FailAmp: Relativization Transformation for Soft Error Detection in Structured Address Generation
Journal Article
·
· ACM Transactions on Architecture and Code Optimization
- Univ. of Utah, Salt Lake City, UT (United States)
- Microsoft Corporation, Redmond, WA (United States)
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
We present FailAmp, a novel LLVM program transformation algorithm that makes programs employing structured index calculations more robust against soft-errors. Without FailAmp, an offset error can go undetected; with FailAmp, all subsequent offsets are relativized, building on the faulty one. FailAmp can exploit ISAs such as ARM to further reduce overheads. We verify correctness properties of FailAMP using an SMT solver, and present a thorough evaluation using many HPC benchmarks under a fault injection campaign. FailAmp provides full soft-error detection for address calculation while incurring an average overhead of around 5%.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1599993
- Report Number(s):
- PNNL-SA--148816
- Journal Information:
- ACM Transactions on Architecture and Code Optimization, Journal Name: ACM Transactions on Architecture and Code Optimization Journal Issue: 4 Vol. 16; ISSN 1544-3566
- Publisher:
- Association for Computing MachineryCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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