Online parallel machines scheduling with two hierarchies
Online parallel machines scheduling with two hierarchies
复制标题
具有两个层次结构的在线并行机调度
DOI:
10.1016/j.tcs.2009.04.007
复制
发表时间:
2009-09
影响因子:
1.1
通讯作者:
Tan, Zhiyi
中科院分区:
文献类型:
--
作者:
Jiang, Yiwei;Zhang, An;Tan, Zhiyi
This paper investigates an online hierarchical scheduling problem on m parallel identical machines. Each job, as well as each machine, has a hierarchy associated with it. A job can be scheduled on a machine only when its hierarchy is no higher than that of the machine. The objective is to minimize the makespan. In addition, we assume that there are only two hierarchies, and k machines have a higher hierarchy which can schedule all jobs. We present an online algorithm with a competitive ratio of 1+m2−mm2−km+k2<73 for any k and m. The performance for some pairs of k and m is further improved by another algorithm. Lower bounds for various pairs of k and m are also presented.
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DOI:
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发表时间:
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期刊:
SIAM J. Comput.
影响因子:
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影响因子:
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DOI:
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发表时间:
2004-10
期刊:
Comput. Oper. Res.
影响因子:
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DOI:
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发表时间:
2004-03
期刊:
Discret. Appl. Math.
影响因子:
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