A Sparse Symmetric Indefinite Direct Solver for GPU Architectures
A Sparse Symmetric Indefinite Direct Solver for GPU Architectures
复制标题
GPU 架构的稀疏对称不定直接求解器
DOI:
10.1145/2756548
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发表时间:
2016
影响因子:
2.7
通讯作者:
Hogg J
中科院分区:
文献类型:
--
作者:
Hogg J
In recent years, there has been considerable interest in the potential for graphics processing units (GPUs) to speed up the performance of sparse direct linear solvers. Efforts have focused on symmetric positive-definite systems for which no pivoting is required, while little progress has been reported for the much harder indefinite case. We address this challenge by designing and developing a sparse symmetric indefinite solver SSIDS. This new library-qualityLDLTfactorization is designed for use on GPU architectures and incorporates threshold partial pivoting within a multifrontal approach. Both the factorize and the solve phases are performed using the GPU. Another important feature is that the solver produces bit-compatible results. Numerical results for indefinite problems arising from a range of practical applications demonstrate that, for large problems, SSIDS achieves performance improvements of up to a factor of 4.6 × compared with a state-of-the-art multifrontal solver on a multicore CPU.
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DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
J. Hogg;J. Scott
通讯作者:
J. Scott
影响因子:
3.1
作者:
N. Higham
通讯作者:
N. Higham
DOI:
10.1145/214392.214398
发表时间:
1985-06
期刊:
ACM Trans. Math. Softw.
影响因子:
--
作者:
Joseph W. H. Liu
通讯作者:
Joseph W. H. Liu
影响因子:
3.1
作者:
Hogg J
通讯作者:
Hogg J
DOI:
10.1145/2513109.2513113
发表时间:
2013
期刊:
ACM Trans. Math. Softw.
影响因子:
--
作者:
Jonathan D. Hogg;J. Scott
通讯作者:
J. Scott