Space-efficient scheduling of stochastically generated tasks

  • Authors:
  • Tomáš Brázdil;Javier Esparza;Stefan Kiefer;Michael Luttenberger

  • Affiliations:
  • Faculty of Informatics, Masaryk University, Brno, Czech Republic;Institut für Informatik, Technische Universität München, Germany;Department of Computer Science, University of Oxford, UK;Institut für Informatik, Technische Universität München, Germany

  • Venue:
  • Information and Computation
  • Year:
  • 2012

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Abstract

We study the problem of scheduling tasks for execution by a processor when the tasks can stochastically generate new tasks. Tasks can be of different types, and each type has a fixed, known probability of generating other tasks. We present results on the random variable S^@s modeling the maximal space needed by the processor to store the currently active tasks when acting under the scheduler @s. We obtain tail bounds for the distribution of S^@s for both offline and online schedulers, and investigate the expected value E[S^@s].