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FARHAD: A Fault-Tolerant Power-Aware Hybrid Adder for add intensive applications

Hajkazemi, M. H ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1109/ASAP.2013.6567569
  3. Publisher: 2013
  4. Abstract:
  5. This paper introduces an alternative Fault-Tolerant Power-Aware Hybrid Adder (or simply FARHAD). FARHAD is a highly power efficient protection solution against errors in application with high number of additions. FARHAD, similar to earlier studies, relies on performing add operations twice to detect errors. Unlike previous studies, FARHAD uses an aggressive adder to produce the initial outcome and a low-power adder to generate the second outcome, referred to as the checker. FARHAD uses checkpointing, a feature already available to high-performance processors, to recover from errors. FARHAD achieves the high energy-efficiency of timeredundant solutions and the high performance of resource-redundant adders. We evaluate FARHAD from power and performance points of view using a subset of SPEC'2K benchmark. Our evaluations show that FARHAD outperforms an alternative time-redundant solution by 20%. FARHAD reduces the power dissipation of an alternative resource-redundant adder by 40% while maintaining performance
  6. Keywords:
  7. Fault-tolerant adders ; Power-aware reliability ; Check pointing ; Fault-tolerant ; High performance processors ; Hybrid adder ; Low-power design ; Performance points ; Power efficient ; Power-aware ; Benchmarking ; Computer architecture ; Errors ; Adders
  8. Source: Proceedings of the International Conference on Application-Specific Systems, Architectures and Processors ; 2013 , Pages 153-159 ; 10636862 (ISSN) ; 9781479904921 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6567569&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D6567569