FT-ScaLAPACK: correcting soft errors on-line for ScaLAPACK cholesky, QR, and LU factorization routines

@inproceedings{Wu2014FTScaLAPACKCS,
  title={FT-ScaLAPACK: correcting soft errors on-line for ScaLAPACK cholesky, QR, and LU factorization routines},
  author={Panruo Wu and Zizhong Chen},
  booktitle={HPDC},
  year={2014}
}
It is well known that soft errors in linear algebra operations can be detected off-line at the end of the computation using algorithm-based fault tolerance (ABFT). However, traditional ABFT usually cannot correct errors in Cholesky, QR, and LU factorizations because any error in one matrix element will be propagated to many other matrix elements and hence cause too many errors to correct. Although, recently, tremendous progresses have been made to correct errors in LU and QR factorizations… CONTINUE READING
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Fault tolerant matrix triangularization and solution of linear systems of equations

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