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1. 发明授权

US07613882B1 Fast invalidation for cache coherency in distributed shared memory system 有权
标题翻译：分布式共享内存系统中缓存一致性的快速无效
公开(公告)号：US07613882B1
公开(公告)日：2009-11-03
申请号：US11668275
申请日：2007-01-29
申请人： Isam Akkawi , Michael Woodacre , Bryan Chin , Krishnan Subramani , Najeeb Imran Ansari , Chetana Nagendra Keltcher , Janakiramanan Vaidyanathan
发明人： Isam Akkawi , Michael Woodacre , Bryan Chin , Krishnan Subramani , Najeeb Imran Ansari , Chetana Nagendra Keltcher , Janakiramanan Vaidyanathan
IPC分类号： G06F12/08 , G06F15/163
CPC分类号： G06F12/0833
摘要： An example embodiment of the present invention provides processes relating to a cache coherence protocol for distributed shared memory. In one process, a DSM-management chip receives a request to modify a block of memory stored on a node that includes the chip and one or more CPUs, which request is marked for fast invalidation and comes from one of the CPUs. The DSM-management chip sends probes, also marked for fast invalidation, to DSM-management chips on other nodes where the block of memory is cached and responds to the original probe, allowing the requested modification to proceed without waiting for responses from the probes. Then the DSM-management chip delays for a pre-determined time period before incrementing the value of a serial counter which operates in connection with another serial counter to prevent data from leaving the node's CPUs over the network until responses to the probes have been received.
摘要翻译：本发明的示例性实施例提供了与分布式共享存储器的高速缓存一致性协议有关的处理。在一个过程中，DSM管理芯片接收修改存储在包括芯片的节点和一个或多个CPU的存储器块的请求，该请求被标记为快速无效，并且来自其中一个CPU。 DSM管理芯片还将标记为快速无效的探针发送到存储器块缓存的其他节点上的DSM管理芯片，并对原始探针进行响应，从而允许请求的修改进行，而无需等待探测器的响应。然后，DSM管理芯片在增加与另一个串行计数器连接的串行计数器的值之前延迟预定时间段，以防止数据通过网络离开节点的CPU，直到已经接收到对探针的响应。

2. 发明申请

US20110004729A1 Block Caching for Cache-Coherent Distributed Shared Memory 审中-公开
标题翻译：缓存相干分布式共享内存的块缓存
公开(公告)号：US20110004729A1
公开(公告)日：2011-01-06
申请号：US11959758
申请日：2007-12-19
申请人： Isam Akkawi , Najeeb Imran Ansari , Bryan Chin , Chetana Nagendra Keltcher , Krishnan Subramani , Janakiramanan Vaidyanathan
发明人： Isam Akkawi , Najeeb Imran Ansari , Bryan Chin , Chetana Nagendra Keltcher , Krishnan Subramani , Janakiramanan Vaidyanathan
IPC分类号： G06F12/08
CPC分类号： G06F12/082 , G06F12/0813
摘要： Methods, apparatuses, and systems directed to the caching of blocks of lines of memory in a cache-coherent, distributed shared memory system. Block caches used in conjunction with line caches can be used to store more data with less tag memory space compared to the use of line caches alone and can therefore reduce memory requirements. In one particular embodiment, the present invention manages this caching using a DSM-management chip, after the allocation of the blocks by software, such as a hypervisor. An example embodiment provides processing relating to block caches in cache-coherent distributed shared memory.
摘要翻译：针对缓存相干，分布式共享存储器系统中缓存存储器块的方法，装置和系统。与线路高速缓存结合使用的块高速缓存可以与单独使用线路高速缓存相比，用于存储具有较少标签存储空间的更多数据，因此可以减少内存需求。在一个特定实施例中，本发明在通过诸如管理程序的软件分配块之后，使用DSM管理芯片来管理该缓存。示例性实施例提供了与高速缓存一致分布式共享存储器中的块高速缓存相关的处理。

