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Title
Japanese: 
English:Linpack Evaluation on a Supercomputer with Heterogeneous Accelerators 
Author
Japanese: 遠藤敏夫, 額田彰, 松岡聡, 丸山直也.  
English: Toshio Endo, Akira Nukada, SATOSHI MATSUOKA, Naoya Maruyama.  
Language English 
Journal/Book name
Japanese: 
English:Proceedings of IEEE International Parallel & Distributed Processing Symposium (IPDPS 2010) 
Volume, Number, Page         page 10
Published date Apr. 2010 
Publisher
Japanese: 
English:IEEE 
Conference name
Japanese: 
English:IEEE International Parallel & Distributed Processing Symposium (IPDPS 2010) 
Conference site
Japanese: 
English:Atlanta 
Official URL http://www.ipdps.org/
 
DOI https://doi.org/10.1109/IPDPS.2010.5470353
Abstract We report Linpack benchmark results on the TSUBAME supercomputer, a large scale heterogeneous system equipped with NVIDIA Tesla GPUs and ClearSpeed SIMD accelerators. With all of 10,480 Opteron cores, 640 Xeon cores, 648 ClearSpeed accelerators and 624 NVIDIA Tesla GPUs, we have achieved 87.01TFlops, which is the second record as a heterogeneous system in the world. This paper describes careful tuning and load balancing method required to achieve this performance. On the other hand, since the peak speed is 163 TFlops, the efficiency is 53\%, which is lower than other systems. This paper also analyses this gap from the aspect of system architecture.

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