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THE AUGMENTED BLOCK CIMMINO DISTRIBUTED METHOD

delete2015-01-01
delete19
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OA
AI
I
Iain Duff *
R
Ronan Guivarch
D
Daniel Ruiz
M
Mohamed Zenadi
DOI:10.1137/140961444delete
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摘要

摘要

En 中文
We introduce and study a novel way of accelerating the convergence of the block Cimmino method by augmenting the matrix so that the subspaces corresponding to the partitions are orthogonal. This results in a requirement to solve a relatively smaller symmetric positive definite system. We discuss several issues involved in a parallel implementation and illustrate the performance of our method on some realistic test problems.
Keyword:
hybrid methods
distributed solver
sparse matrices
row-projection techniques
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期刊

SIAM Journal on Scientific Computing 封面图
SIAM Journal on Scientific Computing
IF:
2.6
论文数:
5.1K
被引数:
1.8W

机构

S
science & technology facilities council (stfc)
学者数:
4.6K
论文数: 3.3K
被引数: 8
C
cerfacs
学者数:
530
论文数: 403
被引数: 1
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引用论文

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