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Optimal partitioning of random workloads in homogeneous multiprocessor and distributed systems

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1 Author(s)
Haddad, E.K. ; Dept. of Comput. Sci., Virginia Polytech. Inst. & State Univ., Falls Church, VA, USA

The problem of distributing M interacting program modules of a given homogeneous random workload over P identical processors for optimizing execution time is examined. The execution time modeling allows full concurrency of activities among different processors but cascades for each processor its computation time, internal communications, external communications, and synchronization/contention delays. The results obtained express the optimality conditions in terms of the various statistical and deterministic parameters of the problem: number of modules; number of processors; mean value of module run time; probabilities and mean values of intraprocessor, interprocessor, and synchronization/contention communications overheads. Optimal load distributions are found to be either even or single-processor assignments, albeit for different conditions than stipulated in previous results

Published in:

Parallel and Distributed Processing, 1990. Proceedings of the Second IEEE Symposium on

Date of Conference:

9-13 Dec 1990