Abstract: The ever-increasing need for high performance in scientific computation and engineering applications will push high-performance computing beyond the exascale. As an integral part of a supercomputing system, high-performance processors and their architecture designs are crucial in improving system performance. In this paper, three architecture design goals for high-performance processors beyond the exascale are introduced, including effective performance scaling, efficient resource utilization, and adaptation to diverse applications. Then a high-performance many-core processor architecture with scalar processing and application-specific acceleration (Massa) is proposed, which aims to achieve the above three goals by employing the techniques of distributed computational resources and application-customized hardware. Finally, some future research directions regarding the Massa architecture are discussed.

Key words: High-performance computing, Beyond the exascale, Processor architecture, Application-customized hardware, Distributed computational resources

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