公开(公告)号：US20160043977A1

公开(公告)日：2016-02-11

申请号：US14455782

申请日：2014-08-08

Applicant: Oracle International Corporation

Inventor： Herbert Dewitt Schwetman, JR. ,  Pranay Koka ,  Arslan Zulfiqar

IPC: H04L12/58 ,  G06F12/12 ,  G06F3/06 ,  H04L29/08

CPC classification number: H04L51/12 ,  G06F3/0608 ,  G06F3/0641 ,  G06F3/067 ,  G06F12/0875 ,  G06F12/121 ,  H04L67/2842 ,  H04L67/2852

Abstract: A method for data deduplication during execution of an application on a plurality of computing nodes, including: generating, by a first processor in a first computing node executing the application, a first message to process application data owned by a second computing node executing the application; receiving, by a first network interface (NI) of the first computing node, the first message; extracting, by the first NI, a first key from the first message; determining, by the first NI, the first key is not a duplicate; and placing, by the first NI and in response to the first key not being a duplicate, the first message on a network connecting the first computing node to the second computing node.

Abstract translation: 一种用于在多个计算节点上执行应用程序期间进行重复数据删除的方法，包括：由执行应用程序的第一计算节点中的第一处理器生成第一消息以处理由执行应用程序的第二计算节点拥有的应用程序数据 ; 通过第一计算节点的第一网络接口（NI）接收第一消息; 由第一NI提取第一个消息中的第一个密钥; 由第一个NI确定第一个密钥不是重复的; 以及将所述第一计算节点连接到所述第二计算节点的所述第一消息，并且响应于所述第一密钥不是副本，将所述第一消息放置在所述第一计算节点上。

公开(公告)号：US20140133861A1

公开(公告)日：2014-05-15

申请号：US13648140

申请日：2012-10-09

Applicant: Oracle International Corporation

Inventor： Arslan Zulfiqar ,  Pranay Koka ,  Herbert D. Schwetman, JR.

IPC: H04J14/02

CPC classification number: H04J14/0257 ,  H04J14/0256 ,  H04J14/0273 ,  H04J14/0275 ,  H04J14/0278 ,  H04J14/0284

Abstract: In a multi-chip module (MCM), integrated circuits are coupled by optical waveguides that convey optical signals. The optical waveguides provide dedicated point-to-point optical links between all pairs of the integrated circuits. Moreover, for a given point-to-point optical link between a given pair of integrated circuits, other integrated circuits in the integrated circuits steal access on the given point-to-point optical link when communicating information to one of the given pair of integrated circuits so that the given point-to-point optical link is shared by more than the given pair of integrated circuits. Furthermore, the integrated circuits recover errors in messages in the optical signals corrupted by collisions on the given point-to-point optical link using erasure coding. In this way, the MCM may provide an optical network with increased bandwidth relative to a point-to-point optical network.

Abstract translation: 在多芯片模块（MCM）中，集成电路通过传送光信号的光波导耦合。 光波导在所有集成电路对之间提供专用的点对点光学链路。 此外，对于给定的一对集成电路之间的给定的点对点光链路，集成电路中的其他集成电路在将信息传送到给定的一对集成电路之一时，在给定的点对点光链路上窃取访问 使得给定的点对点光链路被多于给定的集成电路对共享。 此外，集成电路使用擦除编码来恢复在给定的点对点光链路上的冲突损坏的光信号中的消息中的错误。 以这种方式，MCM可以提供相对于点对点光网络具有增加的带宽的光网络。

公开(公告)号：US09213649B2

公开(公告)日：2015-12-15

申请号：US13625502

申请日：2012-09-24

Applicant: Oracle International Corporation

Inventor： Pranay Koka ,  David A. Munday ,  Michael O. McCracken ,  Herbert D. Schwetman, Jr.

IPC: G06F12/08 ,  G06F12/10

CPC classification number: G06F12/1009 ,  G06F12/1072 ,  G06F2212/682

Abstract: The disclosed embodiments provide a system that performs distributed page-table lookups in a shared-memory multiprocessor system with two or more nodes, where each of these nodes includes a directory controller that manages a distinct portion of the system's address space. During operation, a first node receives a request for a page-table entry that is located at a physical address that is managed by the first node. The first node accesses its directory controller to retrieve the page-table entry, and then uses the page-table entry to calculate the physical address for a subsequent page-table entry. The first node determines the home node (e.g., the managing node) for this calculated physical address, and sends a request for the subsequent page-table entry to that home node.

