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4.1 Job Prioritization

In general, prioritization is the process of determining which of many options best fulfills overall goals. In the case of scheduling, a site will often have multiple, independent goals that may include maximizing system utilization, giving preference to users in specific projects, or making certain that no job sits in the queue for more than a given period of time. The approach used by Moab in representing a multi-faceted set of site goals is to assign weights to the various objectives so an overall value or priority can be associated with each potential scheduling decision. With the jobs prioritized, the scheduler can roughly fulfill site objectives by starting the jobs in priority order.

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