Parallel algorithms for QR decomposition on a shared memory multiprocessor
โ Scribed by K. Wright
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 733 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0167-8191
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โฆ Synopsis
Wright K., Parallel algorithms for QR decomposition on a shared memory multiprocessor, Parallel Computing 17 (1991) 779-790.
Various parallel implementations of algorithms for the QR decomposition of a matrix are compared using shared memory multiprocessors. Algorithms based on both Givens and Householder transformations are considered. A number of parallelisation techniques are used with particular emphasis on algorithms which allocate work to tasks dynamically. The results indicate that one version is significantly better than the others.
๐ SIMILAR VOLUMES
We present a task duplication based scheduling algorithm for shared memory multiprocessors (SMPs), called S2MP (scheduling for SMP), to address the problem of task scheduling. This algorithm employs heuristics to select duplication of tasks so that schedule length is reduced/minimized. The performan