A posterior competitiveness for list scheduling algorithm on machines with eligibility constraints

被引:12
|
作者
Hwang, HC
Chang, SY
Hong, YS
机构
[1] Chosun Univ, Dept Ind Engn, Gwangju 501709, South Korea
[2] Pohang Univ Sci & Technol, Dept Ind Engn, Div Elect & Comp Engn, Pohang 790784, South Korea
关键词
on-line parallel machine scheduling; machine eligibility; competitive ratio;
D O I
10.1142/S0217595904000084
中图分类号
C93 [管理学]; O22 [运筹学];
学科分类号
070105 ; 12 ; 1201 ; 1202 ; 120202 ;
摘要
We consider the on-line problem of scheduling n independent jobs on m identical machines under the machine eligibility constraints, where each job has its own specified subset of machines which are eligible for processing it. We investigate a greedy algorithm LS and prove its posterior competitiveness ratio is log(2) 4/lambdam - 1/lambda, where lambda is the number of machines eligible for processing the job with the latest completion time.
引用
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页码:117 / 125
页数:9
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