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MCIM-存储器为中心的互联机制的并行系统结构 被引量:4
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作者 李三立 武剑锋 戈弋 《小型微型计算机系统》 CSCD 北大核心 1997年第2期1-9,共9页
并行系统中各结点间的互联网络是高性能计算机的一个关键研究领域。30多年来传统上各种互联网络是以逻辑电路为基础所构成的〔1〕。然而,系统结构及其概念应随计算机工艺的进展而变化。本文提出一种新型的并行系统结构,它采用多端... 并行系统中各结点间的互联网络是高性能计算机的一个关键研究领域。30多年来传统上各种互联网络是以逻辑电路为基础所构成的〔1〕。然而,系统结构及其概念应随计算机工艺的进展而变化。本文提出一种新型的并行系统结构,它采用多端口快速静态存储器作为各结点机之间的互联机制MCIM。与传统的逻辑电路互联网络相比,MCIM可以减少MPP系统中的消息传递延迟;可以克服网络并行计算系统NPC中网络适配卡总线传递速率的瓶颈;可以大量减少网络协议开销。在当前VLSI工艺条件下,MCIM的实现是低价高效的。本文讨论了MCIM并行系统结构,通信路径的仲裁与选择。本文还阐述了MCIM仿真工具。 展开更多
关键词 MCIM 存储器 并行系统结构 互联机制
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“并行系统结构”的教学体系建设与实践 被引量:1
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作者 季伟东 张珑 +1 位作者 张军 王建华 《计算机教育》 2010年第8期112-114,共3页
本文通过分析"并行系统结构"课程的特点和在教学中所面临的实际问题,针对这些问题,提出一个兼顾课堂教学和课后实践的四层教学体系改革方案,并给出方案实施的具体方法和手段。
关键词 并行系统结构 四层教学体系 课程体系建设 课程实践
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并行系统的通讯效率问题 被引量:1
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作者 林洪 陈国良 《小型微型计算机系统》 CSCD 北大核心 1996年第1期7-12,共6页
巨量并行处理(MPP)强调并行系统结构和并行算法的可扩放性。在一个可扩放的并行系统结构上,可扩放的并行算法应该能够有效地利用不断增加的处理机,算法的有效性通常以算法运行时的处理机效率来衡量。一个被普遍忽视的因素是通讯... 巨量并行处理(MPP)强调并行系统结构和并行算法的可扩放性。在一个可扩放的并行系统结构上,可扩放的并行算法应该能够有效地利用不断增加的处理机,算法的有效性通常以算法运行时的处理机效率来衡量。一个被普遍忽视的因素是通讯效率,这是一个具有一般性的问题。本文给出了通讯效率的定义,研究了它与处理机效率的关系,并通过对一个典型算法的运行情况分析,研究了几个常见的并行系统结构的通讯效率。本文的结果表明:处理机效率和通讯效率的综合才能全面地评价算法的可扩放性并指导并行系统结构的设计。 展开更多
关键词 并行处理 并行算法 并行系统结构效率 可扩放性
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Baseband ASIP Design for SDR
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作者 LIU Dake 《China Communications》 SCIE CSCD 2015年第7期60-72,共13页
Baseband ASIP designs for handsets are discussed based on the author's R&D backgrounds. Algorithms for 4G, 3G, and WLAN are analyzed and selected for implementation based on the trade off of cost and performan... Baseband ASIP designs for handsets are discussed based on the author's R&D backgrounds. Algorithms for 4G, 3G, and WLAN are analyzed and selected for implementation based on the trade off of cost and performance with power consumption in mind. A SDR ASIP baseband system architecture is proposed for 4G and 3G mobile handsets. Function partitions for heterogeneous symbol processors are introduced to get higher performance over cost. Three structures for DFE, FFE, and Matrix symbol ASIP are proposed. The concept of bit parallel processor is introduced. Challenges of baseband processors for UDN of 5G were briefly introduced. Conclusions on ASIP architecture and system design are given for different baseband processors on different products. 展开更多
关键词 baseband ASIP architecture selection SDR
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Space and Temporal Distribution Analysis of Interictal Spike in Epilepsy
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作者 Mamadou Lamine Ndiaye Jean-Jacques Montois +1 位作者 Abel Kinie Papa Alioune Sarr Ndiaye 《Journal of Life Sciences》 2012年第8期840-847,共8页
Stereo-electroencephalography (SEEG) is the main investigation method for pre-surgical evaluation of patients suffering from drug-resistant partial epilepsy. SEEG signals reflect two types of paroxysmal activity: i... Stereo-electroencephalography (SEEG) is the main investigation method for pre-surgical evaluation of patients suffering from drug-resistant partial epilepsy. SEEG signals reflect two types of paroxysmal activity: ictal activity and interictal activity or interictal spikes (IS). The relationship between IS and ictal activity is an essential and recurrent question in epiletology. In this paper, we present a distributed and parallel architecture for space and temporal distribution analysis of IS, based on a distributed and collaborative methodology. The proposed approach exploits the SEEG data using vector analysis of the corresponding signals among multi-agents system. The objective is to present a new method to analyze and classify IS during wakefulness (W), light sleep (LS) and deep sleep (DS) stages. Temporal and spatial relationships between IS and seizure onset zone are compared during wakefulness, light sleep and deep sleep. Results show that space and temporal distribution for real data are not random but correlated. 展开更多
关键词 EPILEPSY sleep stage stereo-electroencephalography (SEEG) interictal spike signal processing multi-agent system.
