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Unformatted text preview: A Scheduling Problem • We wish to schedule a set of jobs on a single server. • Each job requires one unit of execution time and has its own deadline. • We schedule each job in turn at the latest available time prior to its deadline. • If there is no time available prior to a job’s deadline, we don’t schedule it. • Problem: How do we quickly find the latest available time prior to a job’s deadline? 1 Partial Solution • We number the time slots 1 ..n , so that slot i is the last slot prior to time i . • We partition the time slots into disjoint sets such that each set contains a time interval in which only the first time slot is available. • In order to ensure that the first interval has an available time slot, we include time slot , which is always considered to be available. 2 Needed Operations • In order to be able to find the latest available time slot no later than slot i , we must be able to determine which set contains i , and what the available time slot in that set is. – With each set we associate a unique representative , which is some element in the set....
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This note was uploaded on 09/06/2009 for the course CIS 11274 taught by Professor Howell during the Spring '09 term at Kansas State University.
- Spring '09