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High Performance Computing and Grid in Asia Pacific Region, International Conference on (2004)
Omiya Sonic City, Tokyo, Japan
July 20, 2004 to July 22, 2004
ISBN: 0-7695-2138-X
pp: 236-243
Takao Hatazaki , Hewlett-Packard Japan, Ltd
ABSTRACT
Although recent large-scale scalar multiprocessor systems have good potential to overwhelm vector machines even in vector-specific application areas, the applicability has not been systematically studied. We ported 2 typical vector applications onto 2 different scalar NUMA platforms. We found that trivial array dimension reordering drastically affect performance. We also show that vector-specific programming methods could hinder scalar/NUMA system's performance. A general workaround we developed is described along with a discussion for platforms' memory systems characteristics.
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CITATION
Takao Hatazaki, "Lessons Learned from Porting Vector Computer Applications onto Non-Uniform Memory Access Scalar Machines", High Performance Computing and Grid in Asia Pacific Region, International Conference on, vol. 00, no. , pp. 236-243, 2004, doi:10.1109/HPCASIA.2004.1324040
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