Abstract

In this paper, a load balancing extension for the PVM software system is described. This extension includes slave processes, for obtaining host CPU load information, and a master process for gathering the load information. A programming interface is included to provide the PVM user with CPU load information and a load balancing process spawn. For tested applications, the load balancing extension exhibits considerable improvement in parallel runtime performance. Results presented include parallel runtime comparisons for basic matrix oriented algorithms, a parallel fractal image compression algorithm, and selected NAS parallel benchmarks.

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