Abstract translation: 所公开的实施例提供了一种在具有两个或更多个节点的共享存储器多处理器系统中执行分布式页表查找的系统，其中这些节点中的每一个包括管理系统地址空间的不同部分的目录控制器。 在操作期间，第一节点接收对位于由第一节点管理的物理地址的页表条目的请求。 第一个节点访问其目录控制器以检索页表条目，然后使用页表条目计算后续页表条目的物理地址。 第一节点确定该计算出的物理地址的归属节点（例如，管理节点），并且向该家庭节点发送对后续页表条目的请求。

公开(公告)号：US08909051B2

公开(公告)日：2014-12-09

申请号：US13648140

申请日：2012-10-09

Applicant: Oracle International Corporation

Inventor： Arslan Zulfiqar ,  Pranay Koka ,  Herbert D. Schwetman, Jr.

IPC: H04J14/02 ,  H04B10/12 ,  H04B10/00 ,  G02B6/12

CPC classification number: H04J14/0257 ,  H04J14/0256 ,  H04J14/0273 ,  H04J14/0275 ,  H04J14/0278 ,  H04J14/0284

Abstract: In a multi-chip module (MCM), integrated circuits are coupled by optical waveguides that convey optical signals. The optical waveguides provide dedicated point-to-point optical links between all pairs of the integrated circuits. Moreover, for a given point-to-point optical link between a given pair of integrated circuits, other integrated circuits in the integrated circuits steal access on the given point-to-point optical link when communicating information to one of the given pair of integrated circuits so that the given point-to-point optical link is shared by more than the given pair of integrated circuits. Furthermore, the integrated circuits recover errors in messages in the optical signals corrupted by collisions on the given point-to-point optical link using erasure coding. In this way, the MCM may provide an optical network with increased bandwidth relative to a point-to-point optical network.

Abstract translation: 在多芯片模块（MCM）中，集成电路通过传送光信号的光波导耦合。 光波导在所有集成电路对之间提供专用的点对点光学链路。 此外，对于给定的一对集成电路之间的给定的点对点光链路，集成电路中的其他集成电路在将信息传送到给定的一对集成电路之一时，在给定的点对点光链路上窃取访问 使得给定的点对点光链路被多于给定的集成电路对共享。 此外，集成电路使用擦除编码来恢复在给定的点对点光链路上的冲突损坏的光信号中的消息中的错误。 以这种方式，MCM可以提供相对于点对点光网络具有增加的带宽的光网络。

公开(公告)号：US09535842B2

公开(公告)日：2017-01-03

申请号：US14472105

申请日：2014-08-28

Applicant: Oracle International Corporation

Inventor： Herbert D. Schwetman, Jr. ,  Mohammad Arslan Zulfiqar ,  Pranay Koka

IPC: G06F12/08 ,  G06F13/16 ,  H04L29/06 ,  G06F12/10

CPC classification number: G06F12/0862 ,  G06F12/0813 ,  G06F12/0842 ,  G06F12/1027 ,  G06F13/1657 ,  G06F13/1663 ,  G06F2212/1024 ,  G06F2212/602 ,  G06F2212/603 ,  H04L67/2847 ,  H04L69/22

Abstract: Each computing node of a distributed computing system may implement a hardware mechanism at the network interface for message driven prefetching of application data. For example, a parallel data-intensive application that employs function shipping may distribute respective portions of a large data set to main memory on multiple computing nodes. The application may send messages to one of the computing nodes referencing data that is stored locally on the node. For each received message, the network interface on the recipient node may extract the reference, initiate the prefetching of referenced data into a local cache (e.g., an LLC), and then store the message for subsequent interpretation and processing by a local processor core. When the processor core retrieves a stored message for processing, the referenced data may already be in the LLC, avoiding a CPU stall while retrieving it from memory. The hardware mechanism may be configured via software.

