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1. 发明申请

US20110078410A1 EFFICIENT PIPELINING OF RDMA FOR COMMUNICATIONS 审中-公开
标题翻译： RDMA通信的有效管道
公开(公告)号：US20110078410A1
公开(公告)日：2011-03-31
申请号：US11457921
申请日：2006-07-17
申请人： Robert S. Blackmore , Rama K. Govindaraju , Peter H. Hochschild , Chulho Kim , Rajeev Sivaram , Richard R. Treumann , Hanhong Xue
发明人： Robert S. Blackmore , Rama K. Govindaraju , Peter H. Hochschild , Chulho Kim , Rajeev Sivaram , Richard R. Treumann , Hanhong Xue
IPC分类号： G06F12/00 , G06F15/76 , G06F9/02
CPC分类号： G06F15/17375
摘要： Disclosed are a method of and system for multiple party communications in a processing system including multiple processing subsystems. Each of the processing subsystems includes a central processing unit and one or more network adapters for connecting said each processing subsystem to the other processing subsystems. A multitude of nodes are established or created, and each of these nodes is associated with one of the processing subsystems. A first aspect of the invention involves pipelined communication using RDMA among three nodes, where the first node breaks up a large communication into multiple parts and sends these parts one after the other to the second node using RDMA, and the second node in turn absorbs and forwards each of these parts to a third node before all parts of the communication arrive from the first node.
摘要翻译：公开了一种包括多个处理子系统的处理系统中的多方通信的方法和系统。每个处理子系统包括中央处理单元和用于将所述每个处理子系统连接到其他处理子系统的一个或多个网络适配器。建立或创建多个节点，并且这些节点中的每一个都与处理子系统之一相关联。本发明的第一方面涉及在三个节点之间使用RDMA的流水线通信，其中第一节点将大型通信分解成多个部分，并且使用RDMA将这些部分一个接一个地发送到第二节点，并且第二节点依次吸收和在通信的所有部分从第一节点到达之前，将这些部分中的每一个转发到第三节点。

2. 发明申请

US20060075067A1 Remote direct memory access with striping over an unreliable datagram transport 审中-公开
标题翻译：远程直接存储器访问，具有条带化不可靠的数据报传输
公开(公告)号：US20060075067A1
公开(公告)日：2006-04-06
申请号：US11017359
申请日：2004-12-20
申请人： Robert Blackmore , Piyush Chaudhary , Jason Goscinski , Rama Govindaraju , Donald Grice , Peter Hochschild , John Houston , Chulho Kim , Steven Martin , Rajeev Sivaram , Hanhong Xue
发明人： Robert Blackmore , Piyush Chaudhary , Jason Goscinski , Rama Govindaraju , Donald Grice , Peter Hochschild , John Houston , Chulho Kim , Steven Martin , Rajeev Sivaram , Hanhong Xue
IPC分类号： G06F15/16
CPC分类号： H04L69/16 , G06F12/1081 , H04L69/166
摘要： In a multinode data processing system in which nodes exchange information over a network or through a switch, a structure and mechanism are provided which enables data packets to be sent and received in any order. Normally, if in-order transmission and receipt are required, then transmission over a single path is essential to insure proper reassembly. However, the present mechanism avoids this necessity and permits Remote Direct Memory Access (RDMA) operations to be carried out simultaneously over multiple paths. This provides a data striping mode of operation in which data transfers can be carried out much faster since packets of single or multiple RDMA messages can be portioned and transferred over several paths simultaneously, thus providing the ability to utilize the full system bandwidth that is available.
摘要翻译：在节点通过网络交换信息或通过交换机交换信息的多节点数据处理系统中，提供了能够以任何顺序发送和接收数据分组的结构和机制。通常，如果需要按顺序传输和接收，则通过单个路径的传输对于确保适当的重新组装是至关重要的。然而，本机制避免了这种必要性，并且允许在多个路径上同时执行远程直接存储器访问（RDMA）操作。这提供了数据条带化操作模式，其中数据传输可以执行得更快，因为单个或多个RDMA消息的分组可以同时分配和传输多个路径，从而提供利用可用的全部系统带宽的能力。

