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1. 发明授权

US08031639B2 Efficient probabilistic duplicate packet detector in computer networks 有权
标题翻译：计算机网络中的高效概率重复数据包检测器
公开(公告)号：US08031639B2
公开(公告)日：2011-10-04
申请号：US12561669
申请日：2009-09-17
申请人： Carl A. Bender , Fu Chung Chang , Kevin J. Gildea , Rama K. Govindaraju , Jay R. Herring , Peter H. Hochschild , Richard A. Swetz
发明人： Carl A. Bender , Fu Chung Chang , Kevin J. Gildea , Rama K. Govindaraju , Jay R. Herring , Peter H. Hochschild , Richard A. Swetz
IPC分类号： H04L12/28 , H04L1/00 , H04L12/26 , G01R31/08 , G06F11/00 , G06F15/16 , G08C15/00 , G08C25/00 , H04J1/16 , H04J3/14
CPC分类号： H04L29/06 , H04L1/0057 , H04L1/0061 , H04L1/0079 , H04L69/326 , H04L2001/0092
摘要： In order to solve the problem of the detection of the arrival of duplicate data packets in an interconnected, multinode data processing system, each data packet is provided with a field of r bits that are randomly generated for each data packet. However, one of the packets is provided with a field that is computed from the other randomly generated field entries in a checksum computation which yields a selected nonzero checksum value. A running checksum at the receiver is used to determine whether or not, after the receipt of the specified number, k, of data packets, a duplicate packet has been received.
摘要翻译：为了解决在互连的多节点数据处理系统中检测到重复数据分组的问题的问题，每个数据分组被提供有为每个数据分组随机生成的r比特的字段。然而，其中一个分组被提供有一个字段，该字段是在产生选定的非零校验和值的校验和计算中的其他随机生成的字段条目中计算的。在接收机上运行的校验和用于确定在接收到数据包的指定数量k之后是否已经接收到重复分组。

2. 发明申请

US20100008251A1 EFFICIENT PROBABILISTIC DUPLICATE PACKET DETECTOR IN COMPUTER NETWORKS 有权
标题翻译：计算机网络中高效的可复用双重分组检测器
公开(公告)号：US20100008251A1
公开(公告)日：2010-01-14
申请号：US12561669
申请日：2009-09-17
申请人： Carl A. Bender , Fu Chung Chang , Kevin J. Gildea , Rama K. Govindaraju , Jay R. Herring , Peter H. Hochschild , Richard A. Swetz
发明人： Carl A. Bender , Fu Chung Chang , Kevin J. Gildea , Rama K. Govindaraju , Jay R. Herring , Peter H. Hochschild , Richard A. Swetz
IPC分类号： H04L12/26
CPC分类号： H04L29/06 , H04L1/0057 , H04L1/0061 , H04L1/0079 , H04L69/326 , H04L2001/0092
摘要： In order to solve the problem of the detection of the arrival of duplicate data packets in an interconnected, multinode data processing system, each data packet is provided with a field of r bits that are randomly generated for each data packet. However, one of the packets is provided with a field that is computed from the other randomly generated field entries in a checksum computation which yields a selected nonzero checksum value. A running checksum at the receiver is used to determine whether or not, after the receipt of the specified number, k, of data packets, a duplicate packet has been received.
摘要翻译：为了解决在互连的多节点数据处理系统中检测到重复数据分组的问题的问题，每个数据分组被提供有为每个数据分组随机生成的r比特的字段。然而，其中一个分组被提供有一个字段，该字段是在产生选定的非零校验和值的校验和计算中的其他随机生成的字段条目中计算的。在接收机上运行的校验和用于确定在接收到数据包的指定数量k之后是否已经接收到重复分组。

