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    Direct Memory Access Transfer Completion Notification
    1.
    发明申请
    Direct Memory Access Transfer Completion Notification 失效
    直接内存访问传输完成通知

    公开(公告)号：US20080307121A1

    公开(公告)日：2008-12-11

    申请号：US11758167

    申请日：2007-06-05

    申请人： Dong Chen ,  Mark E. Giampapa ,  Philip Heidelberger ,  Sameer Kumar ,  Jeffrey J. Parker ,  Burkhard D. Steinmacher-Burow ,  Pavlos Vranas

    发明人： Dong Chen ,  Mark E. Giampapa ,  Philip Heidelberger ,  Sameer Kumar ,  Jeffrey J. Parker ,  Burkhard D. Steinmacher-Burow ,  Pavlos Vranas

    IPC分类号： G06F13/28

    CPC分类号： G06F13/28

    摘要： Methods, compute nodes, and computer program products are provided for direct memory access (‘DMA’) transfer completion notification. Embodiments include determining, by an origin DMA engine on an origin compute node, whether a data descriptor for an application message to be sent to a target compute node is currently in an injection first-in-first-out (‘FIFO’) buffer in dependence upon a sequence number previously associated with the data descriptor, the total number of descriptors currently in the injection FIFO buffer, and the current sequence number for the newest data descriptor stored in the injection FIFO buffer; and notifying a processor core on the origin DMA engine that the message has been sent if the data descriptor for the message is not currently in the injection FIFO buffer.

    摘要翻译： 提供方法，计算节点和计算机程序产品用于直接内存访问（“DMA”）传输完成通知。 实施例包括通过原始计算节点上的原始DMA引擎确定要发送到目标计算节点的应用消息的数据描述符当前是否处于先进先出先入先出（FIFO）缓冲器 依赖于先前与数据描述符相关联的序列号，当前在注入FIFO缓冲器中的描述符的总数以及存储在注入FIFO缓冲器中的最新数据描述符的当前序列号; 并且如果消息的数据描述符当前不在注入FIFO缓冲器中，则通知源DMA引擎上的处理器核心消息已被发送。

    Direct memory access transfer completion notification
    2.
    发明授权
    Direct memory access transfer completion notification 失效
    直接内存访问传输完成通知

    公开(公告)号：US07765337B2

    公开(公告)日：2010-07-27

    申请号：US11758167

    申请日：2007-06-05

    申请人： Dong Chen ,  Mark E. Giampapa ,  Philip Heidelberger ,  Sameer Kumar ,  Jeffrey J. Parker ,  Burkhard D. Steinmacher-Burow ,  Pavlos Vranas

    发明人： Dong Chen ,  Mark E. Giampapa ,  Philip Heidelberger ,  Sameer Kumar ,  Jeffrey J. Parker ,  Burkhard D. Steinmacher-Burow ,  Pavlos Vranas

    IPC分类号： G06F13/28 ,  G06F3/00 ,  G06F13/00

    CPC分类号： G06F13/28

    摘要： Methods, compute nodes, and computer program products are provided for direct memory access (‘DMA’) transfer completion notification. Embodiments include determining, by an origin DMA engine on an origin compute node, whether a data descriptor for an application message to be sent to a target compute node is currently in an injection first-in-first-out (‘FIFO’) buffer in dependence upon a sequence number previously associated with the data descriptor, the total number of descriptors currently in the injection FIFO buffer, and the current sequence number for the newest data descriptor stored in the injection FIFO buffer; and notifying a processor core on the origin DMA engine that the message has been sent if the data descriptor for the message is not currently in the injection FIFO buffer.

    摘要翻译： 提供方法，计算节点和计算机程序产品用于直接内存访问（“DMA”）传输完成通知。 实施例包括通过原始计算节点上的原始DMA引擎确定要发送到目标计算节点的应用消息的数据描述符当前是否处于先进先出先入先出（FIFO）缓冲器 依赖于先前与数据描述符相关联的序列号，当前在注入FIFO缓冲器中的描述符的总数以及存储在注入FIFO缓冲器中的最新数据描述符的当前序列号; 并且如果消息的数据描述符当前不在注入FIFO缓冲器中，则通知源DMA引擎上的处理器核心消息已被发送。

    Collective network for computer structures
    5.
    发明授权
    Collective network for computer structures 有权
    计算机结构集体网络

    公开(公告)号：US08001280B2

    公开(公告)日：2011-08-16

    申请号：US11572372

    申请日：2005-07-18

    申请人： Matthias A. Blumrich ,  Paul W. Coteus ,  Dong Chen ,  Alan Gara ,  Mark E. Giampapa ,  Philip Heidelberger ,  Dirk Hoenicke ,  Todd E. Takken ,  Burkhard D. Steinmacher-Burow ,  Pavlos M. Vranas

    发明人： Matthias A. Blumrich ,  Paul W. Coteus ,  Dong Chen ,  Alan Gara ,  Mark E. Giampapa ,  Philip Heidelberger ,  Dirk Hoenicke ,  Todd E. Takken ,  Burkhard D. Steinmacher-Burow ,  Pavlos M. Vranas

