Paper by Erik D. Demaine
- Lars Arge, Michael A. Bender, Erik D. Demaine, Bryan E. Holland-Minkley, and J. Ian Munro, “An Optimal Cache-Oblivious Priority Queue and its Application to Graph Algorithms”, SIAM Journal on Computing, volume 36, number 6, March 2007, pages 1672–1695.
We develop an optimal cache-oblivious priority queue data structure,
supporting insertion, deletion, and delete-min operations in
O((1/B) logM/B (N/B))
amortized memory transfers, where M and B are the memory and
block transfer sizes of any two consecutive levels of a multilevel memory
hierarchy. In a cache-oblivious data structure, M and B are not
used in the description of the structure. Our structure is as efficient as
several previously developed external-memory (cache-aware) priority queue data
structures, which all rely crucially on knowledge about M and B.
Priority queues are a critical component in many of the best known
external memory graph algorithms, and using our cache-oblivious priority queue
we develop several cache-oblivious graph algorithms.
- The paper is 26 pages.
- The paper is available in PostScript (471k) and gzipped PostScript (193k).
- See information on file formats.
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- Related papers:
- BufferTrees_STOC2002 (Cache-Oblivious Priority Queue and Graph Algorithm Applications)
See also other papers by Erik Demaine.
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