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1. 发明授权

US5598529A Computer system resilient to a wide class of failures 失效
标题翻译：计算机系统适应各种各样的故障
公开(公告)号：US5598529A
公开(公告)日：1997-01-28
申请号：US416594
申请日：1995-04-03
申请人： Juan A. Garay , Kenneth J. Perry
发明人： Juan A. Garay , Kenneth J. Perry
IPC分类号： G06F11/18 , G06F11/00 , G06F15/16 , G06F11/34
CPC分类号： G06F11/182
摘要： This invention includes a consensus protocol, a broadcast protocol and a fault tolerant computer system created by using the two protocols together in combination. The protocols and system use the minimum number of processors to create a system tolerant of concurrent processor crash and byzantine failures. The protocols are subject to certain validity conditions. The system in the state of consensus is guaranteed to have all non-faulty processors in agreement as to what action the system should take. The system and protocols can tolerate up to t total number of processor failures, no more than b of which may fail in the byzantine mode.
摘要翻译：本发明包括共同协议，广播协议和通过组合使用两个协议而创建的容错计算机系统。协议和系统使用最少数量的处理器来创建容错并发处理器崩溃和拜占庭故障的系统。协议受到某些有效性条件的约束。协调一致的制度保证所有无故障的处理器对于系统应采取的行动达成一致。系统和协议可以容忍最多达到总处理器故障数量，其中不超过b的拜占庭模式可能会失败。

2. 发明授权

US5504887A Storage clustering and packing of objects on the basis of query workload ranking 失效
标题翻译：在查询工作量排序的基础上对对象的存储集群和打包
公开(公告)号：US5504887A
公开(公告)日：1996-04-02
申请号：US120102
申请日：1993-09-10
申请人： Ashok Malhotra , Kenneth J. Perry
发明人： Ashok Malhotra , Kenneth J. Perry
IPC分类号： G06F17/30
CPC分类号： G06F17/3046 , G06F17/30705 , Y10S707/99956
摘要： An apparatus and method is disclosed for efficiently clustering program objects on a unit of storage in a secondary memory, e.g., a page of memory on a disc. The objects are clustered so that a set of queries (query set) can access the stored objects with a minimum number of page transfers from secondary storage to main memory. To determine how the objects are clustered together on each memory page, queries in the query set and the objects that they access are identified. The queries are ranked by a number of factors including the query weight, the memory space required to store objects accessed by a query, and the number of objects a query has in common with other queries. The objects accessed by the query set are clustered on secondary memory pages according to the query ranking. Partially packed memory pages can be combined to minimize the cost of the query set accessing the stored objects.
摘要翻译：公开了一种用于在次要存储器（例如盘上的存储器页）上的存储单元上有效地聚类程序对象的装置和方法。这些对象是聚类的，因此一组查询（查询集）可以使用从辅助存储器到主内存的最少页面传输访问存储的对象。要确定对象在每个内存页面上如何聚类在一起，查询集中的查询和访问对象都会被识别。这些查询由多个因素排列，包括查询权重，存储查询所访问对象所需的内存空间以及查询与其他查询相同的对象数。查询集所访问的对象根据查询排名聚类在辅助内存页面上。可以组合部分打包的内存页面以最小化访问存储对象的查询集的成本。

3. 发明授权

US4885578A In band connection establishment for a multiple multi-drop network 失效
标题翻译：用于多重多点网络的带内连接建立
公开(公告)号：US4885578A
公开(公告)日：1989-12-05
申请号：US940891
申请日：1986-12-12
申请人： Kenneth J. Perry , Yannick J. Thefaine , Brent T. Hailpern , Lee W. Hoevel , Dennis G. Shea
发明人： Kenneth J. Perry , Yannick J. Thefaine , Brent T. Hailpern , Lee W. Hoevel , Dennis G. Shea
IPC分类号： G06F15/16 , G06F15/173 , G06F15/177 , G06F15/80
CPC分类号： G06F15/8015 , G06F15/173
摘要： A system for establishing connections between processors in a distributed system of processors connected by a multiple multi-drop network. No wires are needed in addition to those already present in an existing network. In such a network connecting n processors, each processor is connected to all others by n identical multi-drop links. Links are assigned to processors on a one-to-one basis and a processor may transmit messages only on its assigned link. Processors may receive messages on any of these links, thereby enabling a processor to communicate with all others. The advantage of such a network over a single multi-drop link is that there is no contention for a shared link since each processor has a unique transmit line. In addition, no central control means is required for the network, as completely distributed control is utilized.
摘要翻译：一种用于在由多重多点网络连接的处理器的分布式系统中的处理器之间建立连接的系统。除现有网络中已经存在的线路外，还不需要电线。在这种连接n个处理器的网络中，每个处理器通过相同的多点链接连接到所有其他处理器。链路以一对一的方式分配给处理器，并且处理器可以仅在其分配的链路上传送消息。处理器可以在这些链接中的任何一个上接收消息，从而使处理器能够与所有其他链接进行通信。这种网络在单个多点链路上的优点在于，由于每个处理器具有唯一的传输线，所以没有争用共享链路。另外，由于使用完全分布式控制，因此网络不需要中央控制装置。

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