Online Parallel Machine Scheduling With Hard Deadlines
نویسندگان
چکیده
This paper considers the problem of online job scheduling on M identical machines with hard deadlines. The processing time and delay time of a job are known only on its arrival. Jobs are discarded if they do not meet delay time requirement. The objective of the present work is to minimize the number of tardy jobs. A lower bound of competitive ratio when the processing time and delay time are bounded integers is studied and algorithms based on Random Assignment, Greedy and Probability are proposed in this paper. Their performances are analyzed using simulation. Index Terms online scheduling, delay time, lower bound, deadline, job.
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