    IPC分类号： G06F15/16

    CPC分类号： G06F15/17381 ,  H04L1/1845 ,  H04L12/4641

    摘要： A system and method for enabling high-speed, low-latency global collective communications among interconnected processing nodes. The global collective network optimally enables collective reduction operations to be performed during parallel algorithm operations executing in a computer structure having a plurality of the interconnected processing nodes. Router devices ate included that interconnect the nodes of the network via links to facilitate performance of low-latency global processing operations at nodes of the virtual network and class structures. The global collective network may be configured to provide global barrier and interrupt functionality in asynchronous or synchronized manner. When implemented in a massively-parallel supercomputing structure, the global collective network is physically and logically partitionable according to needs of a processing algorithm.

    摘要翻译： 一种用于实现互连处理节点之间的高速，低延迟全局集体通信的系统和方法。 全局集体网络最优地使得能够在具有多个互连处理节点的计算机结构中执行并行算法操作期间执行集体缩减操作。 路由器设备包括通过链路互连网络的节点，以便于在虚拟网络和类结构的节点处执行低延迟全局处理操作。 全局集体网络可以被配置为以异步或同步方式提供全局屏障和中断功能。 当在大规模并行超级计算结构中实现时，全局集体网络根据处理算法的需要在物理上和逻辑上可分割。

    Method for prefetching non-contiguous data structures
    7.
    发明授权
    Method for prefetching non-contiguous data structures 失效
    预取非连续数据结构的方法

    公开(公告)号：US07529895B2

    公开(公告)日：2009-05-05

    申请号：US11617276

    申请日：2006-12-28

    申请人： Matthias A. Blumrich ,  Dong Chen ,  Paul W. Coteus ,  Alan G. Gara ,  Mark E. Giampapa ,  Philip Heidelberger ,  Dirk Hoenicke ,  Martin Ohmacht ,  Burkhard D. Steinmacher-Burow ,  Todd E. Takken ,  Pavlos M. Vranas

    发明人： Matthias A. Blumrich ,  Dong Chen ,  Paul W. Coteus ,  Alan G. Gara ,  Mark E. Giampapa ,  Philip Heidelberger ,  Dirk Hoenicke ,  Martin Ohmacht ,  Burkhard D. Steinmacher-Burow ,  Todd E. Takken ,  Pavlos M. Vranas

    IPC分类号： G06F13/28

    CPC分类号： G06F12/0862 ,  G06F9/52 ,  G06F2212/6028

    摘要： A low latency memory system access is provided in association with a weakly-ordered multiprocessor system. Each processor in the multiprocessor shares resources, and each shared resource has an associated lock within a locking device that provides support for synchronization between the multiple processors in the multiprocessor and the orderly sharing of the resources. A processor only has permission to access a resource when it owns the lock associated with that resource, and an attempt by a processor to own a lock requires only a single load operation, rather than a traditional atomic load followed by store, such that the processor only performs a read operation and the hardware locking device performs a subsequent write operation rather than the processor. A simple perfecting for non-contiguous data structures is also disclosed. A memory line is redefined so that in addition to the normal physical memory data, every line includes a pointer that is large enough to point to any other line in the memory, wherein the pointers to determine which memory line to prefect rather than some other predictive algorithm. This enables hardware to effectively prefect memory access patterns that are non-contiguous, but repetitive.

    摘要翻译： 与弱有序的多处理器系统相关联地提供低延迟存储器系统访问。 多处理器中的每个处理器共享资源，并且每个共享资源在锁定设备内具有关联的锁，其提供对多处理器中的多个处理器之间的同步的支持以及资源的有序共享。 当处理器拥有与该资源相关联的锁定时，处理器仅具有访问资源的权限，并且处理器拥有锁的尝试仅需要单个加载操作，而不是传统的原子负载后跟存储，使得处理器 只执行读取操作，并且硬件锁定装置执行后续的写入操作而不是处理器。 还公开了用于非连续数据结构的简单完善。 存储器线被重新定义，使得除了正常的物理存储器数据之外，每行包括足够大的指针以指向存储器中的任何其他行，其中指针用于确定哪个存储器行被提供而不是一些其它预测 算法。 这使得硬件能够有效地预处理不连续但重复的存储器访问模式。

    Global interrupt and barrier networks
    8.
    发明授权
    Global interrupt and barrier networks 失效
    全局中断和屏障网络

    公开(公告)号：US07444385B2

    公开(公告)日：2008-10-28

    申请号：US10468997

    申请日：2002-02-25

    申请人： Matthias A. Blumrich ,  Dong Chen ,  Paul W. Coteus ,  Alan G. Gara ,  Mark E Giampapa ,  Philip Heidelberger ,  Gerard V. Kopcsay ,  Burkhard D. Steinmacher-Burow ,  Todd E. Takken

