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通过基于COTS器件的软件容错技术提高空间高可靠计算机的性能 被引量:1

Promote Performance of Highly Reliable Space Computer by Software Implemented Hardware Fault Tolerance Based on COTS
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摘要 在空间计算机的设计和制造中,高性能和高可靠是一对矛盾.使用防辐照器件制造空间计算机能够提高可靠性,但是防辐照器件不仅价格昂贵,而且在性能上远远落后于同时代的COTS器件,不能满足日益增长的空间高性能应用的需求;而使用COTS器件制造的计算机能够达到很高的性能,而且具有较高的性价比,但是在容错能力比不上防辐照器件,不能满足空间计算机在可靠性方面的要求.在COTS器件上实现软件容错,是提高空间高可靠计算机性能的方法之一,现已成为国际上的趋势.美国国家宇航局喷气推进实验室和Stanford大学的可靠性计算实验室在这些方面都进行了卓有成效的研究.然而在COTS器件上实现软件容错也带来了许多挑战.软件容错带来的性能和功耗开销、软件本身的容错能力等都是必须面对的问题.在介绍了基于COTS器件的软件容错技术的背景和发展情况后,又针对其中的主要问题提出了可能的解决方法,其中基于错误流模型的容错编译技术具有较高的实用价值.
出处 《计算机研究与发展》 EI CSCD 北大核心 2007年第z1期133-139,共7页 Journal of Computer Research and Development
基金 国家自然科学基金创新研究群体项目(60621003)
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参考文献25

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