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    • 2. 发明授权
    • Input-output module for operation in memory module socket and method for extending a memory interface for input-output operations
    • 用于在存储器模块插槽中操作的输入输出模块以及用于扩展用于输入 - 输出操作的存储器接口的方法
    • US08117369B2
    • 2012-02-14
    • US12986104
    • 2011-01-06
    • Satyanarayana NishtalaThomas Lee LyonDaniel Edward Lenoski
    • Satyanarayana NishtalaThomas Lee LyonDaniel Edward Lenoski
    • G06F13/00H05K7/10
    • G06F13/385G11C5/04
    • An I/O module configured to operate in a memory module socket and method for extending a memory interface are generally described herein. The I/O module may include a serial-presence detection (SPD) device to indicate that the I/O module is an I/O device and to indicate one or more functions associated with the I/O module. The I/O module may also include a serial data controller to communicate serial data in accordance with a predetermined communication technique with a configurable switch of a host system over preselected system management (SM) bus address lines and unused system clock signal lines of the memory module socket. The predetermined communication technique may include a peripheral component interconnect express (PCIe), a Serial Advanced Technology Attachment (SATA), a Serial Attached Small Computer System Interface (SAS), a universal-serial bus (USB) or a switched-fabric (InfiniBand) communication technique.
    • 配置为在存储器模块插座中操作的I / O模块和用于扩展存储器接口的方法一般在此描述。 I / O模块可以包括串行存在检测(SPD)设备,以指示I / O模块是I / O设备并且指示与I / O模块相关联的一个或多个功能。 I / O模块还可以包括串行数据控制器,以根据预定的通信技术,通过主机系统的可配置开关,通过预选的系统管理(SM)总线地址线和存储器的未使用的系统时钟信号线来传送串行数据 模块插座。 预定的通信技术可以包括外围组件互连快速(PCIe),串行高级技术附件(SATA),串行附属小型计算机系统接口(SAS),通用串行总线(USB)或交换结构(InfiniBand )通信技术。
    • 5. 发明授权
    • Method and apparatus for flow control in packet-switched computer system
    • 分组交换计算机系统中流控制的方法和装置
    • US5907485A
    • 1999-05-25
    • US414875
    • 1995-03-31
    • William C. Van LooZahir EbrahimSatyanarayana NishtalaKevin B. NormoyleLeslie KohnLouis F. Coffin, III
    • William C. Van LooZahir EbrahimSatyanarayana NishtalaKevin B. NormoyleLeslie KohnLouis F. Coffin, III
    • G06F9/46G06F13/24G05B15/00
    • G06F9/546G06F13/24
    • This invention describes a link-by-link flow control method for packet-switched uniprocessor and multiprocessor computer systems that maximizes system resource utilization and throughput, and minimizes system latency. The computer system comprises one or more master interfaces, one or more slave interfaces, and an interconnect system controller which provides dedicated transaction request queues for each master interface and controls the forwarding of transactions to each slave interface. The master interface keeps track of the number of requests in the dedicated queue in the system controller, and the system controller keeps track of the number of requests in each slave interface queue. Both the master interface, and system controller know the maximum capacity of the queue immediately downstream from it, and does not issue more transaction requests than what the downstream queue can accommodate. An acknowledgment from the downstream queue indicates to the sender that there is space in it for another transaction. Thus no system resources are wasted trying to send a request to a queue that is already full.
