High availability access to input/output devices in a distributed system
    4.
    发明授权
    High availability access to input/output devices in a distributed system 失效
    高可用性访问分布式系统中的输入/输出设备

    公开(公告)号:US6151684A

    公开(公告)日:2000-11-21

    申请号:US48938

    申请日:1998-03-26

    IPC分类号: G06F11/20 G06F11/00

    摘要: A system area network computer system architecture is structured as a single system image cluster operating system to offer an opportunity to increase the availability to I/O devices in the system. The computing system comprises a number of processor units coupled to a plurality of input/output (I/O) elements by a routing fabric that provides each of the processor elements with access to any one of the I/O elements. Using a Transparent Network Computing extension to a highly available version of UNIX System V Release 4.2, the system provides a higher degree of availability to I/O devices by providing for the takeover of their controlling entity.

    摘要翻译: 系统区域网络计算机系统架构被构造为单个系统映像集群操作系统,以提供增加系统中I / O设备的可用性的机会。 计算系统包括多个处理器单元,其通过路由结构耦合到多个输入/输出(I / O)元件,该布线结构为每个处理器元件提供对任何一个I / O元件的访问。 使用透明网络计算扩展到UNIX System V Release 4.2的高可用性版本,该系统通过提供其控制实体的接管为I / O设备提供更高程度的可用性。

    Simulation framework with support for multiple integrated circuits having potentially differing characteristics
    5.
    发明授权
    Simulation framework with support for multiple integrated circuits having potentially differing characteristics 有权
    具有支持具有潜在不同特性的多个集成电路的仿真框架

    公开(公告)号:US07873506B2

    公开(公告)日:2011-01-18

    申请号:US10609781

    申请日:2003-06-30

    IPC分类号: G06F17/50 G06F9/455

    CPC分类号: G06F17/5022

    摘要: The operation of an electronic system comprising a plurality of integrated circuits or other circuit elements is simulated using a software-based development tool that provides a generic framework for simultaneous simulation of multiple circuit elements having potentially different clock speeds, latencies or other characteristics. One or more interfaces provided in the software-based development tool permit registration of processing events associated with one or more of the circuit elements. The software-based development tool is further operative to determine a system clock for a given simulation, and to schedule execution of the associated processing events in a manner that takes into account differences between the system clock and one or more circuit element clocks, so as to maintain consistency in the execution of the processing events relative to the determined system clock.

    摘要翻译: 使用基于软件的开发工具来模拟包括多个集成电路或其他电路元件的电子系统的操作,所述开发工具提供用于同时模拟具有潜在不同的时钟速度,延迟或其他特性的多个电路元件的通用框架。 在基于软件的开发工具中提供的一个或多个接口允许与一个或多个电路元件相关联的处理事件的注册。 基于软件的开发工具进一步操作以确定用于给定模拟的系统时钟,并且以考虑到系统时钟与一个或多个电路元件时钟之间的差异的方式调度相关联的处理事件的执行,以便 以保持处理事件相对于确定的系统时钟的执行的一致性。