关键词： 多处理器   产品系列  

摘要： 随着SUN公司对其Sparcstation 20产品系列的升级,以及HP公司推出其第一款多处理器工作站,该类型工作站市场的竞争将逐步加剧。

关键词： 多处理器系统   并行处理   数据处理   Sun  

摘要： Sun公司目前售出的台式系统中,有15％是多处理器系统,占多处理器台式机总市场的99％以上。 为了充分利用多处理器系统的并行处理能力,Sun公司和MARC公司两年来一直在共同开发流行的

关键词： ADDRESS CODING   COHERENT CACHES   DIFFERENCE CODING   INTERCONNECTION NETWORK   NETWORK TRAFFIC REDUCTION   PARALLEL PROCESSING   SHARED MEMORY MACHINE   TRACE DRIVEN SIMULATION  

摘要： A method of reducing the volume of data Bowing through the network in a shared memory parallel computer (multiprocessor) is described. The reduction is achieved by difference coding the memory addresses in messages sent between processing elements (PE's) and memories. In an implementation, each PE would store the last address sent to each memory, and vice versa. Messages that would normally contain an address instead contain the difference between the address associated with the current and most recent messages. Trace-driven simulation shows that only 70% or less of traffic volume (including data and overhead) is necessary, even in systems using coherent caches. The reduction in traffic could result in a lower cost or lower latency network. The cost of the hardware to achieve this is small, and the delay added is insignificant compared to network latency.

关键词： 微处理器   并行通信接口   计算机  

摘要： 由于目前大多数工程设计要求把若干个处理器做在一块线路板上,因此内部处理器通信电路的设计变得越来越重要。绝大部分的微处理器本身均带有高速的串行接口,它可简化通信功能的设计。然而这些接口往往不能对通信功能进行监控,因为这些接口还要执行其它任务。例如,时间判别数据处理功能。

关键词： 并行处理器   多处理网络   软件检测  

摘要： 介绍了TRANSPUTER网络硬件故障的一种软件检测技术.

关键词： 文件系统   硬盘数据   天津劝业场   多媒体会议   多处理器   盘片   计算机教育   双处理器   输入方法   处理器系统  

摘要： 新技术使CD ROM空间得到压缩【本刊讯】一家新成立的公司EWB日前宣布推出一种类似于硬盘数据压缩的新技术capaCD,使CDROM盘片的空间得到可观的压缩。capaCD技术在CD ROM上建立一个附加的存储层,称为虚拟介质层而得到数据的压缩。虚拟介质层的工作独立于CD ROM的文件系统,因而capaCD技术与标准的CD ROM文件系统及专有文件系统兼容。据介绍,capaCD技术的采用与具体的CD

关键词： BUS-BASED SYSTEMS   MEMORY BANDWIDTH   HIERARCHICAL MULTIPROCESSORS   PERFORMANCE ANALYSIS   PACKET-SWITCHED NETWORKS   QUEUING MODEL   OPEN AND CLOSED QUEUING NETWORKS   MVA ALGORITHM  

摘要： A multiple bus system provides more bandwidth and a high degree of fault tolerance than a single bus system. But such a system becomes very expensive for a large number of processors and memory modules, due to the requirement of too many connections (switches). Lang proposed a different bus-based system, known as the partial multiple bus system, which requires less number of connections than multiple bus system, but with a slight degradation in system performance. This paper presents a new type of bus-based system, called the multilevel bus system. Such a bus architecture can be used to design hierarchical multiprocessors. This bus-based system requires significantly less number of connections than multiple and partial multiple bus systems. This system is very cost effective, compared to multiple and partial multiple bus systems, when there exists some locality in computations. Analytical and simulation models have been developed to determine the performance of both synchronous and asynchronous multilevel bus systems. The results obtained from the analysis show that a multilevel bus system performs fairly close to other bus-based systems for the hierarchical reference (HR) model. In the HR model a processor accesses its nearest memory modules more frequently than other memory modules.

关键词： 总线   多处理器   性能   Cache线  

关键词： 紧耦合多处理器   并行处理   系统设计  

摘要： Pentium处理器组成的紧耦合多处理器系统的设计方案.

关键词： 数字图像处理   数字信号处理器   图像跟踪系统   指令周期   多处理器   视频处理器   并行处理   目标像素   处理单元   脉动阵列结构  

摘要： 本文讨论了实时数字图像处理过程中的难点及目前解决这些难点的几种方法,并结合笔者曾参加的某项课题,介绍了数字信号处理器(Digital Signal Processor)芯片——TMS32010在实时图像跟踪系统中的应用.