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Post-exascale supercomputing: research opportunities abound Editorial

Zuo-ning CHEN, Jack DONGARRA, Zhi-wei XU

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 10, Pages 1203-1208 doi: 10.1631/FITEE.1830000

Abstract:

Keywords： valign= top class= J_zhaiyao

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Application software beyond exascale: challenges and possible trends None

Guang-wen YANG, Hao-huan FU

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 10, Pages 1267-1272 doi: 10.1631/FITEE.1800459

Abstract:

With various exascale systems in different countries planned over the next three to five years, developing application software for such unprecedented computing capabilities and parallel scaling becomes a major challenge. In this study, we start our discussion with the current 125-Pflops Sunway TaihuLight system in China and its related application challenges and solutions. Based on our current experience with Sunway TaihuLight, we provide a projection into the next decade and discuss potential challenges and possible trends we would probably observe in future high performance computing software.

Keywords： Supercomputing Exascale Application

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Technology trends in large-scale high-efficiency network computing Review

Jinshu SU, Baokang ZHAO, Yi DAI, Jijun CAO, Ziling WEI, Na ZHAO, Congxi SONG, Yujing LIU, Yusheng XIA

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 12, Pages 1733-1746 doi: 10.1631/FITEE.2200217

Abstract: is the basis for large-scale high-efficiency network computing, such as , , big data processing, and artificial intelligence computing. The network technologies of network computing systems in different fields not only learn from each other but also have targeted design and optimization. Considering it comprehensively, three , i.e., integration, differentiation, and optimization, are summarized in this paper for network technologies in different fields. Integration reflects that there are no clear boundaries for network technologies in different fields, differentiation reflects that there are some unique solutions in different application fields or innovative solutions under new application requirements, and optimization reflects that there are some optimizations for specific scenarios. This paper can help academic researchers consider what should be done in the future and industry personnel consider how to build efficient practical network systems.

Keywords： Supercomputing Cloud computing Network technology Development trends

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Scalability and efficiency challenges for the exascale supercomputing system: practice of a parallel Research Article

Xiaobin HE, Xin CHEN, Heng GUO, Xin LIU, Dexun CHEN, Yuling YANG, Jie GAO, Yunlong FENG, Longde CHEN, Xiaona DIAO, Zuoning CHEN,hexiaobin_1984@163.com,ischen.xin@foxmail.com,yyylx@263.net,adch@263.net

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 1, Pages 41-58 doi: 10.1631/FITEE.2200412

Abstract: With the continuous improvement of performance and the integration of artificial intelligence with traditional scientific computing, the scale of applications is gradually increasing, from millions to tens of millions of computing cores, which raises great challenges to achieve high scalability and efficiency of parallel applications on super-large-scale systems. Taking the exascale prototype system as an example, in this paper we first analyze the challenges of high scalability and high efficiency for parallel applications in the exascale era. To overcome these challenges, the optimization technologies used in the parallel supporting environment software on the exascale prototype system are highlighted, including the parallel operating system, input/output (I/O) optimization technology, parallel debugging technology, 10-million-core parallel algorithm, and mixed-precision method. Parallel operating systems and I/O optimization technology mainly support large-scale system scaling, while the parallel debugging technology, 10-million-core parallel algorithm, and mixed-precision method mainly enhance the efficiency of large-scale applications. Finally, the contributions to various applications running on the exascale prototype system are introduced, verifying the effectiveness of the parallel supporting environment design.

Keywords： Parallel computing Sunway Ultra-large-scale Supercomputer