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DFT
2003
IEEE

Exploiting Instruction Redundancy for Transient Fault Tolerance

14 years 3 months ago
Exploiting Instruction Redundancy for Transient Fault Tolerance
This paper presents an approach for integrating fault-tolerance techniques into microprocessors by utilizing instruction redundancy as well as time redundancy. Smaller and smaller transistors, higher and higher clock frequency, and lower and lower power supply voltage reduce reliability of microprocessors. In addition, microprocessors are used in systems which require high dependability, such as e-commerce businesses. Based on these trends, it is expected that the quality with respect to reliability will become important as well as performance and cost for future microprocessors. To meet the demand, we have proposed and evaluated a fault-tolerance mechanism, which is based on instruction reissue and utilizes time redundancy, and found severe performance loss. In order to mitigate the loss, this paper proposes to exploit instruction redundancy. Using the reuse table, previously executed computing is reused for checking the occurrence of transient faults. From detailed simulations, we ...
Toshinori Sato
Added 04 Jul 2010
Updated 04 Jul 2010
Type Conference
Year 2003
Where DFT
Authors Toshinori Sato
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