Multicast traffic generation using hierarchical replication mechanisms for distributed switches
    92.
    发明授权
    Multicast traffic generation using hierarchical replication mechanisms for distributed switches 有权
    使用分布式交换机的分层复制机制的组播流量生成

    公开(公告)号:US08913620B2

    公开(公告)日:2014-12-16

    申请号:US13420203

    申请日:2012-03-14

    摘要: A distributed switch may include a hierarchy with one or more levels of surrogate sub-switches (and surrogate bridge elements) that enable the distributed switch to scale bandwidth based on the size of the membership of a multicast group. When a sub-switch receives a multicast data frame, it forwards the packet to one of the surrogate sub-switches. Each surrogate sub-switch may then forward the packet to another surrogate in a different hierarchical level or to a destination computing device. Because the surrogates may transmit the data frame in parallel using two or more connection interfaces, the bandwidth used to forward the multicast packet increases for each surrogate used.

    摘要翻译: 分布式交换机可以包括具有使得分布式交换机能够基于多播组的成员资格的大小来缩放带宽的代理子交换机(和代理桥元素)的一个或多个级别的层级。 当子交换机接收到组播数据帧时,它将数据包转发到其中一个代理子交换机。 然后,每个代理子交换机可以将分组转发到不同层级的另一个代理或转发到目的地计算设备。 由于代理可以使用两个或多个连接接口并行传输数据帧,所以用于转发组播数据包的带宽随着使用的每个代理而增加。

    Techniques for dynamically assigning jobs to processors in a cluster based on broadcast information
    95.
    发明授权
    Techniques for dynamically assigning jobs to processors in a cluster based on broadcast information 有权
    基于广播信息将作业动态地分配给集群中的处理器的技术

    公开(公告)号:US08122132B2

    公开(公告)日:2012-02-21

    申请号:US12336312

    申请日:2008-12-16

    IPC分类号: G06F13/00

    CPC分类号: G06F9/5088

    摘要: A technique for operating a high performance computing cluster (HPC) having multiple nodes (each of which include multiple processors) includes periodically broadcasting information, related to processor utilization and network utilization at each of the multiple nodes, from each of the multiple nodes to remaining ones of the multiple nodes. Respective local job tables maintained in each of the multiple nodes are updated based on the broadcast information. One or more threads are then moved from one or more of the multiple processors to a different one of the multiple processors (based on the broadcast information in the respective local job tables).

    摘要翻译: 用于操作具有多个节点(每个包括多个处理器)的高性能计算群集(HPC)的技术包括:从多个节点中的每个节点到多个节点周期性地广播与多个节点中的每个节点处的处理器利用和网络利用相关的信息 多个节点中的一个。 基于广播信息来更新维护在多个节点中的每个节点的相应的本地作业表。 然后,一个或多个线程从多个处理器中的一个或多个移动到多个处理器中的不同处理器(基于相应的本地作业表中的广播信息)。

    Multicasting Using a Multitiered Distributed Virtual Bridge Hierarchy
    97.
    发明申请
    Multicasting Using a Multitiered Distributed Virtual Bridge Hierarchy 有权
    使用多层分布式虚拟网桥层次结构进行组播

    公开(公告)号:US20110261815A1

    公开(公告)日:2011-10-27

    申请号:US12767481

    申请日:2010-04-26

    IPC分类号: H04L12/56

    CPC分类号: H04L12/4625 H04L45/16

    摘要: Systems and methods to multicast data frames are provided. A particular apparatus includes a plurality of computing nodes and a distributed virtual bridge. The distributed virtual bridge includes a plurality of bridge elements coupled to the plurality of computing nodes. The plurality of bridge elements are configured to forward a copy of a multicast data frame to the plurality of computing nodes using group member information associated with addresses of the plurality of server computers. A controlling bridge coupled to the plurality of bridge elements is configured to communicate the group member information to the plurality of bridge elements.

    摘要翻译: 提供了组播数据帧的系统和方法。 特定装置包括多个计算节点和分布式虚拟桥。 分布式虚拟桥包括耦合到多个计算节点的多个桥元件。 多个桥元件被配置为使用与多个服务器计算机的地址相关联的组成员信息将多播数据帧的副本转发到多个计算节点。 耦合到所述多个桥接元件的控制桥被配置为将所述组成员信息传递到所述多个桥接元件。

    Scheduler pipeline design for hierarchical link sharing
    99.
    发明授权
    Scheduler pipeline design for hierarchical link sharing 失效
    调度器管道设计用于分层链路共享

    公开(公告)号:US07929438B2

    公开(公告)日:2011-04-19

    申请号:US12175479

    申请日:2008-07-18

    IPC分类号: H04J1/16

    摘要: A pipeline configuration is described for use in network traffic management for the hardware scheduling of events arranged in a hierarchical linkage. The configuration reduces costs by minimizing the use of external SRAM memory devices. This results in some external memory devices being shared by different types of control blocks, such as flow queue control blocks, frame control blocks and hierarchy control blocks. Both SRAM and DRAM memory devices are used, depending on the content of the control block (Read-Modify-Write or ‘read’ only) at enqueue and dequeue, or Read-Modify-Write solely at dequeue. The scheduler utilizes time-based calendars and weighted fair queueing calendars in the egress calendar design. Control blocks that are accessed infrequently are stored in DRAM memory while those accessed frequently are stored in SRAM.

    摘要翻译: 描述了用于网络流量管理中的流水线配置,用于以分层链接排列的事件的硬件调度。 该配置通过最小化外部SRAM存储器件的使用来降低成本。 这导致一些外部存储器设备被不同类型的控制块共享,例如流队列控制块,帧控制块和层次控制块。 使用SRAM和DRAM存储器件,这取决于控制块的内容(仅读取 - 修改 - 写入或仅读取)在排队和出队,或仅读出 - 修改 - 写出。 调度器在出口日历设计中使用基于时间的日历和加权公平排队日历。 不频繁访问的控制块存储在DRAM存储器中,而频繁访问的控制块存储在SRAM中。

    Accessing an effective address and determining whether the effective address is associated with remotely coupled I/O adapters
    100.
    发明授权
    Accessing an effective address and determining whether the effective address is associated with remotely coupled I/O adapters 有权
    访问有效地址并确定有效地址是否与远程耦合的I / O适配器相关联

    公开(公告)号:US07844746B2

    公开(公告)日:2010-11-30

    申请号:US12024695

    申请日:2008-02-01

    IPC分类号: G06F3/12

    摘要: A heterogeneous processing element model is provided where I/O devices look and act like processors. In order to be treated like a processor, an I/O processing element, or other special purpose processing element, must follow some rules and have some characteristics of a processor, such as address translation, security, interrupt handling, and exception processing, for example. The heterogeneous processing element model abstracts an I/O device such that communication intended for the I/O device may be packetized and sent over a network. Thus, a virtualization platform may packetize communication intended for a remotely located I/O device and transmit the packetized communication over a distance, rather than having to make a call to a library, call a device driver, pin memory, and so forth.

    摘要翻译: 提供异构处理元件模型,其中I / O设备看起来像处理器一样操作。 为了像处理器一样处理I / O处理元件或其他专用处理元件,必须遵循一些规则并具有处理器的某些特性,例如地址转换,安全性,中断处理和异常处理,用于 例。 异构处理元件模型抽象出I / O设备,使得针对I / O设备的通信可以被分组并通过网络发送。 因此,虚拟化平台可以打包用于远程位置的I / O设备的通信,并且在一定距离上发送分组化的通信,而不是必须对库进行呼叫,调用设备驱动器,引脚存储器等。