JSIAM Letters
Online ISSN : 1883-0617
Print ISSN : 1883-0609
ISSN-L : 1883-0617
Articles
Cache optimization of a non-orthogonal joint diagonalization method
Yusuke HirotaYusaku YamamotoShao-Liang Zhang
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2011 Volume 3 Pages 9-12

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Abstract
The LUJ2D algorithm is a recently proposed numerical solution method for non-orthogonal joint diagonalization problems appearing in signal processing. The original LUJ2D algorithm attains low performance on modern microprocessors since it is dominated by cache ineffective operations. In this study, we propose a cache efficient implementation of the LUJ2D algorithm. The experimental results show that the proposed implementation is about 1.8 times faster than the original one, achieving 21\% of the peak performance on the Opteron 1210 processor using one core.
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© 2011 The Japan Society for Industrial and Applied Mathematics
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