1. A design structure embodied in a machine readable medium used in a design process of a power management prediction system for use with a power source that produces power events, the design structure of said system comprising: a monitor connectable to the power source for monitoring the power source and producing a power history table of power events previously produced by the power source; computation circuitry; a power requirements table containing power requirements information for said computational circuitry; and a controller connected to said computation circuitry, said power history table and said power requirements table, said controller calculating a predicted power cycle based on said power events in said power history table and enabling power to said computation circuitry based on said predicted power cycle and said power requirements information.