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21. 发明授权

US08756350B2 Method and apparatus for efficiently tracking queue entries relative to a timestamp 失效
标题翻译：相对于时间戳有效跟踪队列条目的方法和装置
公开(公告)号：US08756350B2
公开(公告)日：2014-06-17
申请号：US11768800
申请日：2007-06-26
申请人： Matthias A. Blumrich , Dong Chen , Alan G. Gara , Mark E. Giampapa , Philip Heidelberger , Martin Ohmacht , Valentina Salapura , Pavlos Vranas
发明人： Matthias A. Blumrich , Dong Chen , Alan G. Gara , Mark E. Giampapa , Philip Heidelberger , Martin Ohmacht , Valentina Salapura , Pavlos Vranas
IPC分类号： G06F3/00 , G06F5/00
CPC分类号： G06F12/0835 , G06F12/0831
摘要： An apparatus and method for tracking coherence event signals transmitted in a multiprocessor system. The apparatus comprises a coherence logic unit, each unit having a plurality of queue structures with each queue structure associated with a respective sender of event signals transmitted in the system. A timing circuit associated with a queue structure controls enqueuing and dequeuing of received coherence event signals, and, a counter tracks a number of coherence event signals remaining enqueued in the queue structure and dequeued since receipt of a timestamp signal. A counter mechanism generates an output signal indicating that all of the coherence event signals present in the queue structure at the time of receipt of the timestamp signal have been dequeued. In one embodiment, the timestamp signal is asserted at the start of a memory synchronization operation and, the output signal indicates that all coherence events present when the timestamp signal was asserted have completed. This signal can then be used as part of the completion condition for the memory synchronization operation.
摘要翻译：一种用于跟踪在多处理器系统中发送的相干事件信号的装置和方法。该装置包括相干逻辑单元，每个单元具有多个队列结构，每个队列结构与在系统中传输的事件信号的相应发送者相关联。与队列结构相关联的定时电路控制接收的相干事件信号的排队和出队，并且计数器跟踪队列结构中剩余入队的多个相干事件信号，并且从接收到时间戳信号起出队。计数器机构产生一个输出信号，指示在接收时间戳信号时存在于队列结构中的所有相干事件信号已经出队。在一个实施例中，时间戳信号在存储器同步操作的开始被断言，并且输出信号指示当时间戳信号被断言时存在的所有相干事件已经完成。然后可以将该信号用作存储器同步操作的完成条件的一部分。

22. 发明授权

US08468416B2 Combined group ECC protection and subgroup parity protection 有权
标题翻译：组合组ECC保护和子组奇偶校验保护
公开(公告)号：US08468416B2
公开(公告)日：2013-06-18
申请号：US11768527
申请日：2007-06-26
申请人： Alan G. Gara , Dong Chen , Philip Heidelberger , Martin Ohmacht
发明人： Alan G. Gara , Dong Chen , Philip Heidelberger , Martin Ohmacht
IPC分类号： H03M13/00
CPC分类号： G06F11/1076 , G06F11/1064 , G06F2212/403 , H03M1/0687 , H03M13/13 , H03M13/2707 , H03M13/271 , H03M13/29 , H03M13/616
摘要： A method and system are disclosed for providing combined error code protection and subgroup parity protection for a given group of n bits. The method comprises the steps of identifying a number, m, of redundant bits for said error protection; and constructing a matrix P, wherein multiplying said given group of n bits with P produces m redundant error correction code (ECC) protection bits, and two columns of P provide parity protection for subgroups of said given group of n bits. In the preferred embodiment of the invention, the matrix P is constructed by generating permutations of m bit wide vectors with three or more, but an odd number of, elements with value one and the other elements with value zero; and assigning said vectors to rows of the matrix P.
摘要翻译：公开了用于为给定的n位组提供组合的错误代码保护和子组奇偶校验保护的方法和系统。该方法包括以下步骤：识别用于所述错误保护的冗余位的数量m; 并且构造矩阵P，其中将所述给定的n个比特组与P相乘产生m个冗余纠错码（ECC）保护比特，并且两列P为所述给定组n比特的子组提供奇偶校验保护。在本发明的优选实施例中，矩阵P是通过产生具有三个或更多个奇数个元素的m位宽向量的排列而构成的，其中值为1的元素和其他元素的值为零; 并将所述向量分配给矩阵P的行。

