Correcting soft errors online in LU factorization

@inproceedings{Davies2013CorrectingSE,
  title={Correcting soft errors online in LU factorization},
  author={Teresa Davies and Zizhong Chen},
  booktitle={HPDC},
  year={2013}
}
In high-performance systems, the probability of failure is higher with more processors. Errors in calculations may occur that cannot be detected by outside means. To address this problem, we create a checksum-based approach that detects and recovers from calculation errors. We apply this approach to the LU factorization algorithm used by High Performance Linpack. Our approach has low overhead; in contrast to an existing approach that requires repeated calculation, it repeats only a fraction of… CONTINUE READING
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