3. 发明授权

US07813369B2 Half RDMA and half FIFO operations 失效
标题翻译：半RDMA和半FIFO操作
公开(公告)号：US07813369B2
公开(公告)日：2010-10-12
申请号：US11017406
申请日：2004-12-20
申请人： Robert S. Blackmore , Fu Chung Chang , Piyush Chaudhary , Kevin J. Gildea , Jason E. Goscinski , Rama K. Govindaraju , Donald G. Grice , Leonard W. Helmer, Jr. , Patricia E. Heywood , Peter H. Hochschild , John S. Houston , Chulho Kim , Steven J. Martin
发明人： Robert S. Blackmore , Fu Chung Chang , Piyush Chaudhary , Kevin J. Gildea , Jason E. Goscinski , Rama K. Govindaraju , Donald G. Grice , Leonard W. Helmer, Jr. , Patricia E. Heywood , Peter H. Hochschild , John S. Houston , Chulho Kim , Steven J. Martin
IPC分类号： G06F13/14
CPC分类号： H04L67/1097
摘要： In a multinode data processing system in which nodes exchange information over a network or through a switch, a structure and mechanism is provided within the realm of Remote Direct Memory Access (RDMA) operations in which DMA operations are present on one side of the transfer but not the other. On the side in which the transfer is not carried out in DMA fashion, transfer processing is carried out under program control; this is in contrast to the transfer on the DMA side which is characteristically carried out in hardware. Usage of these combination processes is useful in programming situations where RDMA is carried out to or from contiguous locations in memory on one side and where memory locations on the other side is noncontiguous. This split mode of transfer is provided both for read and for write operations.
摘要翻译：在其中节点通过网络或通过交换机交换信息的多节点数据处理系统中，在远程直接存储器访问（RDMA）操作的领域内提供了结构和机制，其中DMA操作存在于传输的一侧，但是不是其他的在DMA方式不进行传输的一方，传送处理在程序控制下进行; 这与在硬件上进行特征性的DMA侧的传输相反。这些组合过程的使用对于在一侧执行RDMA到存储器中的连续位置并且另一侧上的存储器位置不连续地执行RDMA的编程情况是有用的。这种分离传输模式为读取和写入操作都提供。

4. 发明授权

US08023417B2 Failover mechanisms in RDMA operations 失效
标题翻译： RDMA操作中的故障切换机制
公开(公告)号：US08023417B2
公开(公告)日：2011-09-20
申请号：US11017574
申请日：2004-12-20
申请人： Robert S. Blackmore , Fu Chung Chang , Piyush Chaudhary , Jason E. Goscinski , Rama K. Govindaraju , Leonard W. Helmer, Jr. , Peter H. Hochschild , John S. Houston , Steven J. Martin , Donald G. Grice
发明人： Robert S. Blackmore , Fu Chung Chang , Piyush Chaudhary , Jason E. Goscinski , Rama K. Govindaraju , Leonard W. Helmer, Jr. , Peter H. Hochschild , John S. Houston , Steven J. Martin , Donald G. Grice
IPC分类号： H04L12/56 , H04L9/00 , H04L29/06 , G06F15/173
CPC分类号： H04L1/0079 , G06F11/1443 , H04L1/1809 , H04L2001/0097
摘要： In remote direct memory access transfers in a multinode data processing system in which the nodes communicate with one another through communication adapters coupled to a switch or network, failures in the nodes or in the communication adapters can produce the phenomenon known as trickle traffic, which is data that has been received from the switch or from the network that is stale but which may have all the signatures of a valid packet data. The present invention addresses the trickle traffic problem in two situations: node failure and adapter failure. In the node failure situation randomly generated keys are used to reestablish connections to the adapter while providing a mechanism for the recognition of stale packets. In the adapter failure situation, a round robin context allocation approach is used with adapter state contexts being provided with state information which helps to identify stale packets.
摘要翻译：在多节点数据处理系统中的远程直接存储器访问传输中，其中节点通过耦合到交换机或网络的通信适配器彼此通信，节点或通信适配器中的故障可能产生称为流量流量的现象，已经从交换机接收到的数据或者来自网络的数据已经过时，但是可能具有有效分组数据的所有签名。本发明解决了两种情况下的涓流流量问题：节点故障和适配器故障。在节点故障情况下，随机生成的密钥用于重新建立与适配器的连接，同时提供用于识别过时数据包的机制。在适配器故障情况下，使用循环上下文分配方法，适配器状态上下文被提供有状态信息，其有助于识别过时的分组。