    发明人： Matthias A. Blumrich ,  Dong Chen ,  Paul W. Coteus ,  Alan G. Gara ,  Mark E Giampapa ,  Philip Heidelberger ,  Gerard V. Kopcsay ,  Burkhard D. Steinmacher-Burow ,  Todd E. Takken

    IPC分类号： G06F15/16

    CPC分类号： H05K7/20836 ,  F24F11/77 ,  G06F9/52 ,  G06F9/526 ,  G06F15/17381 ,  G06F17/142 ,  G09G5/008 ,  H04L7/0338

    摘要： A system and method for generating global asynchronous signals in a computing structure. Particularly, a global interrupt and barrier network is implemented that implements logic for generating global interrupt and barrier signals for controlling global asynchronous operations performed by processing elements at selected processing nodes of a computing structure in accordance with a processing algorithm; and includes the physical interconnecting of the processing nodes for communicating the global interrupt and barrier signals to the elements via low-latency paths. The global asynchronous signals respectively initiate interrupt and barrier operations at the processing nodes at times selected for optimizing performance of the processing algorithms. In one embodiment, the global interrupt and barrier network is implemented in a scalable, massively parallel supercomputing device structure comprising a plurality of processing nodes interconnected by multiple independent networks, with each node including one or more processing elements for performing computation or communication activity as required when performing parallel algorithm operations. One multiple independent network includes a global tree network for enabling high-speed global tree communications among global tree network nodes or sub-trees thereof. The global interrupt and barrier network may operate in parallel with the global tree network for providing global asynchronous sideband signals.

    摘要翻译： 一种用于在计算结构中产生全局异步信号的系统和方法。 特别地，实现了全局中断和屏障网络，其实现用于根据处理算法产生用于控制由计算结构的选定处理节点处理元件执行的全局异步操作的全局中断和屏障信号的逻辑; 并且包括用于经由低延迟路径将全局中断和屏障信号传送到元件的处理节点的物理互连。 全局异步信号分别在处理节点处启动中断和屏障操作，这些时间被选择用于优化处理算法的性能。 在一个实施例中，全局中断和屏障网络在可扩展的大规模并行超级计算设备结构中实现，该结构包括由多个独立网络互连的多个处理节点，每个节点包括用于根据需要执行计算或通信活动的一个或多个处理元件 当执行并行算法操作时。 一个多个独立网络包括全局树网络，用于在全球树网络节点或其子树之间实现高速全局树通信。 全局中断和屏障网络可以与全局树网络并行操作，以提供全局异步边带信号。

    Global tree network for computing structures enabling global processing operations
    10.
    发明授权
    Global tree network for computing structures enabling global processing operations 失效
    用于计算结构的全局树网络，实现全球处理操作

    公开(公告)号：US07650434B2

    公开(公告)日：2010-01-19

    申请号：US10469000

    申请日：2002-02-25

    申请人： Matthias A. Blumrich ,  Dong Chen ,  Paul W. Coteus ,  Alan G. Gara ,  Mark E. Giampapa ,  Philip Heidelberger ,  Dirk Hoenicke ,  Burkhard D. Steinmacher-Burow ,  Todd E. Takken ,  Pavlos M. Vranas

    发明人： Matthias A. Blumrich ,  Dong Chen ,  Paul W. Coteus ,  Alan G. Gara ,  Mark E. Giampapa ,  Philip Heidelberger ,  Dirk Hoenicke ,  Burkhard D. Steinmacher-Burow ,  Todd E. Takken ,  Pavlos M. Vranas

    IPC分类号： G06F15/16

    CPC分类号： G06F15/17337

    摘要： A system and method for enabling high-speed, low-latency global tree network communications among processing nodes interconnected according to a tree network structure. The global tree network enables collective reduction operations to be performed during parallel algorithm operations executing in a computer structure having a plurality of the interconnected processing nodes. Router devices are included that interconnect the nodes of the tree via links to facilitate performance of low-latency global processing operations at nodes of the virtual tree and sub-tree structures. The global operations performed include one or more of: broadcast operations downstream from a root node to leaf nodes of a virtual tree, reduction operations upstream from leaf nodes to the root node in the virtual tree, and point-to-point message passing from any node to the root node. The global tree network is configurable to provide global barrier and interrupt functionality in asynchronous or synchronized manner, and, is physically and logically partitionable.

    摘要翻译： 一种用于根据树网络结构互连的处理节点之间实现高速，低延迟的全局树网络通信的系统和方法。 全局树网络使得能够在具有多个互连的处理节点的计算机结构中执行并行算法操作期间执行集合缩减操作。 包括通过链路互连树节点的路由器设备，以便于在虚拟树和子树结构的节点处执行低延迟全局处理操作。 执行的全局操作包括以下一个或多个：从根节点向下游到虚拟树的叶节点的广播操作，从叶节点向上到叶节点到虚拟树中的根节点的减少操作，以及从任何 节点到根节点。 全局树网络可配置为以异步或同步方式提供全局屏障和中断功能，并且在物理和逻辑上可分区。