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Abstract:
In this paper we present a paradigm for solving external-memory
problems, and illustrate it by algorithms for matrix multiplication,
sorting, list ranking, transitive closure and FFT. Our paradigm is
based on the use of BSP algorithms. The correspondence is almost
perfect, and especially the notion of x-optimality carries over
to algorithms designed according to our paradigm.
The advantages of the approach are similar to the advantages of
BSP algorithms for parallel computing: scalability, portability,
predictability. The performance measure here is the total work, not
only the number of I/O operations as in previous approaches. The
predicted performances are therefore more useful for practical
applications.