3. 发明授权

US08116210B2 System and program product to recover from node failure/recovery incidents in distributed systems in which notification does not occur 失效
标题翻译：系统和程序产品，用于在不发生通知的分布式系统中从节点故障/恢复事件中恢复
公开(公告)号：US08116210B2
公开(公告)日：2012-02-14
申请号：US12126371
申请日：2008-05-23
申请人： Robert S. Blackmore , Amy X. Chen , Scott D. Epter , Chulho Kim , Rajeev Sivaram
发明人： Robert S. Blackmore , Amy X. Chen , Scott D. Epter , Chulho Kim , Rajeev Sivaram
IPC分类号： G01R31/08 , G06F11/00
CPC分类号： B60R25/1003
摘要： Epoch numbers are maintained in a pair wise fashion at a plurality of communication endpoints to provide communication consistency and recovery from a range of failure conditions including total or partial node failure and subsequent recovery. Once an epoch state inconsistency is recognized, negotiation procedures provide an effective mechanism to reestablish valid communication links without the need to employ global variables which inherently possess greater transmission and overhead requirements needed to maintain communications. Renegotiation of recognizably valid epoch numbers occurs on a pair wise basis.
摘要翻译：在多个通信端点以成对方式保持时代号，以从包括全部或部分节点故障和随后恢复的一系列故障条件提供通信一致性和恢复。一旦识别出时代状态不一致，谈判程序就提供了有效的机制来重新建立有效的通信链路，而不需要使用固有地拥有维持通信所需的更大的传输和开销要求的全局变量。可识别的有效时代数的重新协商是以双重依据为基础进行的。

4. 发明授权

US08091092B2 Locally providing globally consistent information to communications layers 失效
标题翻译：本地向通信层提供全球一致的信息
公开(公告)号：US08091092B2
公开(公告)日：2012-01-03
申请号：US11848050
申请日：2007-08-30
申请人： Myung M. Bae , Paul D. DiNicola , Chulho Kim , Rajeev Sivaram
发明人： Myung M. Bae , Paul D. DiNicola , Chulho Kim , Rajeev Sivaram
IPC分类号： G06F9/44
CPC分类号： G06F9/542 , H04L69/32 , H04L69/324
摘要： Globally consistent information is locally provided to communications layers. Globally consistent information is stored in a Network Availability Matrix, which is locally accessible by a communications layer. If an event is detected, the communications layer is automatically notified by the Network Availability Matrix, and is able to use the information in the Network Availability Matrix to quickly take action.
摘要翻译：全球一致的信息在本地提供给通信层。全球一致的信息存储在可由通信层本地访问的网络可用性矩阵中。如果检测到事件，则通信层由网络可用性矩阵自动通知，并且能够使用网络可用性矩阵中的信息来快速采取行动。

5. 发明授权

US08056087B2 Effective use of a hardware barrier synchronization register for protocol synchronization 失效
标题翻译：有效使用硬件屏障同步寄存器进行协议同步
公开(公告)号：US08056087B2
公开(公告)日：2011-11-08
申请号：US11534891
申请日：2006-09-25
申请人： Piyush Chaudhary , Rama K. Govindaraju , Chulho Kim , Rajeev Sivaram , Hanhong Xue
发明人： Piyush Chaudhary , Rama K. Govindaraju , Chulho Kim , Rajeev Sivaram , Hanhong Xue
IPC分类号： G06F9/46
CPC分类号： G06F9/52 , G06F9/522
摘要： A barrier synchronization register, accessible to the nodes in a distributed data processing system, has portions thereof allotted to threads which are present in multiple groups. The barrier synchronization register portion allotted to a given thread has stored therein, over time, group identifier numbers. In this way the state space of a barrier synchronization register is shared over more than one group of process threads.
摘要翻译：分布式数据处理系统中的节点可访问的障碍同步寄存器，其部分分配给存在于多个组中的线程。分配给给定线程的屏障同步寄存器部分随时间存储在组标识符号中。以这种方式，屏障同步寄存器的状态空间在多于一组进程线程上共享。