3. 发明授权

US07715400B1 Node identification for distributed shared memory system 有权
标题翻译：分布式共享内存系统的节点识别
公开(公告)号：US07715400B1
公开(公告)日：2010-05-11
申请号：US11740432
申请日：2007-04-26
申请人： Shahe Hagop Krakirian , Isam Akkawi
发明人： Shahe Hagop Krakirian , Isam Akkawi
IPC分类号： H04L12/28
CPC分类号： H04L49/9047 , H04L49/90 , H04L49/9042
摘要： An example embodiment of the present invention provides processes relating to a connection/communication protocol and a memory-addressing scheme for a distributed shared memory system. In the example embodiment, a logical node identifier comprises bits in the physical memory addresses used by the distributed shared memory system. Processes in the embodiment include logical node identifiers in packets which conform to the protocol and which are stored in a connection control block in local memory. By matching the logical node identifiers in a packet against the logical node identifiers in the connection control block, the processes ensure reliable delivery of packet data. Further, in the example embodiment, the logical node identifiers are used to create a virtual server consisting of multiple nodes in the distributed shared memory system.
摘要翻译：本发明的示例实施例提供了与分布式共享存储器系统的连接/通信协议和存储器寻址方案有关的过程。在示例实施例中，逻辑节点标识符包括由分布式共享存储器系统使用的物理存储器地址中的比特。实施例中的处理包括符合协议并且存储在本地存储器中的连接控制块中的分组中的逻辑节点标识符。通过将分组中的逻辑节点标识符与连接控制块中的逻辑节点标识符相匹配，该过程确保分组数据的可靠传递。此外，在示例实施例中，逻辑节点标识符用于创建由分布式共享存储器系统中的多个节点组成的虚拟服务器。

4. 发明授权

US07783788B1 Virtual input/output server 有权
标题翻译：虚拟输入/输出服务器
公开(公告)号：US07783788B1
公开(公告)日：2010-08-24
申请号：US11624573
申请日：2007-01-18
申请人： Robert Quinn , Ushasri Sunkara , Isam Akkawi , Scott Arthur Lurndal
发明人： Robert Quinn , Ushasri Sunkara , Isam Akkawi , Scott Arthur Lurndal
IPC分类号： G06F3/00 , G06F13/12 , G06F13/38 , G06F13/00 , G06F12/00 , G06F9/00 , G06F9/24 , G06F15/177 , G06F1/24
CPC分类号： G06F9/5077
摘要： Methods, apparatuses and systems directed to virtualized access to input/output (I/O) subsystems. In one implementation, the present invention allows multiple stand-alone application servers or virtual servers to share one or more I/O subsystems, such as host-bus adapters and network interface cards. In one implementation, I/O access is managed by one or more virtual I/O servers. A virtual I/O server includes a multiplexer, and associated modules, that connect application servers over an I/O switch fabric with one or more HBA and/or NIC drivers. Implementations of the present invention can be configured to consolidate I/O access, allowing multiple servers to share one or more HBAs and NICs; dynamic control over network and storage I/O bandwidth; and provisioning of network and storage I/O access across multiple application servers.
摘要翻译：针对虚拟化访问输入/输出（I / O）子系统的方法，设备和系统。在一个实现中，本发明允许多个独立应用服务器或虚拟服务器共享一个或多个I / O子系统，诸如主机总线适配器和网络接口卡。在一个实现中，I / O访问由一个或多个虚拟I / O服务器管理。虚拟I / O服务器包括一个多路复用器和相关联的模块，它们通过一个或多个HBA和/或NIC驱动程序将应用程序服务器通过I / O交换结构连接。本发明的实现可以被配置为整合I / O访问，允许多个服务器共享一个或多个HBA和NIC; 动态控制网络和存储I / O带宽; 并跨多个应用程序服务器提供网络和存储I / O访问。

5. 再颁专利

USRE44610E1 Node identification for distributed shared memory system 有权
标题翻译：分布式共享内存系统的节点识别
公开(公告)号：USRE44610E1
公开(公告)日：2013-11-26
申请号：US13468751
申请日：2012-05-10
申请人： Shahe Hagop Krakirian , Isam Akkawi
发明人： Shahe Hagop Krakirian , Isam Akkawi
IPC分类号： H04L12/28
CPC分类号： H04L49/9047 , H04L49/90 , H04L49/9042
摘要： An example embodiment of the present invention provides processes relating to a connection/communication protocol and a memory-addressing scheme for a distributed shared memory system. In the example embodiment, a logical node identifier comprises bits in the physical memory addresses used by the distributed shared memory system. Processes in the embodiment include logical node identifiers in packets which conform to the protocol and which are stored in a connection control block in local memory. By matching the logical node identifiers in a packet against the logical node identifiers in the connection control block, the processes ensure reliable delivery of packet data. Further, in the example embodiment, the logical node identifiers are used to create a virtual server consisting of multiple nodes in the distributed shared memory system.
摘要翻译：本发明的示例实施例提供了与分布式共享存储器系统的连接/通信协议和存储器寻址方案有关的过程。在示例实施例中，逻辑节点标识符包括由分布式共享存储器系统使用的物理存储器地址中的比特。实施例中的处理包括符合协议并且存储在本地存储器中的连接控制块中的分组中的逻辑节点标识符。通过将分组中的逻辑节点标识符与连接控制块中的逻辑节点标识符相匹配，该过程确保分组数据的可靠传递。此外，在示例实施例中，逻辑节点标识符用于创建由分布式共享存储器系统中的多个节点组成的虚拟服务器。

