Patent ID: 8612984

Claim:
A computer program product for energy-aware job scheduling, the computer program product comprising: a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising: computer readable program code configured to, access data that specifies energy usage and job performance metrics that correspond to a job and a plurality of processor core operating frequencies, wherein the job has been requested of a cluster; select a first of the plurality of processor core operating frequencies that satisfies an energy usage criterion for performing the job based, at least in part, on the data that specifies energy usage and job performance metrics that correspond to the job, wherein the plurality of processor core operating frequencies comprises a default processor core operating frequency, and wherein the first of the plurality of processor core operating frequencies is lower than the default processor core operating frequency; determine coefficients of an energy model based on the performance metrics and energy usage; estimate energy usage and performance metrics for the job at the first of the plurality of processor core operating frequencies based on the coefficients and the energy model; and store the estimated energy usage and performance metrics for the job at the first of the plurality of processor core operating frequencies; associate the stored estimated energy usage and performance metrics with the job and with the first of the plurality of processor core operating frequencies; and assign the job to be performed by a node in the cluster at the selected first of the plurality of processor core operating frequencies.