1. A method for performing power management operations in a distributed computer system, the method comprising: analyzing resource demands of clients running in the distributed computer system to produce predicted resource demands of the clients for a specified time in the future; changing a power management option of a power management analysis algorithm from a first option setting to a second option setting at a first time prior to the specified time; and executing the power management analysis algorithm with the second option setting in anticipation of the predicted resource demands at the specified time.