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High End Computing in China and the Exploration of “Sunway” Computers

Chen Zuoning

Strategic Study of CAE 2004, Volume 6, Issue 9, Pages 23-28

Abstract: HEC in China, introduces the major technical features and application achievements of Sunway series high-performance

Keywords： high-end computing grid computing high performance service high productivity computing total cost of

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Self-deployed execution environment for high performance computing Research Articles

Mingtian SHAO, Kai LU, Wenzhe ZHANG

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 6, Pages 845-857 doi: 10.1631/FITEE.2100016

Abstract:

Traditional (HPC) systems provide a standard preset environment to support scientific computation. However, HPC development needs to provide support for more and more diverse applications, such as artificial intelligence and big data. The standard preset environment can no longer meet these diverse requirements. If users still run these emerging applications on HPC systems, they need to manually maintain the specific dependencies (libraries, environment variables, and so on) of their applications. This increases the development and deployment burden for users. Moreover, the multi-user mode brings about privacy problems among users. Containers like Docker and Singularity can encapsulate the job's , but in a highly customized HPC system, cross-environment application deployment of Docker and Singularity is limited. The introduction of container images also imposes a maintenance burden on system administrators. Facing the above-mentioned problems, in this paper we propose a self-deployed (SDEE) for HPC. SDEE combines the advantages of traditional virtualization and modern containers. SDEE provides an isolated and customizable environment (similar to a virtual machine) to the user. The user is the root user in this environment. The user develops and debugs the application and deploys its special dependencies in this environment. Then the user can load the job to compute nodes directly through the traditional HPC job management system. The job and its dependencies are analyzed, packaged, deployed, and executed automatically. This process enables transparent and rapid job deployment, which not only reduces the burden on users, but also protects user privacy. Experiments show that the overhead introduced by SDEE is negligible and lower than those of both Docker and Singularity.

Keywords： Execution environment High performance computing Light-weight Isolation Overlay

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The Current Status and Trends of High Performance computing Technology

Han Jizhong,Han Chengde

Strategic Study of CAE 2000, Volume 2, Issue 1, Pages 85-86

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Exploring high-performance processor architecture beyond the exascale None

Xiang-hui XIE, Xun JIA

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 10, Pages 1224-1229 doi: 10.1631/FITEE.1800424

Abstract:

The ever-increasing need for high performance in scientific computation and engineering applicationswill push high-performance computing beyond the exascale.In this paper, three architecture design goals for high-performance processors beyond the exascale areintroduced, including effective performance scaling, efficient resource utilization, and adaptationThen a high-performance many-core processor architecture with scalar processing and application-specific

Keywords： High-performance computing Beyond the exascale Processor architecture Application-customized hardware

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Storagewall for exascale supercomputing Article

Wei HU,Guang-ming LIU,Qiong LI,Yan-huang JIANG,Gui-lin CAI

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 11, Pages 1154-1175 doi: 10.1631/FITEE.1601336

Abstract: The mismatch between compute performance and I/O performance has long been a stumbling block as supercomputersparallel applications are I/O intensive, and their overall running times are typically limited by I/O performanceTo quantify the I/O performance bottleneck and highlight the significance of achieving scalable performanceexistence theorems for the storage wall, and classifying the system architectures depending on I/O performance

Keywords： Storage-bounded speedup Storage wall High performance computing Exascale computing

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FTRP: a new fault tolerance framework using process replication and prefetching for high-performancecomputing Research

Wei HU, Guang-ming LIU, Yan-huang JIANG

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 10, Pages 1273-1290 doi: 10.1631/FITEE.1601450

Abstract:

As the scale of supercomputers rapidly grows, the reliability problem dominates the system availability. Existing fault tolerance mechanisms, such as periodic checkpointing and process redundancy, cannot effectively fix this problem. To address this issue, we present a new fault tolerance framework using process replication and prefetching (FTRP), combining the benefits of proactive and reactive mechanisms. FTRP incorporates a novel cost model and a new proactive fault tolerance mechanism to improve the application execution efficiency. The novel cost model, called the ‘work-most’ (WM) model, makes runtime decisions to adaptively choose an action from a set of fault tolerance mechanisms based on failure prediction results and application status. Similar to program locality, we observe the failure locality phenomenon in supercomputers for the first time. In the new proactive fault tolerance mechanism, process replication with process prefetching is proposed based on the failure locality, significantly avoiding losses caused by the failures regardless of whether they have been predicted. Simulations with real failure traces demonstrate that the FTRP framework outperforms existing fault tolerance mechanisms with up to 10% improvement in application efficiency for common failure prediction accuracy, and is effective for petascale systems and beyond.

