Scheduling Strategies for Master-Slave Tasking on Heterogeneous Processor Grids

  • Authors:
  • C. Banino;Olivier Beaumont;Arnaud Legrand;Yves Robert

  • Affiliations:
  • -;-;-;-

  • Venue:
  • PARA '02 Proceedings of the 6th International Conference on Applied Parallel Computing Advanced Scientific Computing
  • Year:
  • 2002

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Abstract

In this paper, we consider the problem of allocating a large number of independent, equal-sized tasks to a heterogeneous "grid" computing platform. We use a non-oriented graph to model a grid, where resources can have different speeds of computation and communication, as well as different overlap capabilities. We show how to determine the optimal steady-state scheduling strategy for each processor.Because spanning trees are easier to deal with in practice, a natural question arises: how to extract the best spanning tree, i.e. the one with optimal steady-state throughput, out of a general interconnection graph? We show that this problem is NP-Complete. Still, we introduce and compare several low-complexity heuristics to determine a sub-optimal spanning tree.