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Comparison of numerical result checking mechanisms for FFT computations under faults

This thesis studies and compares existing Numerical Result checking algorithms for FFT computations under faults. In order to simulate faulty conditions,
a fault injection tool is implemented. The fault injection tool is designed so as to be as non-intrusive to the application as possible. Faults are injected into memory in the form of bit flips in the data elements of the application. The performance of the three
result checking algorithms under these conditions is studied and compared. Faults are injected at all the stages of the FFT computation by flipping each of the 64-bits in the double-precision representation. Experiments also include
introducing random bit flips in the data array, emulating a more real-life like scenario. Finally the performance of these algorithms under a set of worst-case is also studied

Identiferoai:union.ndltd.org:GATECH/oai:smartech.gatech.edu:1853/5126
Date01 January 2004
CreatorsBharthipudi, Saraswati
PublisherGeorgia Institute of Technology
Source SetsGeorgia Tech Electronic Thesis and Dissertation Archive
Languageen_US
Detected LanguageEnglish
TypeThesis
Format376374 bytes, application/pdf

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