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Extreme-scale parallel computing: bottlenecks and strategies None

Ze-yao MO

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 10, Pages 1251-1260 doi: 10.1631/FITEE.1800421

Abstract:

Extreme-scale numerical simulations seriously demand extreme parallel computing capabilities.challenges of these capabilities toward exascale, we systematically analyze the major bottlenecks of parallelcomputing research from three perspectives: computational scale, computing efficiency, and programmingThis study will be useful in synchronizing development between the numerical computing capability and

Keywords： Extreme scale Numerical simulation Parallel computing Supercomputers

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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, availabilityWith 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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A Parallel Adaptive Metropolis Algorithm for Uncertainty

Cheng Chuntian,Li Xiangyang

Strategic Study of CAE 2007, Volume 9, Issue 9, Pages 47-51

Abstract: In this paper the Parallel Adaptive Metropolis (PAM) algorithm is presented to access the parameters The performance of the PAM algorithm is greatly improved in the manner of parallel computing.

Keywords： hydrologic model uncertainty assessment MCMC PAM parallel computing

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Efficient parallel implementation of a density peaks clustering algorithm on graphics processing unit Article

Ke-shi GE, Hua-you SU, Dong-sheng LI, Xi-cheng LU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 7, Pages 915-927 doi: 10.1631/FITEE.1601786

Abstract: In light of our analysis, we propose an efficient parallel DP algorithm targeting on a GPU architectureand implement this parallel method with compute unified device architecture (CUDA), called the ‘CUDA-DP

Keywords： Density peak Graphics processing unit Parallel computing Clustering

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Towards adaptable and tunable cloud-based map-matching strategy for GPS trajectories Article

Aftab Ahmed CHANDIO,Nikos TZIRITAS,Fan ZHANG,Ling YIN,Cheng-Zhong XU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 12, Pages 1305-1319 doi: 10.1631/FITEE.1600027

Abstract: Smart cities have given a significant impetus to manage traffic and use transport networks in an intelligent way. For the above reason, intelligent transportation systems (ITSs) and location-based services (LBSs) have become an interesting research area over the last years. Due to the rapid increase of data volume within the transportation domain, cloud environment is of paramount importance for storing, accessing, handling, and processing such huge amounts of data. A large part of data within the transportation domain is produced in the form of Global Positioning System (GPS) data. Such a kind of data is usually infrequent and noisy and achieving the quality of real-time transport applications based on GPS is a difficult task. The map-matching process, which is responsible for the accurate alignment of observed GPS positions onto a road network, plays a pivotal role in many ITS applications. Regarding accuracy, the performance of a map-matching strategy is based on the shortest path between two con-secutive observed GPS positions. On the other extreme, processing shortest path queries (SPQs) incurs high computational cost. Current map-matching techniques are approached with a fixed number of parameters, i.e., the number of candidate points (NCP) and error circle radius (ECR), which may lead to uncertainty when identifying road segments and either low-accurate results or a large number of SPQs. Moreover, due to the sampling error, GPS data with a high-sampling period (i.e., less than 10 s) typically contains extraneous datum, which also incurs an extra number of SPQs. Due to the high computation cost incurred by SPQs, current map-matching strategies are not suitable for real-time processing. In this paper, we propose real-time map-matching (called RT-MM), which is a fully adaptive map-matching strategy based on cloud to address the key challenge of SPQs in a map-matching process for real-time GPS trajectories. The evaluation of our approach against state-of-the-art approaches is per-formed through simulations based on both synthetic and real-world datasets.

