrey Scott
kusw.kudepartmentElectrical Engr & Comp Scienceen_US
dc.identifier.doi10.1137/S0097539703431573
kusw.oaversionScholarly/refereed, publisher version
kusw.oapolicyThis item does not meet KU Open Access policy criteria.
dc.rights.accessrightsopenAccess


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