Complexity of preemptive minsum scheduling on unrelated parallel machines
نویسندگان
چکیده
منابع مشابه
Complexity of preemptive minsum scheduling on unrelated parallel machines
We show that the problems of minimizing total completion time and of minimizing the number of late jobs on unrelated parallel machines, when preemption is allowed, are both NP-hard in the strong sense. The former result settles a long-standing open question. A special case of the unrelated machine model is the identical machine model with the restriction that a job can only be processed on a sp...
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ژورنال
عنوان ژورنال: Journal of Algorithms
سال: 2005
ISSN: 0196-6774
DOI: 10.1016/j.jalgor.2004.06.011