23. 发明授权

US07797503B2 Configurable memory system and method for providing atomic counting operations in a memory device 有权
标题翻译：可配置的存储器系统和方法，用于在存储器件中提供原子计数操作
公开(公告)号：US07797503B2
公开(公告)日：2010-09-14
申请号：US11768812
申请日：2007-06-26
申请人： Ralph E. Bellofatto , Alan G. Gara , Mark E. Giampapa , Martin Ohmacht
发明人： Ralph E. Bellofatto , Alan G. Gara , Mark E. Giampapa , Martin Ohmacht
IPC分类号： G06F12/00
CPC分类号： G06F12/10 , G06F9/3004 , G06F9/30185 , G06F9/3834 , G06F9/3851 , G06F9/3861 , G06F12/0292 , G06F12/1027 , G06F2212/1044 , G06F2212/206
摘要： A memory system and method for providing atomic memory-based counter operations to operating systems and applications that make most efficient use of counter-backing memory and virtual and physical address space, while simplifying operating system memory management, and enabling the counter-backing memory to be used for purposes other than counter-backing storage when desired. The encoding and address decoding enabled by the invention provides all this functionality through a combination of software and hardware.
摘要翻译：一种用于向操作系统和应用提供基于原子的存储器的计数器操作的存储器系统和方法，所述操作系统和应用可最有效地利用反向存储器和虚拟和物理地址空间，同时简化操作系统存储器管理，在需要的时候用于除背板存储之外的目的。通过本发明实现的编码和地址解码通过软件和硬件的组合来提供所有这些功能。

24. 发明申请

US20090313439A1 MANAGING COHERENCE VIA PUT/GET WINDOWS 失效
标题翻译：通过输入/获取窗口管理相关性
公开(公告)号：US20090313439A1
公开(公告)日：2009-12-17
申请号：US12543890
申请日：2009-08-19
申请人： Matthias A. Blumrich , Dong Chen , Paul W. Coteus , Alan G. Gara , Mark E. Giampapa , Philip Heidelberger , Dirk Hoenicke , Martin Ohmacht
发明人： Matthias A. Blumrich , Dong Chen , Paul W. Coteus , Alan G. Gara , Mark E. Giampapa , Philip Heidelberger , Dirk Hoenicke , Martin Ohmacht
IPC分类号： G06F12/08
CPC分类号： H05K7/20836 , F24F11/77 , G06F9/52 , G06F9/526 , G06F15/17381 , G06F17/142 , G09G5/008 , H04L7/0338
摘要： A method and apparatus for managing coherence between two processors of a two processor node of a multi-processor computer system. Generally the present invention relates to a software algorithm that simplifies and significantly speeds the management of cache coherence in a message passing parallel computer, and to hardware apparatus that assists this cache coherence algorithm. The software algorithm uses the opening and closing of put/get windows to coordinate the activated required to achieve cache coherence. The hardware apparatus may be an extension to the hardware address decode, that creates, in the physical memory address space of the node, an area of virtual memory that (a) does not actually exist, and (b) is therefore able to respond instantly to read and write requests from the processing elements.
摘要翻译：一种用于管理多处理器计算机系统的两个处理器节点的两个处理器之间的相干性的方法和装置。通常，本发明涉及一种软件算法，其简化并显着加速了传送并行计算机的消息中的高速缓存一致性的管理以及辅助该高速缓存一致性算法的硬件设备。软件算法使用put / get窗口的打开和关闭来协调激活的所需要的，以实现缓存一致性。硬件设备可以是硬件地址解码的扩展，其在节点的物理存储器地址空间中创建（a）实际不存在的虚拟存储器的区域，并且（b）因此能够立即响应从处理元素读取和写入请求。

25. 发明授权

US07603523B2 Method and apparatus for filtering snoop requests in a point-to-point interconnect architecture 失效
标题翻译：用于在点对点互连架构中过滤窥探请求的方法和装置
公开(公告)号：US07603523B2
公开(公告)日：2009-10-13
申请号：US12035085
申请日：2008-02-21
申请人： Matthias A. Blumrich , Dong Chen , Alan G. Gara , Mark E. Giampapa , Philip Heidelberger , Dirk I. Hoenicke , Martin Ohmacht , Valentina Salapura , Pavlos M. Vranas
发明人： Matthias A. Blumrich , Dong Chen , Alan G. Gara , Mark E. Giampapa , Philip Heidelberger , Dirk I. Hoenicke , Martin Ohmacht , Valentina Salapura , Pavlos M. Vranas
IPC分类号： G06F12/08 , G06F13/00
CPC分类号： G06F12/0831 , G06F12/084 , Y02D10/13
摘要： A method and apparatus for supporting cache coherency in a multiprocessor computing environment having multiple processing units, each processing unit having one or more local cache memories associated and operatively connected therewith. The method comprises providing a snoop filter device associated with each processing unit, each snoop filter device having a plurality of dedicated input ports for receiving snoop requests from dedicated memory writing sources in the multiprocessor computing environment. Each of the memory writing sources is directly connected to the dedicated input ports of all other snoop filter devices associated with all other processing units in a point-to-point interconnect fashion. Each snoop filter device includes a plurality of parallel operating port snoop filters in correspondence with the plurality of dedicated input ports that are adapted to concurrently filter snoop requests received from respective dedicated memory writing sources and forward a subset of those requests to its associated processing unit.
摘要翻译：一种用于在具有多个处理单元的多处理器计算环境中支持高速缓存一致性的方法和装置，每个处理单元具有与其相关联并与之可操作地相连的一个或多个本地高速缓冲存储器。该方法包括提供与每个处理单元相关联的窥探过滤器设备，每个窥探过滤器设备具有多个专用输入端口，用于从多处理器计算环境中的专用存储器写入源接收窥探请求。每个存储器写入源以点对点互连方式直接连接到与所有其他处理单元相关联的所有其他窥探滤波器设备的专用输入端口。每个窥探过滤器装置包括与多个专用输入端口相对应的多个并行操作端口窥探滤波器，该多个专用输入端口适于同时滤除从相应专用存储器写入源接收到的窥探请求，并将这些请求的子集转发到其相关联的处理单元。

