The Bell Is Ringing in Speed-Scaled Multiprocessor Scheduling
The Bell Is Ringing in Speed-Scaled Multiprocessor Scheduling
复制标题
速度扩展的多处理器调度的钟声已经敲响
DOI:
10.1007/s00224-013-9477-9
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发表时间:
2014
影响因子:
0.5
通讯作者:
A. Souza
中科院分区:
文献类型:
--
作者:
G. Greiner;T. Nonner;A. Souza
This paper investigates the problem of scheduling jobs on multiple speed-scaled processors without migration, i.e., we have constant α > 1 such that running a processor at speedsresults in energy consumptions#945;per time unit. We consider the general case where each job has a monotonously increasing cost function that penalizes delay. This includes the so far considered cases of deadlines and flow time. For any type of delay cost functions, we obtain the following results: Any β-approximation algorithm for a single processor yields a randomized βBα-approximation algorithm for multiple processors, whereBαis the αth Bell number, that is, the number of partitions of a set of size α. Analogously, we show that any β-competitive online algorithm for a single processor yields a βBα-competitive online algorithm for multiple processors. Finally, we show that any β-approximation algorithm for multiple processors with migration yields a deterministic βBα-approximation algorithm for multiple processors without migration. These facts improve several approximation ratios and lead to new results. For instance, we obtain the first constant factor online and offline approximation algorithm for multiple processors without migration for arbitrary release times, deadlines, and job sizes. All algorithms are based on the surprising fact that we can remove migration with a blowup ofBαin expectation.
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影响因子:
1.1
作者:
H. Chan;J. Edmonds;T. Lam;Lap;A. Marchetti;K. Pruhs
通讯作者:
K. Pruhs
影响因子:
1.1
作者:
T. Lam;Lap;I. K. To;Prudence W. H. Wong
通讯作者:
Prudence W. H. Wong
DOI:
10.1145/1639562.1639576
发表时间:
2009
期刊:
ACM SIGMETRICS Performance Evaluation Review
影响因子:
--
作者:
L. Andrew;A. Wierman;A. Tang
通讯作者:
A. Tang
DOI:
10.1145/1367064.1367078
发表时间:
2004
期刊:
--
影响因子:
--
作者:
K. Pruhs;Patchrawat Uthaisombut;G. Woeginger
通讯作者:
G. Woeginger
影响因子:
4.6
作者:
T. Lam;Lap;I. K. To;Prudence W. H. Wong
通讯作者:
Prudence W. H. Wong