Hello,
I am attempting to implement a billback model and finding myself stymied by the way that sreport handles job arrays. Basically, when a user submits a large array, their usage includes time that jobs in the back of the array spend waiting their turn. (My #1 user in “sreport user topusage” shows more “used” cpu*minutes than the cluster physically _has_ during that interval.) However, jobs that are idle pending resources are simply regarded as pending; as a result, a “polite” user who submits an array of 1000 jobs running N at a time is penalized over a user who just dumps 1000 loose jobs into the queue. This incentives my users to do exactly what I do not want!
Has anyone tried to bill their users based on the results of sreport? If so, how did you work around this problem? What did you use to determine the # of CPU*Minutes that a user actually allocated on during a given interval?
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