Abstract translation: 分布式计算系统的每个计算节点可以在网络接口处实现用于消息驱动预取应用数据的硬件机制。 例如，采用功能运输的并行数据密集型应用程序可以将大数据集的各个部分分配到多个计算节点上的主存储器。 应用程序可以向参考在本地节点上存储的数据的计算节点之一发送消息。 对于每个接收到的消息，接收方节点上的网络接口可以提取参考，发起将参考数据预取到本地高速缓存（例如，LLC）中，然后存储该消息用于本地处理器核心的后续解释和处理。 当处理器核心检索存储的消息进行处理时，引用的数据可能已经在LLC中，从而在从存储器检索时停止CPU停止。 可以通过软件配置硬件机制。

公开(公告)号：US09020347B2

公开(公告)日：2015-04-28

申请号：US14021555

申请日：2013-09-09

Applicant: Oracle International Corporation

Inventor： Pranay Koka ,  Herbert D. Schwetman, Jr.

IPC: H04J14/00 ,  H04Q11/00

CPC classification number: H04Q11/00 ,  H04Q2213/1302 ,  H04Q2213/1304 ,  H04Q2213/13109

Abstract: A network is described in which a base optical point-to-point (P2P) network can be reconfigured to a target network topology. This reconfigurable architecture customizes the network topology for different classes of applications to maximize throughput. In particular, the network can function efficiently at high-radix and low-radix traffic patterns. This capability is obtained using configurable electrical circuit switches at each node in the network. These configurable electrical circuit switches can be set so that incoming packets are directly routed to a specified output (either a local destination or an outgoing optical link) without: delay, contention, or buffers. In this way, predefined network topologies can be configured with improved node-to-node bandwidths when compared to the original P2P network by leveraging unused optical links. Furthermore, because the electrical circuit switches can be reconfigured, the network topology can be dynamically reconfigured to suit applications or application phases.

Abstract translation: 描述了一种网络，其中可以将基本光点对点（P2P）网络重新配置为目标网络拓扑。 这种可重构架构为不同类别的应用定制网络拓扑，以最大限度地提高吞吐量。 特别地，网络可以以高基数和低基数业务模式有效地运行。 该功能通过网络中每个节点上的可配置电路交换机获得。 这些可配置的电路开关可以被设置为使得输入分组直接路由到指定的输出（本地目的地或输出光链路），而不会：延迟，争用或缓冲。 以这种方式，通过利用未使用的光链路，与原始P2P网络相比，可以配置具有改进的节点到节点带宽的预定义网络拓扑。 此外，由于可以重新配置电路交换机，因此可以动态地重新配置网络拓扑，以适应应用或应用阶段。

公开(公告)号：US08976802B2

公开(公告)日：2015-03-10

申请号：US13840085

申请日：2013-03-15

Applicant: Oracle International Corporation

Inventor： Pranay Koka ,  Herbert D. Schwetman, Jr. ,  Syed Ali Raza Jafri

IPC: H04L12/28 ,  H04L12/863

CPC classification number: H04L47/6205 ,  H04L47/6225 ,  H04L49/254 ,  H04L49/356

Abstract: An arbitration technique for determining mappings for a switch is described. During a given arbitration decision cycle, an arbitration mechanism maintains, until expiration, a set of mappings from a subset of the input ports to a subset of the output ports of the switch. This set of mappings was determined during an arbitration decision cycle up to K cycles preceding the given arbitration decision cycle. Because the set of mappings are maintained, it is easier for the arbitration mechanism to determine mappings from a remainder of the input ports to the remainder of the output ports without collisions.

Abstract translation: 描述了用于确定交换机的映射的仲裁技术。 在给定的仲裁决定周期期间，仲裁机制维持从输入端口的子集到交换机的输出端口的子集的映射集，直到到期为止。 在一个仲裁决定周期内，确定了一组映射，直到给定仲裁决定周期之前的K个周期。 因为维护了一组映射，所以仲裁机制更容易确定从输入端口的其余部分到没有冲突的其余输出端口的映射。

公开(公告)号：US20140269751A1

公开(公告)日：2014-09-18

申请号：US13840085

申请日：2013-03-15

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Pranay Koka ,  Herbert D. Schwetman, JR. ,  Syed Ali Raza Jafri

IPC: H04L12/863

CPC classification number: H04L47/6205 ,  H04L47/6225 ,  H04L49/254 ,  H04L49/356

Abstract: An arbitration technique for determining mappings for a switch is described. During a given arbitration decision cycle, an arbitration mechanism maintains, until expiration, a set of mappings from a subset of the input ports to a subset of the output ports of the switch. This set of mappings was determined during an arbitration decision cycle up to K cycles preceding the given arbitration decision cycle. Because the set of mappings are maintained, it is easier for the arbitration mechanism to determine mappings from a remainder of the input ports to the remainder of the output ports without collisions.