6. 发明申请

US20070150904A1 Multi-threaded polling in a processing environment 审中-公开
标题翻译：在处理环境中进行多线程轮询
公开(公告)号：US20070150904A1
公开(公告)日：2007-06-28
申请号：US11273733
申请日：2005-11-15
申请人： Chulho Kim , Rajeev Sivaram
发明人： Chulho Kim , Rajeev Sivaram
IPC分类号： G06F9/46
CPC分类号： G06F9/4843
摘要： Processing within a multi-threaded processing environment is facilitated. A plurality of threads are employed to perform polling on a plurality of entities. The polling enables the concurrent driving of progress on the plurality of entities, as well as the detection of occurrence of a specified event across the plurality of entities and the termination of continued polling at the occurrence of this event.
摘要翻译：便于在多线程处理环境中进行处理。采用多个线程对多个实体进行轮询。轮询能够同时驱动多个实体上的进展，以及检测多个实体中的指定事件的发生以及在该事件发生时终止连续轮询。

7. 发明授权

US07774554B2 System and method for intelligent software-controlled cache injection 失效
标题翻译：用于智能软件控制缓存注入的系统和方法
公开(公告)号：US07774554B2
公开(公告)日：2010-08-10
申请号：US11676745
申请日：2007-02-20
申请人： Piyush Chaudhary , Rama K. Govindaraju , Jay Robert Herring , Peter Hochschild , Chulho Kim , Rajeev Sivaram , Hanhong Xue
发明人： Piyush Chaudhary , Rama K. Govindaraju , Jay Robert Herring , Peter Hochschild , Chulho Kim , Rajeev Sivaram , Hanhong Xue
IPC分类号： G06F12/00
CPC分类号： G06F12/0862 , G06F12/0817
摘要： A system and method to provide injection of important data directly into a processor's cache location when that processor has previously indicated interest in the data. The memory subsystem at a target processor will determine if the memory address of data to be written to a memory location associated with the target processor is found in a processor cache of the target processor. If it is determined that the memory address is found in a target processor's cache, the data will be directly written to that cache at the same time that the data is being provided to a location in main memory.
摘要翻译：当处理器先前已经对数据感兴趣时，提供将重要数据直接注入处理器的高速缓存位置的系统和方法。目标处理器上的存储器子系统将确定是否在目标处理器的处理器高速缓存中找到要写入到与目标处理器相关联的存储器位置的数据的存储器地址。如果确定在目标处理器的高速缓存中找到存储器地址，则在将数据提供给主存储器中的位置的同时，数据将被直接写入该高速缓存。

8. 发明授权

US07536468B2 Interface method, system, and program product for facilitating layering of a data communications protocol over an active message layer protocol 失效
标题翻译：接口方法，系统和程序产品，用于促进通过活动消息层协议分层数据通信协议
公开(公告)号：US07536468B2
公开(公告)日：2009-05-19
申请号：US10875471
申请日：2004-06-24
申请人： Robert S. Blackmore , Xin Chen , Scott D. Epter , Chulho Kim , Rajeev Sivaram , Hanhong Xue
发明人： Robert S. Blackmore , Xin Chen , Scott D. Epter , Chulho Kim , Rajeev Sivaram , Hanhong Xue
IPC分类号： G06F15/16 , H04L12/28
CPC分类号： H04L51/18 , H04L69/22
摘要： A protocol interface is provided for an active message protocol of a computing environment and a client process employing the active message protocol. The protocol interface includes an interface to a header handler function associated with the client process. The interface to the header handler function has parameters to be passed by and a parameter to be returned to the active message protocol when processing a message received through the active message protocol. The parameters to be passed include current message state information and current message type information for the received message. These parameters facilitate message-specific decisions by the header handler function about processing data of the message by the active message protocol. The parameter to be returned to the active message protocol instructs the active message protocol how to process the received message other than just where to store the message.
摘要翻译：为计算环境的活动消息协议和采用活动消息协议的客户端进程提供协议接口。协议接口包括与客户端进程相关联的报头处理函数的接口。在处理通过活动消息协议接收的消息时，头处理程序函数的接口具有要传递的参数和要返回到活动消息协议的参数。要传递的参数包括接收到的消息的当前消息状态信息和当前消息类型信息。这些参数有助于报头处理函数关于通过活动消息协议处理消息的数据的消息特定决定。要返回到活动消息协议的参数指示活动消息协议如何处理接收到的消息，而不仅仅是存储消息的位置。

