Methodology and tools for tabled-based protocol specification and model generation
    2.
    发明授权
    Methodology and tools for tabled-based protocol specification and model generation 有权
    基于twitter的协议规范和模型生成的方法和工具

    公开(公告)号:US08443337B2

    公开(公告)日:2013-05-14

    申请号:US12075390

    申请日:2008-03-11

    IPC分类号: G06F9/44

    CPC分类号: H04L69/06

    摘要: In one embodiment, the present invention includes a method for associating and storing a code fragment for each cell of a table for a protocol specification in a semantic mapping corresponding to the table, and automatically generating a formal model for the protocol specification using the table and the semantic mapping. Other embodiments are described and claimed.

    摘要翻译: 在一个实施例中,本发明包括一种方法,用于将对于表的语义映射中的协议规范的表的每个小区的代码片段进行关联和存储,并且使用该表自动生成用于协议规范的形式模型;以及 语义映射。 描述和要求保护其他实施例。

    Methodology and tools for table-based protocol specification and model generation
    3.
    发明申请
    Methodology and tools for table-based protocol specification and model generation 有权
    基于表的协议规范和模型生成的方法和工具

    公开(公告)号:US20090235228A1

    公开(公告)日:2009-09-17

    申请号:US12075390

    申请日:2008-03-11

    IPC分类号: G06F9/44

    CPC分类号: H04L69/06

    摘要: In one embodiment, the present invention includes a method for associating and storing a code fragment for each cell of a table for a protocol specification in a semantic mapping corresponding to the table, and automatically generating a formal model for the protocol specification using the table and the semantic mapping. Other embodiments are described and claimed.

    摘要翻译: 在一个实施例中,本发明包括一种方法,用于将对于表的语义映射中的协议规范的表的每个小区的代码片段进行关联和存储,并且使用该表自动生成用于协议规范的形式模型;以及 语义映射。 描述和要求保护其他实施例。

    Optimizing concurrent accesses in a directory-based coherency protocol
    7.
    发明授权
    Optimizing concurrent accesses in a directory-based coherency protocol 有权
    在基于目录的一致性协议中优化并发访问

    公开(公告)号:US08190820B2

    公开(公告)日:2012-05-29

    申请号:US12157792

    申请日:2008-06-13

    IPC分类号: G06F12/08 G06F13/14

    CPC分类号: G06F12/0828

    摘要: In one embodiment, the present invention includes a directory to aid in maintaining control of a cache coherency protocol. The directory can be coupled to multiple caching agents via an interconnect, and be configured to store a entries associated with cache lines. The directory also includes logic to determine a time delay before the directory can send a concurrent snoop request. Other embodiments are described and claimed.

    摘要翻译: 在一个实施例中,本发明包括一个目录,以帮助维护高速缓存一致性协议的控制。 该目录可以通过互连耦合到多个缓存代理,并且被配置为存储与高速缓存行相关联的条目。 该目录还包括在目录可以发送并发侦听请求之前确定时间延迟的逻辑。 描述和要求保护其他实施例。

    Optimizing concurrent accesses in a directory-based coherency protocol
    8.
    发明申请
    Optimizing concurrent accesses in a directory-based coherency protocol 有权
    在基于目录的一致性协议中优化并发访问

    公开(公告)号:US20090313435A1

    公开(公告)日:2009-12-17

    申请号:US12157792

    申请日:2008-06-13

    IPC分类号: G06F12/08

    CPC分类号: G06F12/0828

    摘要: In one embodiment, the present invention includes a directory to aid in maintaining control of a cache coherency protocol. The directory can be coupled to multiple caching agents via an interconnect, and be configured to store a entries associated with cache lines. The directory also includes logic to determine a time delay before the directory can send a concurrent snoop request. Other embodiments are described and claimed.

    摘要翻译: 在一个实施例中,本发明包括一个目录,以帮助维护高速缓存一致性协议的控制。 该目录可以通过互连耦合到多个缓存代理,并且被配置为存储与高速缓存行相关联的条目。 该目录还包括在目录可以发送并发侦听请求之前确定时间延迟的逻辑。 描述和要求保护其他实施例。

    FAIRNESS MECHANISM FOR STARVATION PREVENTION IN DIRECTORY-BASED CACHE COHERENCE PROTOCOLS
    9.
    发明申请
    FAIRNESS MECHANISM FOR STARVATION PREVENTION IN DIRECTORY-BASED CACHE COHERENCE PROTOCOLS 有权
    基于目录的快速缓存协议中的预防机制预防机制

    公开(公告)号:US20100250861A1

    公开(公告)日:2010-09-30

    申请号:US12415929

    申请日:2009-03-31

    IPC分类号: G06F12/08

    CPC分类号: G06F12/0828

    摘要: Methods and apparatus relating to a fairness mechanism for starvation prevention in directory-based cache coherence protocols are described. In one embodiment, negatively-acknowledged (nack'ed) requests from a home agent may be tracked (e.g., using distributed linked-lists). In turn, the tracked requests may be served in a fair order. Other embodiments are also disclosed.

    摘要翻译: 描述了与基于目录的高速缓存一致性协议中的挨饿预防公平机制有关的方法和设备。 在一个实施例中,可以跟踪来自归属代理的否定确认(nacked)请求(例如,使用分布式链表)。 反过来,跟踪的请求可以以公平的顺序提供。 还公开了其他实施例。

    INTERCONNECT ARCHITECTURAL STATE COVERAGE MEASUREMENT METHODOLOGY
    10.
    发明申请
    INTERCONNECT ARCHITECTURAL STATE COVERAGE MEASUREMENT METHODOLOGY 审中-公开
    互连结构状态覆盖测量方法

    公开(公告)号:US20090171647A1

    公开(公告)日:2009-07-02

    申请号:US11965158

    申请日:2007-12-27

    IPC分类号: G06F17/30 G06F9/00

    CPC分类号: G06F17/5022

    摘要: A method and apparatus for ensuring efficient validation coverage of an architecture, such as protocol or interconnect architecture, is herein described. A coverage space of states for an architecture is generated and stored in a database. During simulation, states of the coverage space encountered are marked. From this, the states encountered and not encountered may be determined. Based on the states not encountered, a targeted test suite is developed to target at least some of the states not encountered during previous simulation. This feedback loop from simulation to refining of a test suite based on states of a coverage space not encountered during simulation may be recursively repeated until adequate validation, i.e. an adequate confidence level of validation, of the coverage space is achieved.

    摘要翻译: 这里描述了用于确保架构(例如协议或互连体系结构)的有效验证覆盖的方法和装置。 生成体系结构的状态的覆盖空间并存储在数据库中。 在仿真期间,遇到的覆盖空间的状态被标记。 由此可以确定遇到和未遇到的状态。 基于未遇到的状态,开发了一个目标测试套件,目标是在以前的模拟过程中至少有一些状态。 基于模拟期间未遇到的覆盖空间的状态,从仿真到精简测试套件的反馈循环可以递归地重复,直到实现覆盖空间的充分验证,即验证的充分置信水平为止。