文章基本信息

标题：Throughput Maximization in the Speed-Scaling Setting
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作者：Eric Angel ; Evripidis Bampis ; Vincent Chau 等
期刊名称：LIPIcs : Leibniz International Proceedings in Informatics
电子版ISSN：1868-8969
出版年度：2014
卷号：25
页码：53-62
DOI：10.4230/LIPIcs.STACS.2014.53
出版社：Schloss Dagstuhl -- Leibniz-Zentrum fuer Informatik
摘要：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.
关键词：energy efficiency; dynamic speed scaling; offline algorithm; throughput; dynamic programming