State history storage for synchronizing redundant processors

Embodiments of an invention for synchronizing redundant processors using state history are disclosed. In one embodiment, an apparatus includes two processors, state storage for each processor, and control logic. Each processor is to execute the same instructions. The state storage is to store compre...

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Bibliographic Details
Main Authors RACUNAS PAUL B, BISWAS ARIJIT, MUKHERJEE SHUBHENDU S, RAASCH STEVEN E
Format Patent
LanguageEnglish
Published 01.05.2012
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:Embodiments of an invention for synchronizing redundant processors using state history are disclosed. In one embodiment, an apparatus includes two processors, state storage for each processor, and control logic. Each processor is to execute the same instructions. The state storage is to store compressed processor state information for each instruction executed by the processors. The control logic is to synchronize the two processors based on entries from the state storage.
Bibliography:Application Number: US20080347961