Intel Corporation

Avinash N Ananthakrishan

Efraim Rotem

Doron Rajwan

Stephen H Gunther

Jeremy J Shrall

Michael N Derr

Shaun M Conrad

Tomer Ziv

Xiuting C Man

Jay D Schwartz

In an embodiment, a processor includes a first domain with at least one core to execute instructions and a second domain coupled to the first domain and including at least one non-core circuit. These domains can operate at independent frequencies, and a power control unit coupled to the domains may include a thermal logic to cause a reduction in a frequency of the first domain responsive to occurrence of a thermal event in the second domain. Other embodiments are described and claimed.

Performing cross-domain thermal control in a processor

In one embodiment, the present invention includes a method for determining, in a controller of a multi-domain processor, whether a temperature of a second domain of the multi-domain processor is greater than a sum of a throttle threshold and a cross-domain margin, and if so, reducing a frequency of a first domain of the multi-domain processor by a selected amount. In this way, a temperature of the second domain can be allowed to reduce, given a thermal coupling of the domains. Other embodiments are described and claimed.

Controlling temperature of multiple domains of a multi-domain processor using a cross domain margin

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Hillsboro, OR, United States of America

Avinash N Ananthakrishan