Journal Article

The Sunway TaihuLight supercomputer： system and applications

Haohuan FU Junfeng LIAO Jinzhe YANG Lanning WANG Zhenya SONG Xiaomeng HUANG Chao YANG Wei XUE Fangfang LIU Fangli QIAO Wei ZHAO Xunqiang YIN Chaofeng HOU Chenglong ZHANG Wei GE Jian ZHANG Yangang WANG Chunbo ZHOU Guangwen YANG

2016

Overview

The Sunway TaihuLight supercomputer is the world＇s first system with a peak performance greater than 100 PFlops. In this paper, we provide a detailed introduction to the TaihuLight system. In contrast with other existing heterogeneous supercomputers, which include both CPU processors and PCIe-connected many-core accelerators （NVIDIA GPU or Intel Xeon Phi）, the computing power of TaihuLight is provided by a homegrown many-core SW26010 CPU that includes both the management processing elements （MPEs） and computing processing elements （CPEs） in one chip. With 260 processing elements in one CPU, a single SW26010 provides a peak performance of over three TFlops. To alleviate the memory bandwidth bottleneck in most applications, each CPE comes with a scratch pad memory, which serves as a user-controlled cache. To support the parallelization of programs on the new many-core architecture, in addition to the basic C/C＋＋ and Fortran compilers, the system provides a customized Sunway OpenACC tool that supports the OpenACC 2.0 syntax. This paper also reports our preliminary efforts on developing and optimizing applications on the TaihuLight system, focusing on key application domains, such as earth system modeling, ocean surface wave modeling, atomistic simulation, and phase-field simulation.

• Publisher: Science China Press,Springer Nature B.V
• Subject: Central processing units / Computation / Computer memory / Computer Science / CPUs / CPU处理器 / Fortran编译器 / Information Systems and Communication Service / NVIDIA / Ocean models / Ocean surface / Research Paper / Supercomputers / Surface waves / Xeon / 地球系统 / 多核心 / 应用程序 / 超级计算机