The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2015
Filed:
Feb. 11, 2010
Vijay Janapa Reddi, Cambridge, MA (US);
Meeta Sharma Gupta, Boston, MA (US);
Glenn Holloway, Cambridge, MA (US);
Gu-yeon Wei, Cambridge, MA (US);
Michael D. Smith, Cambridge, MA (US);
David Brooks, Cambridge, MA (US);
Vijay Janapa Reddi, Cambridge, MA (US);
Meeta Sharma Gupta, Boston, MA (US);
Glenn Holloway, Cambridge, MA (US);
Gu-Yeon Wei, Cambridge, MA (US);
Michael D. Smith, Cambridge, MA (US);
David Brooks, Cambridge, MA (US);
President and Fellows of Harvard College, Cambridge, MA (US);
Abstract
In a preferred embodiment, the present invention is a system for avoiding voltage emergencies. The system comprises a microprocessor, an actuator for throttling the microprocessor, a voltage emergency detector and a voltage emergency predictor. The voltage emergency detector may comprise, for example, a checkpoint recovery mechanism or a sensor. The voltage emergency predictor of a preferred embodiment comprises means for tracking control flow instructions and microarchitectural events, means for storing voltage emergency signatures that cause voltage emergencies, means for comparing current control flow and microarchitectural events with stored voltage emergency signatures to predict voltage emergencies, and means for actuating said actuator to throttle said microprocessor to avoid predicted voltage emergencies.