6. 发明申请

US20110004732A1 DMA in Distributed Shared Memory System 审中-公开
标题翻译：分布式共享内存系统中的DMA
公开(公告)号：US20110004732A1
公开(公告)日：2011-01-06
申请号：US11758919
申请日：2007-06-06
申请人： Shahe Hagop Krakirian , Isam Akkawi , I-Ping Wu
发明人： Shahe Hagop Krakirian , Isam Akkawi , I-Ping Wu
IPC分类号： G06F12/00
CPC分类号： G06F12/0817 , G06F13/28 , G06F2212/621
摘要： An example embodiment of the present invention provides processes relating to direct memory access (DMA) for nodes in a distributed shared memory system with virtual storage. The processes in the embodiment relate to DMA read, write, and push operations. In the processes, an initiator node in the system sends a message to the home node where the data for the operation will reside or presently resides, so that the home node can directly receive data from or send data to the target server, which might be a virtual I/O server. The processes employ a distributed shared memory logic circuit that is a component of each node and a connection/communication protocol for sending and receiving packets over a scalable interconnect such as InfiniBand. In the example embodiment, the processes also employ a DMA control block which points to a scatter/gather list and which control block resides in shared memory.
摘要翻译：本发明的示例性实施例提供了与具有虚拟存储器的分布式共享存储器系统中的节点的直接存储器访问（DMA）相关的处理。实施例中的过程涉及DMA读，写和推操作。在这些进程中，系统中的发起者节点向主节点发送消息，其中操作的数据将驻留或当前驻留，使得家庭节点可以直接从目标服务器接收数据或向目标服务器发送数据，这可能是虚拟I / O服务器。这些过程采用作为每个节点的分量的分布式共享存储器逻辑电路和用于通过可伸缩互连（例如InfiniBand）发送和接收分组的连接/通信协议。在示例实施例中，该过程还采用指向分散/收集列表的DMA控制块以及哪个控制块驻留在共享存储器中。

7. 发明申请

US20110004733A1 Node Identification for Distributed Shared Memory System 审中-公开
标题翻译：分布式共享内存系统的节点识别
公开(公告)号：US20110004733A1
公开(公告)日：2011-01-06
申请号：US12755113
申请日：2010-04-06
申请人： Shahe Hagop Krakirian , Isam Akkawi
发明人： Shahe Hagop Krakirian , Isam Akkawi
IPC分类号： G06F12/00
CPC分类号： H04L49/9047 , H04L49/90 , H04L49/9042
摘要： An example embodiment of the present invention provides processes relating to a connection/communication protocol and a memory-addressing scheme for a distributed shared memory system. In the example embodiment, a logical node identifier comprises bits in the physical memory addresses used by the distributed shared memory system. Processes in the embodiment include logical node identifiers in packets which conform to the protocol and which are stored in a connection control block in local memory. By matching the logical node identifiers in a packet against the logical node identifiers in the connection control block, the processes ensure reliable delivery of packet data. Further, in the example embodiment, the. logical node identifiers are used to create a virtual server consisting of multiple nodes in. the distributed shared memory system.
摘要翻译：本发明的示例实施例提供了与分布式共享存储器系统的连接/通信协议和存储器寻址方案有关的过程。在示例实施例中，逻辑节点标识符包括由分布式共享存储器系统使用的物理存储器地址中的比特。实施例中的处理包括符合协议并且存储在本地存储器中的连接控制块中的分组中的逻辑节点标识符。通过将分组中的逻辑节点标识符与连接控制块中的逻辑节点标识符相匹配，该过程确保分组数据的可靠传递。此外，在示例性实施例中，逻辑节点标识符用于创建由分布式共享存储器系统中的多个节点组成的虚拟服务器。

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