5. 发明授权

US06111894A Hardware interface between a switch adapter and a communications subsystem in a data processing system 失效
标题翻译：交换适配器与数据处理系统中的通信子系统之间的硬件接口
公开(公告)号：US06111894A
公开(公告)日：2000-08-29
申请号：US920084
申请日：1997-08-26
申请人： Carl A. Bender , Paul D. DiNicola , Kevin J. Gildea , Rama K. Govindaraju , Chulho Kim , Jamshed H. Mirza , Gautam H. Shah
发明人： Carl A. Bender , Paul D. DiNicola , Kevin J. Gildea , Rama K. Govindaraju , Chulho Kim , Jamshed H. Mirza , Gautam H. Shah
IPC分类号： H04L29/06 , G06F3/00
CPC分类号： H04L29/06 , H04L69/161 , H04L69/164 , H04L69/16
摘要： Method, apparatus and program product for communicating from a node to a communications device. A Hardware Abstraction Layer (HAL) provides functions which can be called from user space in a node to access the communications device. An instance of HAL is created in the node. Device specific characteristics from the communications device and a pointer pointing to HAL functions for accessing the communications device are obtained by HAL. HAL then opens multiple ports on the communications device using the functions pointed to by the pointer, and messages are sent between the node and the communications device. The messages thus sent are optimized with respect to the communications device as determined by the obtained device specific characteristics. Multiple processes and protocol stacks may be associated with each port in a single instance of HAL. A further embodiment provides that multiple virtual ports may be associated with a port, with a multiple protocol stacks associated with each virtual port. A further embodiment provides that multiple communications devices may be associated with a single instance of HAL.
摘要翻译：用于从节点到通信设备进行通信的方法，装置和程序产品。硬件抽象层（HAL）提供可从节点中的用户空间调用以访问通信设备的功能。在节点中创建HAL的一个实例。来自通信设备的设备特定特征和指向HAL功能的指针用于访问通信设备，由HAL获得。然后，HAL使用指针指向的功能在通信设备上打开多个端口，并且在节点和通信设备之间发送消息。如此发送的消息相对于通过所获得的设备特定特性确定的通信设备进行了优化。多个进程和协议栈可能与HAL的单个实例中的每个端口相关联。另一实施例提供了多个虚拟端口可以与端口相关联，其中多个协议栈与每个虚拟端口相关联。另一实施例提供多个通信设备可以与HAL的单个实例相关联。

6. 发明授权

US6070189A Signaling communication events in a computer network 失效
标题翻译：在计算机网络中进行信令通信事件
公开(公告)号：US6070189A
公开(公告)日：2000-05-30
申请号：US921757
申请日：1997-08-26
申请人： Carl A. Bender , Paul D. DiNicola , Kevin J. Gildea , Rama K. Govindaraju , Chulho Kim , Jamshed H. Mirza , Gautam H. Shah , Jaroslaw Nieplocha
发明人： Carl A. Bender , Paul D. DiNicola , Kevin J. Gildea , Rama K. Govindaraju , Chulho Kim , Jamshed H. Mirza , Gautam H. Shah , Jaroslaw Nieplocha
IPC分类号： G06F9/46 , G06F15/173 , G06F13/00
CPC分类号： G06F9/542 , G06F15/17375
摘要： A method, apparatus and program product for detecting a communication event in a distributed parallel data processing system in which a message is sent from an origin to a target. A low-level application programming interface (LAPI) is provided which has an operation for associating a counter with a communication event to be detected. The LAPI increments the counter upon the occurrence of the communication event. The number in the counter is monitored, and when the number increases, the event is detected. A completion counter in the origin is associated with the completion of a message being sent from the origin to the target. When the message is completed, LAPI increments the completion counter such that monitoring the completion counter detects the completion of the message. The completion counter may be used to insure that a first message has been sent from the origin to the target and completed before a second message is sent.
摘要翻译：一种用于检测分布式并行数据处理系统中的通信事件的方法，装置和程序产品，其中消息从原点发送到目标。提供了一种低级应用编程接口（LAPI），其具有将计数器与要检测的通信事件相关联的操作。 LAPI在通信事件发生时增加计数器。监视计数器中的数字，当数量增加时，检测到事件。原点的完成计数器与从原点发送到目标的消息的完成相关联。当消息完成时，LAPI会增加完成计数器，以便监视完成计数器检测到消息的完成。完成计数器可用于确保第一消息已经从原点发送到目标并且在发送第二消息之前完成。