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Hardware Architecture for RSA Cryptography Based on Residue Number System
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作者 郭炜 刘亚灵 +2 位作者 白松辉 魏继增 孙达志 《Transactions of Tianjin University》 EI CAS 2012年第4期237-242,共6页
A parallel architecture for efficient hardware implementation of Rivest Shamir Adleman(RSA) cryptography is proposed.Residue number system(RNS) is introduced to realize high parallelism,thus all the elements under the... A parallel architecture for efficient hardware implementation of Rivest Shamir Adleman(RSA) cryptography is proposed.Residue number system(RNS) is introduced to realize high parallelism,thus all the elements under the same base are independent of each other and can be computed in parallel.Moreover,a simple and fast base transformation is used to achieve RNS Montgomery modular multiplication algorithm,which facilitates hardware implementation.Based on transport triggered architecture(TTA),the proposed architecture is designed to evaluate the performance and feasibility of the algorithm.With these optimizations,a decryption rate of 106 kbps can be achieved for 1 024-b RSA at the frequency of 100 MHz. 展开更多
关键词 residue number system RSA cryptography Montgomery algorithm computer architecture parallelalgorithm
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Parallel architecture and optimization for discrete-event simulation of spike neural networks 被引量:5
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作者 TANG YuHua ZHANG BaiDa +3 位作者 WU JunJie HU TianJiang ZHOU Jing LIU FuDong 《Science China(Technological Sciences)》 SCIE EI CAS 2013年第2期509-517,共9页
Spike neural networks are inspired by animal brains,and outperform traditional neural networks on complicated tasks.However,spike neural networks are usually used on a large scale,and they cannot be computed on commer... Spike neural networks are inspired by animal brains,and outperform traditional neural networks on complicated tasks.However,spike neural networks are usually used on a large scale,and they cannot be computed on commercial,off-the-shelf computers.A parallel architecture is proposed and developed for discrete-event simulations of spike neural networks.Furthermore,mechanisms for both parallelism degree estimation and dynamic load balance are emphasized with theoretical and computational analysis.Simulation results show the effectiveness of the proposed parallelized spike neural network system and its corresponding support components. 展开更多
关键词 spike neural network discrete event simulation intelligent parallelization framework
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MATTER-ELEMENT MODELING OF PARALLEL STRUCTURE AND APPLICATION ABOUT EXTENSION PID CONTROL SYSTEM 被引量:3
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作者 Rongde LU Zonghai CHEN 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2006年第2期227-235,共9页
This article describes in detail a new method via the extension predictable algorithm of the matter-element model of parallel structure tuning the parameters of the extension PID controller. In comparison with fuzzy a... This article describes in detail a new method via the extension predictable algorithm of the matter-element model of parallel structure tuning the parameters of the extension PID controller. In comparison with fuzzy and extension PID controllers, the proposed extension PID predictable controller shows higher control gains when system states are away from equilibrium, and retains a lower profile of control signals at the same time. Consequently, better control performance is achieved. Through the proposed tuning formula, the weighting factors of an extension-logic predictable controller can be systematically selected according to the control plant. An experimental example through industrial field data and site engineers' experience demonstrates the superior performance of the proposed controller over the fuzzy controller. 展开更多
关键词 Extension control system matter modeling parallel structure PID predictable algorithm.
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