DYNAMICALLY COMPUTING AN ELECTRICAL DESIGN POINT (EDP) FOR A MULTICORE PROCESSOR

摘要

In one embodiment, a multicore processor includes a controller to dynamically limit a maximum permitted turbo mode frequency of its cores based on a core activity pattern of the cores and power consumption information of a unit power table. In one embodiment, the core activity pattern can indicate, for each core, an activity level and a logic unit state of the corresponding core. Further, the unit power table can be dynamically computed based on a temperature of the processor. Other embodiments are described and claimed.

主权项

1. A processor comprising:
a plurality of cores each to independently execute instructions, each of the plurality of cores to operate at an independent voltage and frequency; and a power controller coupled to the plurality of cores and including first logic to group the plurality of cores into a first group of cores corresponding to inactive cores, a second group of cores corresponding to cores operating at or below a guaranteed maximum operating frequency, and a third group of cores corresponding to cores requesting a turbo mode frequency, determine an available power budget for the third group of cores based on power consumption for the first and second group of cores, and perform an iterative search for a maximum permitted turbo mode frequency for the third group of cores.