License: Creative Commons Attribution 3.0 Unported license (CC BY 3.0)
When quoting this document, please refer to the following
DOI: 10.4230/LIPIcs.STACS.2014.53
URN: urn:nbn:de:0030-drops-44469
URL: http://dagstuhl.sunsite.rwth-aachen.de/volltexte/2014/4446/
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Angel, Eric ; Bampis, Evripidis ; Chau, Vincent

Throughput Maximization in the Speed-Scaling Setting

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Abstract

We are given a set of n jobs and a single processor that can vary its speed dynamically. Each job J_j is characterized by its processing requirement (work) p_j, its release date r_j and its deadline d_j.
We are also given a budget of energy E and we study the scheduling problem of maximizing the throughput (i.e. the number of jobs that are completed on time). While the preemptive energy minimization problem has been solved in polynomial time [Yao et al., FOCS'95], the complexity of the problem of maximizing the throughput remained open until now. We answer partially this question by providing a dynamic programming algorithm that solves the problem in pseudo-polynomial time. While our result shows that the problem is not strongly NP-hard, the question of whether the problem can be solved in polynomial time remains a challenging open question. Our algorithm can also be adapted for solving the weighted version of the problem where every job is associated with a weight w_j and the objective is the maximization of the sum of the weights of the jobs that are completed on time.

BibTeX - Entry

@InProceedings{angel_et_al:LIPIcs:2014:4446,
  author =	{Eric Angel and Evripidis Bampis and Vincent Chau},
  title =	{{Throughput Maximization in the Speed-Scaling Setting}},
  booktitle =	{31st International Symposium on Theoretical Aspects of Computer Science (STACS 2014)},
  pages =	{53--62},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-65-1},
  ISSN =	{1868-8969},
  year =	{2014},
  volume =	{25},
  editor =	{Ernst W. Mayr and Natacha Portier},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{http://drops.dagstuhl.de/opus/volltexte/2014/4446},
  URN =		{urn:nbn:de:0030-drops-44469},
  doi =		{10.4230/LIPIcs.STACS.2014.53},
  annote =	{Keywords: energy efficiency, dynamic speed scaling, offline algorithm, throughput, dynamic programming}
}

Keywords: energy efficiency, dynamic speed scaling, offline algorithm, throughput, dynamic programming
Collection: 31st International Symposium on Theoretical Aspects of Computer Science (STACS 2014)
Issue Date: 2014
Date of publication: 05.03.2014

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