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Bidiagonalization with Parallel Tiled Algorithms
[article]
2016
arXiv
pre-print
We consider algorithms for going from a "full" matrix to a condensed "band bidiagonal" form using orthogonal transformations. We use the framework of "algorithms by tiles". Within this framework, we study: (i) the tiled bidiagonalization algorithm BiDiag, which is a tiled version of the standard scalar bidiagonalization algorithm; and (ii) the R-bidiagonalization algorithm R-BiDiag, which is a tiled version of the algorithm which consists in first performing the QR factorization of the initial
arXiv:1611.06892v1
fatcat:2sfb75c4xzhrtfzyzqdqlahyyy