An extention of edge zeroing heuristic for scheduling precedence constrained task graphs on parallel systems using cluster dependent priority scheme

Abstract

Sarkar's edge zeroing heuristic for scheduling precedence constrained task graphs on parallel systems can be viewed as a priority based algorithm in which the priority is assigned to edges. In this algorithm, the priority is taken as the edge weight. This can also be viewed as a module dependent priority function that is defined for pairs of modules. We have extended this idea in which the priority is a cluster dependent function of pairs of clusters (of modules). Using this idea we propose an algorithm of complexity O(|V||E|(|V|+|E|)) and compare it with some well known algorithms.