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Heuristic methods for dynamic load balancing in a message-passing supercomputer

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2 Author(s)
Xu, J. ; IBM Corp., San Jose, CA, USA ; Kai Hwang

The scheme is based on using easy-to-implement heuristics and a variable threshold in migrating processes among the multicomputer nodes. It uses a distributed control over all processor nodes as coordinated by a host processor. Four heuristic methods for process migration are presented, which are distinguished by choosing different policies for process migration and threshold update. A parallel simulator (PSIM) with distributed load balancers is developed on an iPSC/2 hypercube system. The load balancing scheme is evaluated to determine the effects of various system utilizations, load imbalances, communication and migration overheads, and multicomputer sizes. The relative merits of the four methods are revealed under various multicomputer conditions

Published in:

Supercomputing '90., Proceedings of

Date of Conference:

12-16 Nov 1990