26. 发明授权

US07529895B2 Method for prefetching non-contiguous data structures 失效
标题翻译：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。

27. 发明申请

US20090006894A1 METHOD AND APPARATUS TO DEBUG AN INTEGRATED CIRCUIT CHIP VIA SYNCHRONOUS CLOCK STOP AND SCAN 失效
标题翻译：通过同步时钟停止和扫描来调试集成电路芯片的方法和设备
公开(公告)号：US20090006894A1
公开(公告)日：2009-01-01
申请号：US11768791
申请日：2007-06-26
申请人： Ralph E. Bellofatto , Matthew R. Ellavsky , Alan G. Gara , Mark E. Giampapa , Thomas M. Gooding , Rudolf A. Haring , Lance G. Hehenberger , Martin Ohmacht
发明人： Ralph E. Bellofatto , Matthew R. Ellavsky , Alan G. Gara , Mark E. Giampapa , Thomas M. Gooding , Rudolf A. Haring , Lance G. Hehenberger , Martin Ohmacht
IPC分类号： G06F11/00
CPC分类号： G06F11/2236
摘要： An apparatus and method for evaluating a state of an electronic or integrated circuit (IC), each IC including one or more processor elements for controlling operations of IC sub-units, and each the IC supporting multiple frequency clock domains. The method comprises: generating a synchronized set of enable signals in correspondence with one or more IC sub-units for starting operation of one or more IC sub-units according to a determined timing configuration; counting, in response to one signal of the synchronized set of enable signals, a number of main processor IC clock cycles; and, upon attaining a desired clock cycle number, generating a stop signal for each unique frequency clock domain to synchronously stop a functional clock for each respective frequency clock domain; and, upon synchronously stopping all on-chip functional clocks on all frequency clock domains in a deterministic fashion, scanning out data values at a desired IC chip state. The apparatus and methodology enables construction of a cycle-by-cycle view of any part of the state of a running IC chip, using a combination of on-chip circuitry and software.
摘要翻译：一种用于评估电子或集成电路（IC）的状态的装置和方法，每个IC包括用于控制IC子单元的操作的一个或多个处理器元件，以及每个支持多个时钟域的IC。该方法包括：根据确定的定时配置，产生与一个或多个IC子单元相对应的用于开始一个或多个IC子单元的操作的同步的使能信号组; 计数，响应于同步的一组使能信号的一个信号，多个主处理器IC时钟周期; 并且在获得期望的时钟周期数时，产生用于每个唯一频率时钟域的停止信号以同步地停止每个相应频率时钟域的功能时钟; 并且在确定性地同时停止所有频率时钟域上的所有片上功能时钟时，以期望的IC芯片状态扫描数据值。该装置和方法使得能够使用片上电路和软件的组合来构建运行中的IC芯片的状态的任何部分的逐周期视图。

