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A BLAS-3 version of the QR factorization with column pivoting. (English) Zbl 0912.65034

From the authors’ abstract: We introduce a modification of the QR factorization with column pivoting (QRP) algorithm which allows the use of Level 3 BLAS kernels while maintaining the numerical behaviour of the LINPACK and LAPACK implementations.
Reviewer: Th.Sonar (Hamburg)

MSC:

65F25 Orthogonalization in numerical linear algebra
65F20 Numerical solutions to overdetermined systems, pseudoinverses

Software:

LAPACK; LINPACK; BLAS
Full Text: DOI