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Divisible task scheduling – concept and verification: Special issue on task scheduling problems for parallel and distributed systems. (English) Zbl 0914.68011
Summary: In this work the idea of a divisible task is presented. The divisible task is a computation which can be divided with arbitrary granularity into independent parts solved in parallel by distributed computers. A simple model of a communication delay and a computation time is adopted, based on which various computer architectures and communication methods are analyzed. We review the ways of applying the divisible task concept in the case of a linear array, star, bus, hypercube, and mesh of processors. Then, the results of an empirical justification of the analysis are presented.
MSC:
68M20Performance evaluation of computer systems; queueing; scheduling