Paper by Erik D. Demaine

Reference:

Lars Arge, Michael A. Bender, Erik D. Demaine, Bryan Holland-Minkley, and J. Ian Munro, “Cache-Oblivious Priority Queue and Graph Algorithm Applications”, in Proceedings of the 34th ACM Symposium on Theory of Computing (STOC 2002), Montréal, Québec, Canada, May 19–21, 2002, pages 268–276.

Abstract:

In this paper we develop an optimal cache-oblivious priority queue data structure, supporting insertion, deletion, and deletemin operations in O((1/B) log_M/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. The bounds match the bounds of 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.

Length:

The paper is 9 pages.

Availability:

The paper is available in PostScript (245k), gzipped PostScript (93k), and PDF (186k).

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