9. 发明授权

US07454491B2 Method and system for efficiently transferring a self-defined non-contiguous message in a one-sided communication model 失效
标题翻译：用于在单面通信模型中有效传送自定义非连续消息的方法和系统
公开(公告)号：US07454491B2
公开(公告)日：2008-11-18
申请号：US10965597
申请日：2004-10-14
申请人： Robert S. Blackmore , Xin Amy Chen , Chulho Kim , Rajeev Sivaram , Richard R. Treumann , Hanhong Xue
发明人： Robert S. Blackmore , Xin Amy Chen , Chulho Kim , Rajeev Sivaram , Richard R. Treumann , Hanhong Xue
IPC分类号： G06F15/16
CPC分类号： H04L67/10 , H04L69/06 , H04L69/328
摘要： A method and system for transferring noncontiguous messages group including assembling a set of data into a series of transmission packets, packaging a description of the layout of the transmission packets into description packets and then places each description packet into a local buffer while maintaining a count of the number of description packets, transfers each description packet into a transmit buffer for transmission to at least one receiving node, identifies the data packets, and forwards each data packet to the transmit buffer for transmission to the at least one receiving node. The receiving node receives the transmission packets, identifies each packet as a description packet or data packet, places the description packets in a local buffer for storage until the description is complete, places each description packet into a user data buffer, stores data packets in a local queue until the description is complete, then transfers the data packets to the user buffer.
摘要翻译：一种用于传送不连续消息组的方法和系统，包括将一组数据组合成一系列传输分组，将传输分组的布局的描述打包成描述分组，然后将每个描述分组放置到本地缓冲器中，同时保持计数描述分组的数量将每个描述分组传送到用于发送到至少一个接收节点的发送缓冲器，识别数据分组，并将每个数据分组转发到发送缓冲器以传输到至少一个接收节点。接收节点接收传输分组，将每个分组标识为描述分组或数据分组，将描述分组置于本地缓冲区中进行存储，直到描述完成，将每个描述分组放入用户数据缓冲区，将数据分组存储在本地队列直到描述完成，然后将数据包传送到用户缓冲区。

10. 发明授权

US07379444B2 Method to recover from node failure/recovery incidents in distributed systems in which notification does not occur 失效
标题翻译：在不发生通知的分布式系统中从节点故障/恢复事件中恢复的方法
公开(公告)号：US07379444B2
公开(公告)日：2008-05-27
申请号：US10351823
申请日：2003-01-27
申请人： Robert S. Blackmore , Amy X. Chen , Scott D. Epter , Chulho Kim , Rajeev Sivaram
发明人： Robert S. Blackmore , Amy X. Chen , Scott D. Epter , Chulho Kim , Rajeev Sivaram
IPC分类号： H04L1/12 , H04L12/26
CPC分类号： H04L29/06 , H04L67/10 , H04L69/329 , H04L69/40
摘要： Epoch numbers are maintained in a pair wise fashion at a plurality of communication endpoints to provide communication consistency and recovery from a range of failure conditions including total or partial node failure and subsequent recovery. Once an epoch state inconsistency is recognized, negotiation procedures provide an effective mechanism to reestablish valid communication links without the need to employ global variables which inherently possess greater transmission and overhead requirements needed to maintain communications. Renegotiation of recognizably valid epoch numbers occurs on a pair wise basis.
摘要翻译：在多个通信端点以成对方式保持时代号，以从包括全部或部分节点故障和随后恢复的一系列故障条件提供通信一致性和恢复。一旦识别出时代状态不一致，谈判程序就提供了有效的机制来重新建立有效的通信链路，而不需要使用固有地拥有维持通信所需的更大的传输和开销要求的全局变量。可识别的有效时代数的重新协商是以双重依据为基础进行的。

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