Keywords： High-performance computing Proactive fault tolerance Failure locality Process replication Process prefetching

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High End Computing Software Platform R & D

Chen Zuoning

Strategic Study of CAE 2002, Volume 4, Issue 9, Pages 45-49

Abstract:

High end computing software platform is the basic guarantee for implementing the friendship, availabilityand high efficiency of the entire machine.With the ever increase of computing scale and the emerging of new computing patterns, such as Peer-to-peerThis paper describes and analyses the development of high end computing software platform and the designingThen the design case of a certain high end computing platform software system will be introduced and

Keywords： high end computing MPP OS parallel development environment parallel application environment

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ONFS: a hierarchical hybrid file system based on memory, SSD, andHDDfor high performance computers Article

Xin LIU, Yu-tong LU, Jie YU, Peng-fei WANG, Jie-ting WU, Ying LU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 12, Pages 1940-1971 doi: 10.1631/FITEE.1700626

Abstract: checkpointing include substantial bandwidth and an extremely low latency, posing a serious challenge to highperformance computing (HPC) storage systems.It supports portable operating system interface (POSIX) semantics, and provides high bandwidth, low latencyWe implement an ONFS prototype on the TH-1A supercomputer, and conduct experiments to test its I/O performance

Keywords： High performance computing Hierarchical hybrid storage system Distributed metadata management Data

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Performance of steel bridge deck pavement structure with ultra high performance concrete based on resin

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4, Pages 895-904 doi: 10.1007/s11709-021-0759-z

Abstract: research investigated a pavement system on steel bridge decks that use epoxy resin (EP) bonded ultra-highperformance concrete (UHPC).the interface of the pavement layer, reinforcement, and different paving materials on the structural performancea fixed force of 9 kN and a dynamic deflection of 0.35 mm, which meets the requirements for fatigue performance

Keywords： steel bridge deck pavement ultra-high-performance concrete epoxy resin composite structure bendingfatigue performance

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Micromixing performance of the teethed high shear mixer under semi-batch operation

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4, Pages 546-559 doi: 10.1007/s11705-021-2069-3

Abstract: Herein the structural and operating parameters of the teethed high shear mixers were adjusted to studythe micromixing performance in the semi-batch operated system, using the Villermaux/Dushman reactionthe evolution of the flow pattern and turbulent energy dissipation rate of the semi-batch operated highwork, which can provide valuable guidance on the design and optimization of the semi-batch operated high

Keywords： high shear mixer semi-batch operation micromixing performance Villermaux/Dushman system segregation

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Experimental research on cyclone performance at high temperature

LI Wenqi, CHEN Jianyi

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3, Pages 310-317 doi: 10.1007/s11465-007-0055-1

Abstract: To predict the influence of operating temperatures on cyclone performance, an experimental investigationA nondimensional experimental correlation of the cyclone performance, including the influence of temperature

Keywords： diameter definite function nondimensional experimental cyclone performance influence

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Recovery and reuse of floc sludge for high-performance capacitors

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1512-5

Abstract:

• The feasibility of facile fabrication of capacitor from floc sludge is discussed.

Keywords： Floc sludge Porous carbon electrode Energy storage performance Supercapacitors

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Effect of cavity defect on the triaxial mechanical properties of high-performance concrete

Yanbin ZHANG; Zhe WANG; Mingyu FENG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 5, Pages 600-614 doi: 10.1007/s11709-022-0821-5

Abstract: concentration of pipe structure or cavity defect has a great effect on the mechanical properties of the high-performance

Keywords： high-performance concrete cavity conventional triaxial compression pressurized liquid modified power-law

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Flexural and longitudinal shear performance of precast lightweight steel–ultra-high performance concrete

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5, Pages 704-721 doi: 10.1007/s11709-023-0941-6

Abstract: study, the flexural and longitudinal shear performances of two types of precast lightweight steel–ultra-highperformance concrete (UHPC) composite beams are investigated, where a cluster UHPC slab (CUS) and a

Keywords： precast steel–UHPC composite beam flexural performance longitudinal shear performance parametric study