Rapid computation of the QR factorization of a matrix is fundamental to many scientific and engineering problems. The paper presents a family of algorithms parameterized by the number of processors available P, arithmetic grain aggregation parameters gl ,@, . . . ,gp, and communication grain aggrega
A parallel algorithm for the generalLU factorization
β Scribed by Kincaid, David R. ;Oppe, Thomas C.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1988
- Tongue
- English
- Weight
- 504 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0748-8025
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
By developing a generalized 1D approach and parallel computing algorithm, this paper presents a parallel algorithm design and hardware implementation for the computation of 4\_4 DCT. This algorithm sorts all the 2D input pixel data into four groups. Each group is then forwarded to a 1D DCT arithmeti
## Abstract An algorithm, which utilizes a high degree of parallel processing, has been developed for twoβdimensional rotatingβframe zeugmatography so that a picture of 256 X 256 pixels can be generated with a minicomputer system 2 sec after data accumulation. An array processor is employed as a se
The factorization problem in permutation groups is to represent an element g of some permutation group G as a word over a given set S of generators of G. For practical purposes, the word should be as short as possible, but must not be minimal. Like many other problems in computational group theory,
We present a parallel randomized algorithm running on a CRCW PRAM, to determine whether two planar graphs are isomorphic, and if so to find the isomorphism. We assume that we have a tree of separators for each planar graph Ε½ Ε½ 2 . 1 q β which can be computed by known algorithms in O log n time with