Title
Optimal speed scaling under arbitrary power functions
Abstract
This paper investigates the performance of online dynamic speed scaling algorithms for the objective of minimizing a linear combination of energy and response time. We prove that (SRPT, P--1 (n)), which uses Shortest Remaining Processing Time (SRPT) scheduling and processes at speed such that the power used is equal to the queue length, is 2-competitive for a very wide class of power-speed tradeoff functions. Further, we prove that there exist tradeoff functions such that no online algorithm can attain a competitive ratio less than 2.
Year
DOI
Venue
2009
10.1145/1639562.1639576
SIGMETRICS Performance Evaluation Review
Keywords
Field
DocType
linear combination,response time,tradeoff function,competitive ratio,processing time,online algorithm,power-speed tradeoff function,optimal speed scaling,wide class,online dynamic speed,arbitrary power function,queue length,power function
Power function,Online algorithm,Linear combination,Mathematical optimization,Scheduling (computing),Computer science,Bipartite graph,Queue,Response time,Real-time computing,Distributed computing,Competitive analysis
Journal
Volume
Issue
Citations 
37
2
26
PageRank 
References 
Authors
1.41
16
3
Name
Order
Citations
PageRank
L. L.H. Andrew191852.52
Adam Wierman21635106.57
Ao Tang325418.74