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Architectural Considerations for Exascale Supercomputing

In: Sustained Simulation Performance 2012

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  • Yasuo Ishii

    (NEC Corporation, HPC Division)

Abstract

Towards exascale supercomputing, both academia and industry have started to investigate the future HPC technologies. One of the most difficult challenges is the enhancement of energy efficiency of the computer system. We discuss the energy efficiency of existing architecture in this paper. With the analysis of the performance of the dense matrix–matrix multiplication (DGEMM), we propose the DGEMM-specialized Vector-SIMD architecture that only requires the small number of processor cores and low memory bandwidth. The DGEMM-specialized Vector-SIMD architecture can outperform existing architectures with respect to several metrics, as far as it is dedicated to limited usages, such as the DGEMM calculation. We conclude that this type of discussion will be essential in designing the future computer architecture.

Suggested Citation

  • Yasuo Ishii, 2013. "Architectural Considerations for Exascale Supercomputing," Springer Books, in: Michael M. Resch & Xin Wang & Wolfgang Bez & Erich Focht & Hiroaki Kobayashi (ed.), Sustained Simulation Performance 2012, edition 127, pages 13-24, Springer.
    • Handle: RePEc:spr:sprchp:978-3-642-32454-3_2
    DOI: 10.1007/978-3-642-32454-3_2
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