Patent ID: 7958508

Claim:
A method of power-aware job management performed in a computer system which includes a plurality of host computers for managing a job to be executed by at least one of the host computers and a power supply of at least one of the host computers, the method comprising: receiving the job; storing the received job; scheduling an execution plan for the stored job; determining, based on the execution plan of the job, a timing at which to execute power control of at least one of the host computers based on a subtraction of an activation time, which is required for activating one of the host computers from a suspended state to an activated state, from a scheduled completion time of a job being executed immediately before the scheduled job; determining, before the timing at which to execute power control is reached, at least one of the host computers to be activated for executing the scheduled job in addition to each of the host computers that are used for the job being executed immediately before the scheduled job; determining, from the host computers that are used for the job being executed immediately before the scheduled job, a host computer to be shifted to the suspended state prior to the timing at which to execute power control being reached; controlling the power supply of the at least one of the host computers to be activated and the host computer to be shifted to the suspended state upon the timing at which to execute power control being reached; and executing the scheduled job.