7. 发明授权

US6038604A Method and apparatus for efficient communications using active messages 失效
标题翻译：用于使用活动消息进行高效通信的方法和装置
公开(公告)号：US6038604A
公开(公告)日：2000-03-14
申请号：US918816
申请日：1997-08-26
申请人： Carl A. Bender , Paul D. DiNicola , Kevin J. Gildea , Rama K. Govindaraju , Chulho Kim , Jamshed H. Mirza , Gautam H. Shah
发明人： Carl A. Bender , Paul D. DiNicola , Kevin J. Gildea , Rama K. Govindaraju , Chulho Kim , Jamshed H. Mirza , Gautam H. Shah
IPC分类号： G06F9/46 , H04L29/06 , H04L29/08 , G06F13/00
CPC分类号： G06F9/546 , H04L29/06 , H04L67/40 , H04L69/26 , H04L69/329
摘要： A method, apparatus and program product for message communication in a distributed parallel data processing system. A user message is sent from a sender to a receiver. The user message contains user data and a pointer to a header handler routine. The header handler routine includes a first pointer to a target user buffer and a second pointer to a completion routine. When the user message is received, a low level application program interface (LAPI) is informed which invokes the header handler routines which returns the first and second pointers. LAPI then transfers the user data to the user buffer indicated by the header handler routine, and invokes the completion routine indicated by the header handler routine to complete the transfer of the user message to the receiver.
摘要翻译：一种用于分布式并行数据处理系统中消息通信的方法，装置和程序产品。用户消息从发送方发送到接收方。用户消息包含用户数据和指向头处理程序例程的指针。报头处理程序例程包括指向目标用户缓冲区的第一指针和指向完成例程的第二指针。当接收到用户消息时，通知低级应用程序接口（LAPI），调用返回第一和第二指针的报头处理程序例程。然后，LAPI将用户数据传送到由报头处理程序指示的用户缓冲器，并调用由报头处理程序指示的完成例程，以完成将用户消息传送到接收器。

8. 发明授权

US07996593B2 Interrupt handling using simultaneous multi-threading 失效
标题翻译：中断处理使用同时多线程
公开(公告)号：US07996593B2
公开(公告)日：2011-08-09
申请号：US12371865
申请日：2009-02-16
申请人： Robert S. Blackmore , Rama K. Govindaraju , Peter H. Hochschild
发明人： Robert S. Blackmore , Rama K. Govindaraju , Peter H. Hochschild
IPC分类号： G06F9/48
CPC分类号： G06F9/5077 , G06F9/4812 , G06F9/4843 , G06F9/5027 , G06F2209/5018
摘要： Disclosed are a method, information processing system, and computer readable medium for managing interrupts. The method includes placing at least one physical processor of an information processing system in a simultaneous multi-threading mode. At least a first logical processor and a second logical processor associated with the at least one physical processor are partitioned. The first logical processor is assigned to manage interrupts and the second logical processor is assigned to dispatch runnable user threads.
摘要翻译：公开了一种用于管理中断的方法，信息处理系统和计算机可读介质。该方法包括将信息处理系统的至少一个物理处理器置于同时多线程模式中。至少与至少一个物理处理器相关联的第一逻辑处理器和第二逻辑处理器被分区。分配第一个逻辑处理器来管理中断，第二个逻辑处理器被分配给调度可运行的用户线程。

