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Signature-based store checking buffer

United States Patent

June 2, 2015
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A system and method for optimizing redundant output verification, are provided. A hardware-based store fingerprint buffer receives multiple instances of output from multiple instances of computation. The store fingerprint buffer generates a signature from the content included in the multiple instances of output. When a barrier is reached, the store fingerprint buffer uses the signature to verify the content is error-free.
Sridharan; Vilas (Brookline, MA), Gurumurthi; Sudhanva (Watertown, MA)
Advanced Micro Devices, Inc. (Sunnyvale, CA)
13/ 724,987
December 21, 2012
STATEMENT REGARDING FEDERALLY-SPONSORED RESEARCH AND DEVELOPMENT This invention was made with U.S. Government support under Prime Contract Number DE-AC52-07NA27344, Subcontract Number B600716 awarded by the Department of Energy (DOE). The U.S. Government has certain rights in this invention.