Processor skin temperature power management based on multiple external sensors

A method comprising:

• receiving, at a first processing unit disposed in a computer chassis, a plurality of temperature readings from a plurality of sensors external to the first processing unit;
• estimating a skin temperature of the first processing unit by adjusting each of the plurality of temperature readings based on a first plurality of correlation values to generate an adjusted first temperature reading of the skin temperature of the first processing unit, the first plurality of correlation values based on a predicted temperature behavior of the computer chassis;
• and
• applying a filter value to the adjusted first temperature reading to generate a filtered skin temperature to filter out noise;
• and
• reducing power supplied to the first processing unit proportionally to an amount by which the filtered skin temperature exceeds a threshold.

A processing unit, comprising:

• a plurality of processor cores;
• a temperature control processor to:
• receive a first temperature reading from a first temperature sensor external to the processing unit;
• adjust the first temperature reading based on a first correlation value to generate a first adjusted temperature reading of a skin temperature of the processing unit, the first correlation value based on a predicted temperature behavior of a computer chassis;
• apply a filter value to the adjusted first temperature reading to generate a filtered skin temperature to filter out noise;
• and
• initiate reduction of power supplied to the processing unit proportional to an amount by which the filtered skin temperature exceeds a threshold.