𝔖 Bobbio Scriptorium
✦   LIBER   ✦

On iterative QR pre-processing in the parallel block-Jacobi SVD algorithm

✍ Scribed by Martin Bečka; Gabriel Okša; Marián Vajteršic; Laura Grigori

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
216 KB
Volume
36
Category
Article
ISSN
0167-8191

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Efficient pre-processing in the parallel
Efficient pre-processing in the parallel block-Jacobi SVD algorithm
✍ Gabriel Okša; Marián Vajteršic 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 272 KB

One way, how to speed up the computation of the singular value decomposition of a given matrix A 2 C mÂn ; m P n, by the parallel two-sided block-Jacobi method, consists of applying some pre-processing steps that would concentrate the Frobenius norm near the diagonal. Such a concentration should hop

On variable blocking factor in a paralle
On variable blocking factor in a parallel dynamic block––Jacobi SVD algorithm
✍ Martin Bečka; Gabriel Okša 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 225 KB

The parallel two-sided block-Jacobi singular value decomposition (SVD) algorithm with dynamic ordering, originally proposed in [Parallel Comput. 28 (2002) 243-262], has been extended with respect to the blocking factor '. Unlike the unique blocking factor ' ¼ 2p in the original algorithm running on