Keywords： Map-matching GPS trajectories Tuning-based Cloud computing Bulk synchronous parallel

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Edge Computing Technology: Development and Countermeasures

Hong Xuehai and Wang Yang

Strategic Study of CAE 2018, Volume 20, Issue 2, Pages 20-26 doi: 10.15302/J-SSCAE-2018.02.004

Abstract:

Edge computing is an emerging technology that reduces transmission delaysand bandwidth consumption by placing computing, storage, bandwidth, applications, and other resourcesMobile terminals, Internet of things, and other devices provide the necessary front-end support for computingThis paper discusses the concept of edge computing, key problems that require solutions, main advancesin edge computing, influence of edge computing developments, and opportunities and development countermeasures

Keywords： cloud computing edge computing fog computing mobile edge computing internet of things front-end

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Bridging the gap: Neuro-Symbolic Computing for advanced AI applications in construction

Frontiers of Engineering Management Pages 727-735 doi: 10.1007/s42524-023-0266-0

Abstract: The integration of Neuro-Symbolic Computing (NSC), an emerging field that combines DL and symbolic reasoning

Keywords： advanced AI in construction safety and quality inspection Neuro-Symbolic Computing Deep Learning

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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:

In the beginning of the 21st century, driven by application requirements, the research and development of HEC are getting a new upsurge both in China and abroad. This paper analyses the development status and trends of international HEC, describes the overall development and application status of HEC in China, introduces the major technical features and application achievements of Sunway series high-performance computers; discusses the problems faced by today's HEC technologies, and finally makes some suggestions on how to extend progress in the HEC industry in China.

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

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Structural optimization of typical rigid links in a parallel kinematic machine

Xinjun LIU, Zhidong LI, Xiang CHEN

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3, Pages 344-353 doi: 10.1007/s11465-011-0227-x

Abstract:

The motion dynamics and accuracy of parallel kinematic machines largely depend on the weights andwork employs the techniques of topology and size optimization to design two typical rigid links of a parallel

Keywords： topology optimization size optimization parallel kinematic machine (PKM)

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Optimal design of a linkage–cam mechanism-based redundantly actuated parallel manipulator

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3, Pages 451-467 doi: 10.1007/s11465-021-0634-6

Abstract: A redundantly actuated parallel manipulator (RAPM) with mixed translational and rotational degrees of

Keywords： redundant actuation parallel manipulator linkage–cam mechanism Jacobian optimal design

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Variable identification and automatic tuning of the main module of a servo system of parallel mechanism

YANG Zhiyong, XU Meng, HUANG Tian, NI Yanbing

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1, Pages 82-88 doi: 10.1007/s11465-007-0014-x

Abstract: The variables of the main module of a servo system for miniature reconfigurable parallel mechanism were

Keywords： acceleration reconfigurable parallel additive sequence parallel mechanism

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Cusp points and assembly changing motions in the PRR-PR-PRR planar parallel manipulator

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0743-x

Abstract: Most parallel manipulators have multiple solutions to the direct kinematic problem.study investigates the cusp points and assembly changing motions in a two degrees of freedom planar parallel

Keywords： planar parallel manipulator assembly changing motions cusp points quartic polynomial discriminant

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A rolling 3-UPU parallel mechanism

Zhihuai MIAO, Yan’an YAO, Xianwen KONG

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4, Pages 340-349 doi: 10.1007/s11465-013-0282-6

Abstract:

A novel rolling mechanism is proposed based on a 3-UPU parallel mechanism in this paper.

Keywords： parallel mechanism rolling mechanism screw theory

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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: 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 oninput/output (I/O) optimization technology, parallel debugging technology, 10-million-core parallelwhile the parallel debugging technology, 10-million-core parallel algorithm, and mixed-precision method

Keywords： Parallel computing Sunway Ultra-large-scale Supercomputer

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Group-based multiple pipe routing method for aero-engine focusing on parallel layout

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4, Pages 798-813 doi: 10.1007/s11465-021-0645-3

Abstract: in limited three-dimensional space is a typical nondeterministic polynomial hard problem, where the parallelThis paper presents an automatic multiple pipe routing method for aero-engine that focuses on parallelFurthermore, to eliminate the minor angle deviation of parallel pipes that would cause assembly stress

Keywords： multiple pipe routing optimization algorithm aero-engine pipe grouping parallel layout