Apparatus and method for managing power on a shared thermal platform for a multi-processor system

An apparatus comprising:

• a plurality of integrated circuit processors having a shared thermal platform, each processor having at least one subsystem operable at a plurality of different power settings, at least one internal thermal parameter detector operative to provide power data related to the processor, and a power management unit;
• the power management units of the plurality of processors being operable to share power data from the at least one internal thermal parameter detector between the power management units of the plurality of processors;
• compare the shared power data from the plurality of processors to a thermal design power limit for the shared thermal platform;
• and control a power setting of the at least one subsystem of the plurality of processors within the shared thermal platform based on the comparison of the shared power data to the thermal design power limit for the shared thermal platform.

A computer readable storage medium comprising executable instructions that when executed by at least one processor causes the at least one processor to:

• receive power data from at least one internal thermal parameter detector;
• receive power data from a power management unit of another processor having a shared thermal platform with the at least on processor;
• compare the received power data to a thermal design power limit for the shared thermal platform;
• and
• control power settings for the at least one subsystem of the shared thermal platform based on the comparison of the received power data to the thermal design power limit for the shared thermal platform.