    • 本发明描述了一种用于分组交换单处理器和多处理器计算机系统的链路链路流控制方法,其使系统资源利用率和吞吐量最大化,并最小化系统等待时间。 计算机系统包括一个或多个主接口,一个或多个从接口和互连系统控制器,其为每个主接口提供专用事务请求队列,并且控制事务到每个从接口的转发。 主接口跟踪系统控制器中专用队列中的请求数,系统控制器跟踪每个从接口队列中的请求数。 主接口和系统控制器都知道其下游队列的最大容量,并且不会比下游队列可以容纳更多的事务请求。 来自下游队列的确认向发送方指示在其中存在另一个事务的空间。 因此,尝试将请求发送到已满的队列时,不会浪费任何系统资源。
    • 6. 发明授权
    • Transaction activation processor for controlling memory transaction
execution in a packet switched cache coherent multiprocessor system
    • 用于控制分组交换高速缓存一致多处理器系统中的存储器事务执行的事务激活处理器
    • US5655100A
    • 1997-08-05
    • US414772
    • 1995-03-31
    • Zahir EbrahimSatyanarayana NishtalaWilliam C. Van LooKevin NormoylePaul LoewensteinLouis F. Coffin, III
    • Zahir EbrahimSatyanarayana NishtalaWilliam C. Van LooKevin NormoylePaul LoewensteinLouis F. Coffin, III
    • G06F12/08
    • G06F12/0828G06F12/0822
    • A multiprocessor computer system has a multiplicity of sub-systems and a main memory coupled to a system controller. Some of the sub-systems are data processors, each having a respective cache memory that stores multiple blocks of data and a respective set of master cache tags (Etags), including one Etag for each data block stored by the cache memory. Each data processor includes an interface for sending memory transaction requests to the system controller and for receiving cache transaction requests from the system controller corresponding to memory transaction requests by other ones of the data processors. The system controller includes transaction activation logic for activating each said memory transaction request when it meets predefined activation criteria, and for blocking each said memory transaction request until the predefined activation criteria are met. An active transaction status table stores status data representing memory transaction requests that have been activated, including an address value for each activated transaction. The transaction activation logic includes comparator logic for comparing each memory transaction request with the active transaction status data for all activated memory transaction requests so as to detect whether activation of a particular memory transaction request would violate the predefined activation criteria. With certain exceptions concerning writeback transactions, an incoming transaction for accessing a data block that maps to the same cache line a pending, previously activated transaction, will be blocked until the pending transaction that maps to the same cache line is completed.
    • 多处理器计算机系统具有多个子系统和耦合到系统控制器的主存储器。 一些子系统是数据处理器,每个数据处理器具有存储多个数据块的相应高速缓存存储器以及相应的主缓存标签集(Etag),包括由高速缓冲存储器存储的每个数据块的一个Etag。 每个数据处理器包括一个接口,用于向系统控制器发送存储器事务请求,并接收来自系统控制器的高速缓存事务请求,对应于其他数据处理器的存储器事务请求。 系统控制器包括事务激活逻辑,用于当其满足预定义的激活准则时激活每个所述存储器事务请求,并且用于阻止每个所述存储器事务请求直到满足预定义的激活标准。 活动事务状态表存储表示已激活的存储器事务请求的状态数据,包括每个激活的事务的地址值。 事务激活逻辑包括比较器逻辑,用于将每个存储器事务请求与所有激活的存储器事务请求的活动事务状态数据进行比较,以便检测特定存储器事务请求的激活是否违反预定义的激活标准。 对于回写事务有一些例外,用于访问映射到相同高速缓存行的未决事务,先前激活的事务的数据块的传入事务将被阻止,直到映射到同一高速缓存行的挂起事务完成。
    • 10. 发明申请
    • SERVER POWER MANAGER AND METHOD FOR DYNAMICALLY MANAGING SERVER POWER CONSUMPTION
    • 服务器功率管理器和动态管理服务器功耗的方法
    • US20100235662A1
    • 2010-09-16
    • US12634367
    • 2009-12-09
    • Satyanarayana Nishtala
    • Satyanarayana Nishtala
    • G06F1/32G06F9/455G06F12/08
    • G06F1/3203G06F12/06G06F12/08
    • A server power manager and method for dynamic server power management are generally described herein. The server power manager is configured to implement one or more server management policies that identify target server power consumption and/or target functionality for the server system. The server power manager determines an amount of excess processing capability and/or an amount of excess physical memory based on the target server power consumption and the target functionality. The server power manager may transition a processor core to a lower-operational state when at least a predetermined amount of excess processing capability is determined while maintaining server system functionality. The server power manager may transition a memory module to a lower-operational state when at least a predetermined amount of excess physical memory is determined while maintaining the server system functionality.
    • 本文一般地描述用于动态服务器电源管理的服务器电源管理器和方法。 服务器电源管理器被配置为实现识别服务器系统的目标服务器功耗和/或目标功能的一个或多个服务器管理策略。 服务器电源管理器基于目标服务器功耗和目标功能来确定多余的处理能力和/或多余的物理存储器量。 当在保持服务器系统功能的同时确定至少预定量的多余处理能力时,服务器功率管理器可以将处理器核心转换到较低操作状态。 当在保持服务器系统功能的同时确定至少预定量的多余的物理存储器时,服务器电源管理器可以将存储器模块转换到较低的操作状态。