28. 发明申请

US20090006873A1 POWER THROTTLING OF COLLECTIONS OF COMPUTING ELEMENTS 失效
标题翻译：计算元素收集的功率曲线
公开(公告)号：US20090006873A1
公开(公告)日：2009-01-01
申请号：US11768752
申请日：2007-06-26
申请人： Ralph E. Bellofatto , Paul W. Coteus , Paul G. Crumley , Alan G. Gara , Mark E. Giampapa , Thomas M. Gooding , Rudolf Haring , Mark G. Megerian , Martin Ohmacht , Don D. Reed , Richard A. Swetz , Todd Takken
发明人： Ralph E. Bellofatto , Paul W. Coteus , Paul G. Crumley , Alan G. Gara , Mark E. Giampapa , Thomas M. Gooding , Rudolf Haring , Mark G. Megerian , Martin Ohmacht , Don D. Reed , Richard A. Swetz , Todd Takken
IPC分类号： G06F1/26
CPC分类号： G06F1/3203 , G06F1/206
摘要： An apparatus and method for controlling power usage in a computer includes a plurality of computers communicating with a local control device, and a power source supplying power to the local control device and the computer. A plurality of sensors communicate with the computer for ascertaining power usage of the computer, and a system control device communicates with the computer for controlling power usage of the computer.
摘要翻译：用于控制计算机中的电力使用的装置和方法包括与本地控制装置通信的多个计算机，以及向本地控制装置和计算机供电的电源。多个传感器与计算机通信以确定计算机的功率使用，并且系统控制装置与计算机通信以控制计算机的电力使用。

29. 发明申请

US20090006800A1 CONFIGURABLE MEMORY SYSTEM AND METHOD FOR PROVIDING ATOMIC COUNTING OPERATIONS IN A MEMORY DEVICE 有权
标题翻译：用于在存储器件中提供原始计数操作的可配置存储器系统和方法
公开(公告)号：US20090006800A1
公开(公告)日：2009-01-01
申请号：US11768812
申请日：2007-06-26
申请人： Ralph E. Bellofatto , Alan G. Gara , Mark E. Giampapa , Martin Ohmacht
发明人： Ralph E. Bellofatto , Alan G. Gara , Mark E. Giampapa , Martin Ohmacht
IPC分类号： G06F12/00
CPC分类号： G06F12/10 , G06F9/3004 , G06F9/30185 , G06F9/3834 , G06F9/3851 , G06F9/3861 , G06F12/0292 , G06F12/1027 , G06F2212/1044 , G06F2212/206
摘要： A memory system and method for providing atomic memory-based counter operations to operating systems and applications that make most efficient use of counter-backing memory and virtual and physical address space, while simplifying operating system memory management, and enabling the counter-backing memory to be used for purposes other than counter-backing storage when desired. The encoding and address decoding enabled by the invention provides all this functionality through a combination of software and hardware.
摘要翻译：一种用于向操作系统和应用提供基于原子的存储器的计数器操作的存储器系统和方法，所述操作系统和应用可最有效地利用反向存储器和虚拟和物理地址空间，同时简化操作系统存储器管理，在需要的时候用于除背板存储之外的目的。通过本发明实现的编码和地址解码通过软件和硬件的组合来提供所有这些功能。

30. 发明申请

US20090006730A1 DATA EYE MONITOR METHOD AND APPARATUS 失效
标题翻译：数据眼观察方法和装置
公开(公告)号：US20090006730A1
公开(公告)日：2009-01-01
申请号：US11768810
申请日：2007-06-26
申请人： Alan G. Gara , James A. Marcella , Martin Ohmacht
发明人： Alan G. Gara , James A. Marcella , Martin Ohmacht
IPC分类号： G06F12/00
CPC分类号： G06F13/1689
摘要： An apparatus and method for providing a data eye monitor. The data eye monitor apparatus utilizes an inverter/latch string circuit and a set of latches to save the data eye for providing an infinite persistent data eye. In operation, incoming read data signals are adjusted in the first stage individually and latched to provide the read data to the requesting unit. The data is also simultaneously fed into a balanced XOR tree to combine the transitions of all incoming read data signals into a single signal. This signal is passed along a delay chain and tapped at constant intervals. The tap points are fed into latches, capturing the transitions at a delay element interval resolution. Using XORs, differences between adjacent taps and therefore transitions are detected. The eye is defined by segments that show no transitions over a series of samples. The eye size and position can be used to readjust the delay of incoming signals and/or to control environment parameters like voltage, clock speed and temperature.
摘要翻译：一种用于提供数据眼监护仪的装置和方法。数据眼监视装置利用逆变器/锁存器串电路和一组锁存器来保存数据，以提供无限持续数据眼。在操作中，输入的读数据信号在第一阶段被单独地调整并被锁存以将读取的数据提供给请求单元。数据也被同时馈送到平衡XOR树中，以将所有输入的读取数据信号的转换组合成单个信号。该信号沿着延迟链传递，并以恒定间隔敲击。抽头点被馈送到锁存器，以延迟元件间隔分辨率捕获转换。使用XOR，检测相邻抽头之间的差异，因此检测到转换之间的差异。眼睛由在一系列样本上没有显示转换的片段定义。眼睛大小和位置可用于重新调整输入信号的延迟和/或控制环境参数，如电压，时钟速度和温度。

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