Vertical-block decomposed parallel LU factorization method on a distributed memory parallel computer
-
- Imamura Toshiyuki
- CCSE, Japan Atomic Energy Research Institute.
Bibliographic Information
- Other Title
-
- 分散メモリ型並列計算機における縦ブロック分割並列LU分解
- ブンサン メモリガタ ヘイレツ ケイサンキ ニ オケル タテブロック ブンカツ
Search this article
Abstract
This paper describes a vertical-block decomposed parallel LU factorization method(hereafter VB-PLU), which processes effectively on a distributed memory parallel computer. Because VBPLU method is based on the block algorithm, the message aggregation technique and the block-cyclic distribution strategy, it can reduce issue of communication and improve load balance. Further-more this method ensures to use long vectors for updating in Gauss-elimination, thus it is also advantageous with vector processors. In this paper, VBPLU method is shown and computational costs are estimated. Its evaluations are confirmed through numerical experiments on two parallel computers, SR2201 and VPP300.
Journal
-
- Transactions of the Japan Society for Industrial and Applied Mathematics
-
Transactions of the Japan Society for Industrial and Applied Mathematics 8 (3), 373-388, 1998
The Japan Society for Industrial and Applied Mathematics
- Tweet
Details 詳細情報について
-
- CRID
- 1390282680744485760
-
- NII Article ID
- 110001883698
-
- NII Book ID
- AN10367166
-
- ISSN
- 09172246
- 24240982
-
- NDL BIB ID
- 4562698
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- CiNii Articles
-
- Abstract License Flag
- Disallowed