Abstract translation: 描述了用于确定交换机的映射的仲裁技术。 在给定的仲裁决定周期期间，仲裁机制维持从输入端口的子集到交换机的输出端口的子集的映射集，直到到期为止。 在一个仲裁决定周期内，确定了一组映射，直到给定仲裁决定周期之前的K个周期。 因为维护了一组映射，所以仲裁机制更容易确定从输入端口的其余部分到没有冲突的其余输出端口的映射。

公开(公告)号：US08627040B2

公开(公告)日：2014-01-07

申请号：US13731760

申请日：2012-12-31

Applicant: Oracle International Corporation

Inventor： Pranay Koka ,  Michael Oliver McCracken ,  Herbert Dewitt Schwetman, Jr. ,  Jan Lodewijk Bonebakker

IPC: G06F12/00

CPC classification number: G06F12/0246 ,  G06F12/08 ,  G06F12/0802 ,  G06F12/0866 ,  G06F12/10 ,  G06F13/28 ,  G06F2212/2022 ,  G06F2212/214

Abstract: A method for accessing a virtual memory of a processor using a processor-bus-connected flash storage module (PFSM) as a first paging device and a hard disk drive (HDD) as a second paging device, the method including: allocating a first address partition and a second address partition of a virtual memory for a software application of a processor to the first paging device and the second paging device, respectively, identifying a virtual memory page in the first paging device responsive to a page fault of the virtual memory triggered by the software application, sending a page access request to the PFSM for accessing the virtual memory page responsive to the page fault, and receiving the virtual memory page from the PFSM based on a command of the processor bus issued by the PFSM in conjunction with performing a flash memory access in the flash memory using a flash page address.

Abstract translation: 一种使用处理器总线连接的闪速存储模块（PFSM）作为第一寻呼装置和硬盘驱动器（HDD）作为第二寻呼装置访问处理器的虚拟存储器的方法，所述方法包括：分配第一地址 分区和用于处理器的软件应用的虚拟存储器的第二地址分区分别对第一寻呼设备和第二寻呼设备进行识别，以响应于虚拟存储器触发的页面错误来识别第一寻呼设备中的虚拟存储器页面 通过软件应用程序，响应于页面错误向PFSM发送访问虚拟存储器页面的页面访问请求，以及基于由PFSM发出的处理器总线的命令并结合执行的操作从PFSM接收虚拟存储器页面 使用闪存页地址在闪存中闪存存取。

公开(公告)号：US20130308944A1

公开(公告)日：2013-11-21

申请号：US13666521

申请日：2012-11-01

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： Herbert D. Schwetman, JR. ,  Michael O. McCracken ,  Pranay Koka

IPC: H04J14/00 ,  H04J14/02

CPC classification number: G02B6/12007 ,  G02B6/3544 ,  G02B6/43 ,  G02B2006/12085 ,  G02B2006/12145 ,  G02B2006/12164 ,  H04J14/0212 ,  H04Q11/0005 ,  H04Q2011/0052

Abstract: In a multi-chip module (MCM), optical waveguides in a first plane convey modulated optical signals among integrated circuits (which are sometimes referred to as ‘chips’). Moreover, an optical-butterfly switch, optically coupled to the optical waveguides, dynamically allocates communication bandwidth among the integrated circuits. This optical-butterfly switch includes optical components in the first plane and a second plane, and optical couplers that couple the modulated optical signals to and from the first plane and the second plane. In this way, the MCM communicates the modulated optical signals among the integrated circuits without optical-waveguide crossings in a given plane.

Abstract translation: 在多芯片模块（MCM）中，第一平面中的光波导在集成电路之间传送调制的光信号（有时称为“芯片”）。 此外，光耦合到光波导的光蝶形开关动态地分配集成电路之间的通信带宽。 该光蝶形开关包括第一平面中的光学部件和第二平面，以及将调制光信号耦合到第一平面和第二平面的光耦合器。 以这种方式，MCM在集成电路中通信调制的光信号，而在给定的平面内没有光波导交叉。