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Resilient Adaptive Algebraic Architecture for Parallel Detection and Correction of Soft-Errors

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6 Author(s)
Itturriet, F. ; Inst. de Inf., Univ. Fed. do Rio Grande do Sul, Porto Alegre, Brazil ; Ferreira, R. ; Girao, G. ; Nazar, G.
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A novel fault-tolerant microprocessor capable of detecting and correcting radiation-induced soft errors is proposed and evaluated. The Resilient Adaptive Algebraic Architecture performs time redundancy in parallel with matrix multiplication computation, guaranteeing on-the-fly detection and correction of errors disrupting data and logic with minimum overhead. We evaluate the RA3 microprocessor in terms of performance, area, energy consumption, and fault coverage by performing an extensive design space exploration of the architecture. Finally, we also discuss how the proposed architecture can be used to support a novel hardened-by-construction HW/SW stack based on what we call single-program execution.

Published in:

Digital System Design (DSD), 2012 15th Euromicro Conference on

Date of Conference:

5-8 Sept. 2012