关键词： 芯片集   PCI   Triton   母板   Intel   多处理器   Pentium   集成式   硬盘控制器   本约  

摘要： Intel、Opti和VLSI Technology的新型PCI芯片集正试图为系统制造商、母板制造商和消费者戏剧性地改变Pentium级市场的面貌。Intel率先推出了针对单处理器Pentium系统的Triton芯片集。其它PCI(Peripheral Component Interconnect)芯片集制造商不久将提供支持多处理器的Triton竞争产品。 该芯片集一般可将母板成本降低约20％。据Micronics称,基于Triton的中档母板需耗成本约250美元。

关键词： 网络资源服务   媒体服务器   二级高速缓存   单处理机   企业服务器   保护信息   数据库   MIPS   多处理器   最佳性能  

摘要： 当今及下一世纪对信息提出了新的要求,即要求有效地共享、交换及保护信息。SGI CHALLENGE网络资源服务器系列,在技术和商业分析计算市场上具有最佳性能价格比。 CHALLENGE服务器系列包括从小型、性能强的单处理机工作组服务器 CHALLENGES,到性能十分强大、能提供超过4000MIPS,具有36个微处理器的一致共享内存的企业服务器CHALLENGEXL。

关键词： 实时系统   调度算法   多处理器   线程   计算机模拟  

摘要： 本文介绍了对作者提出的一种基于线程的、动态的、非抢占的多处理器实时任务调度算法的计算机模拟和结果分析，表明该算法在单处理器情况下比许多单处理器实时任务调度算法的调度效率高，在多处理器情况下的调度效率也较高。

关键词： 移动机器人   多处理器   并行处理  

摘要： 多Ｔｒａｎｓｐｕｔｅｒ处理器和并行处理技术在移动机器人中的应用吴陈，吴翰声（华东船舶工业学院计算机科学与工程系镇江２１２００３）ＡＮＡＰＰＬＩＣＡＴＩＯＮＯＦＭＵＬＴＩＰＬＥＴＲＡＮＳＰＵＴＥＲＰＲＯＣＥＳＳＯＲＳＡＮＤＰＡＲＡＬＬＥＬＰＲＯＣＥＳＳ...

关键词： .Waveguide   cascaded   conjunction   BUSES   Bus Line   data transfer   VMEbus   Multi-Processor   holograms   Optical Backplane  

摘要： We report for the first time a bidirectional optical backplane bus for a high performance system containing nine multi-chip module (MCM) boards, operating at 632.8 and 1300 mm, The backplane bus reported here employs arrays of multiplexed polymer-based waveguide holograms in conjunction with a waveguiding plate, within which 16 substrate guided waves for 72 (8 x 9) cascaded fanouts, are generated, Data transfer of 1.2 Gbt/s at 1.3-mu m wavelength is demonstrated for a single bus line with 72 cascaded fanouts, Packaging-related issues such as transceiver size and misalignment are embarked upon to provide a reliable system with a wide bandwidth coverage, Theoretical treatment to minimize intensity fluctuations among the nine modules in both directions is further presented and an optimum design rule is provided, The backplane bus demonstrated, is for general-purpose and therefore compatible with such IEEE standardized buses as VMEbus, Futurebus and FASTBUS, and can function as a backplane bus in existing computing environments.

摘要： This thesis discusses a variety of parallel algorithms for linear algebra problems including the solution of the linear system of equations Ax = b using QR and L U decomposition, reduction of a general matrix A to Hessenberg form, reduction of a real symmetric matrix B to tridiagonal form, and solution of the symmetric tridiagonal eigenproblem. Empirical comparisons are carried out using various different versions of the above algorithms and this is described in this thesis. We also compare three different synchronisation mechanisms when applied to the reduction to Hessenberg form problem. We implement Cuppen's method for computing both eigenvalues and eigenvectors of a real symmetric tridiagonal matrix T using both recursive and non-recursive implementations. We consider parallel implementations of these versions and also consider parallelisation of the matrix multiplication part of the algorithm. We present some numerical results illustrating an experimental evaluation of the effect of deflation on accuracy, comparison of the parallel implementations and comparison of the additional parallelisation for matrix multiplication. A variety of algorithms are investigated which involve varying amounts of overlap between different parts of the calculation and collecting together updates as far as possible to make good use of the storage hierarchy of the shared memory multiprocessor. Algorithms using dynamic task allocation are compared with ones which do not. The results presented have been obtained using the C++ programming language, with parallel constructs provided by the Encore Parallel Threads package on a shared memory Encore Multimax (MIMD) computer. The experimental results demonstrate that dynamic task allocation can be sometimes very effective on this machine, and that very high efficiency is often obtainable with careful construction of the parallel algorithms even for relatively small matrices.

关键词： 多处理器   实时线程   任务调度   操作系统  

摘要： 在实时操作系统中，任务调度在处理器资源的管理中起着十分关键的作用。本文提出了一种基于线程的、动态的、非抢占的多处理器实时任务调度算法，该算法可以高效地在多处理器系统上同时进行周期性和非周期性实时线程的调度。本文还讨论了该算法在ＭＡＣＨ操作系统环境下的实现方法。

关键词： 自适应干扰   抑制   多处理器  

摘要： 本文描述了一个采用多处理器的自适应干扰抑制系统，讨论了系统的拓扑结构、组成框图及测试环境、自适应处理算法，给出了用于雷达数字波束形成系统自适应干扰抑制的实验结果。

关键词： 计算机网络   Banyan   VINES   可操纵性   网络操作系统   网络服务器   网络信息系统   网络媒体   多处理器   网络保护  

关键词： 实时成像处理   多处理器   合成孔径雷达   机载  

摘要： 本文在介绍机载合成孔径雷达实时成像处理器的工作原理和系统组成的基础上,阐述了我国自行研制的第一台机载SAR实时数字成像处理器的主要性能和初步应用结果,并给出了该成像系统产生的微波数字图像。