Fast Symmetric Eigenvalue Decomposition via WY Representation on Tensor Core
Fast Symmetric Eigenvalue Decomposition via WY Representation on Tensor Core
复制标题
通过张量核心上的 WY 表示进行快速对称特征值分解
DOI:
10.1145/3572848.3577516
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Wu, Panruo
中科院分区:
文献类型:
--
作者:
Zhang, Shaoshuai;Shah, Ruchi;Ootomo, Hiroyuki;Yokota, Rio;Wu, Panruo
Symmetric eigenvalue decomposition (EVD) is a fundamental analytic and numerical tool used in many scientific areas. The state-of-the-art algorithm in terms of performance is typically the two-stage tridiagonalization method. The first stage in the two-stage tridiagonalization is called successive band reduction (SBR), which reduces a symmetric matrix to a band form, and its computational cost usually dominates. When Tensor Core (specialized matrix computational accelerator) is used to accelerate the expensive EVD, the conventional ZY-representation-based method results in suboptimal performance due to unfavorable shapes of the matrix computations. In this paper, we propose a new method that uses WY representation instead of ZY representation (see Section 3.2 for details), which can provide a better combination of locality and parallelism so as to perform better on Tensor Cores. Experimentally, the proposed method can bring up to 3.7x speedup in SBR and 2.3x in the entire EVD compared to state-of-the-art implementations.
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DOI:
--
发表时间:
2020
期刊:
ACM SIGPLAN Symposium on Scala
影响因子:
--
作者:
Shaoshuai Zhang;Vivek Karihaloo;Panruo Wu
通讯作者:
Panruo Wu
DOI:
10.1137/070699895
发表时间:
2008
期刊:
SIAM J. Matrix Anal. Appl.
影响因子:
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作者:
R. Byers;Hongguo Xu
通讯作者:
Hongguo Xu
DOI:
10.1145/2063384.2063394
发表时间:
2011
期刊:
2011 International Conference for High Performance Computing, Networking, Storage and Analysis (SC)
影响因子:
--
作者:
A. Haidar;H. Ltaief;J. Dongarra
通讯作者:
J. Dongarra
DOI:
--
发表时间:
2011
期刊:
International Conference on Parallel Computing
影响因子:
--
作者:
A. Gray;Alistair Hart;A. Richardson;K. Stratford
通讯作者:
K. Stratford
DOI:
--
发表时间:
2023
期刊:
The international journal of high performance computing applications
影响因子:
--
作者:
Florent Lopez;Théo Mary
通讯作者:
Théo Mary