9. 发明授权

US07484062B2 Cache injection semi-synchronous memory copy operation 失效
标题翻译：缓存注入半同步内存复制操作
公开(公告)号：US07484062B2
公开(公告)日：2009-01-27
申请号：US11316070
申请日：2005-12-22
申请人： Ravi K. Arimilli , Rama K. Govindaraju , Peter H. Hochschild , Bruce G. Mealey , Satya P. Sharma , Balaram Sinharoy
发明人： Ravi K. Arimilli , Rama K. Govindaraju , Peter H. Hochschild , Bruce G. Mealey , Satya P. Sharma , Balaram Sinharoy
IPC分类号： G06F12/00 , G06F12/08
CPC分类号： G06F9/30032 , G06F9/3004 , G06F9/30087 , G06F9/383 , G06F9/3834 , G06F12/0862 , G06F12/0888 , G06F12/0897 , G06F2212/6028
摘要： A system, method, and a computer readable for inserting data into a cache memory based on information in a semi-synchronous memory copy instruction are disclosed. The method comprises determining a start of a semi-synchronous memory copy operation. The semi-synchronous memory copy operation is checked for a given value in at least one cache injection bit. In response to the given value in the cache injection bit, a predefined number of lines of destination data is copied into at least one level of cache memory.
摘要翻译：公开了一种基于半同步存储器复制指令中的信息将数据插入高速缓冲存储器的系统，方法和计算机。该方法包括确定半同步存储器复制操作的开始。在至少一个高速缓存注入位中检查给定值的半同步存储器复制操作。响应于高速缓存注入位中的给定值，预定数量的目的地数据行被复制到至少一级的高速缓存存储器中。

10. 发明授权

US07454585B2 Efficient and flexible memory copy operation 失效
标题翻译：高效灵活的内存复制操作
公开(公告)号：US07454585B2
公开(公告)日：2008-11-18
申请号：US11316663
申请日：2005-12-22
申请人： Ravi K. Arimilli , Rama K. Govindaraju , Peter H. Hochschild , Bruce G. Mealey , Satya P. Sharma , Balaram Sinharoy
发明人： Ravi K. Arimilli , Rama K. Govindaraju , Peter H. Hochschild , Bruce G. Mealey , Satya P. Sharma , Balaram Sinharoy
IPC分类号： G06F12/00 , G06F12/08
CPC分类号： G06F9/3834 , G06F9/3004 , G06F9/3824
摘要： A system, method, and computer program product for semi-synchronously copying data from a first portion of memory to a second portion of memory are disclosed. The method comprises receiving, in a processor, a call for a semi-synchronous memory copy operation. The semi-synchronous memory copy operation preserves temporal persistence of validity for a virtual source address corresponding to a source location in a memory and a virtual target address corresponding to a target location in the memory by setting a flag bit. The call includes at least the virtual source address, the virtual target address, and an indicator identifying a number of bytes to be copied. The memory copy operation is placed in a queue for execution by a memory controller. The queue is coupled to the memory controller. At least one subsequent instruction is continued to be executed as the subsequent instruction becomes available from an instruction pipeline.
摘要翻译：公开了一种用于将数据从存储器的第一部分半数同步地复制到存储器的第二部分的系统，方法和计算机程序产品。该方法包括在处理器中接收对半同步存储器复制操作的呼叫。半同步存储器复制操作通过设置标志位来保持对应于存储器中的源位置的虚拟源地址和对应于存储器中的目标位置的虚拟目标地址的有效性的时间持续性。该呼叫至少包括虚拟源地址，虚拟目标地址和标识要复制的字节数的指示符。存储器复制操作被放置在队列中以由存储器控制器执行。队列耦合到存储器控制器。随着随后的指令从指令流水线可用，继续执行至少一个后续指令。

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