公开(公告)号：US06826653B2

公开(公告)日：2004-11-30

申请号：US10068427

申请日：2002-02-06

申请人： Samuel H. Duncan ,  Frederick C. Canter ,  Darrel D. Donaldson ,  David W. Hartwell

发明人： Samuel H. Duncan ,  Frederick C. Canter ,  Darrel D. Donaldson ,  David W. Hartwell

IPC分类号： G06F1200

CPC分类号： G06F12/0817 ,  G06F2212/621

摘要： A system and method are provided for moving information between cache coherent memory systems of a partitioned multiprocessor computer system while containing faults to a single partition. The multiprocessor computer system includes a plurality of processors, memory subsystems and input/output (I/O) subsystems that can be divided into a plurality of partitions. Each I/O subsystem includes at least one I/O bridge for interfacing between one or more I/O devices and the multiprocessor system. The I/O bridge has a data mover configured to retrieve information from a “source” partition and to store that information within its own “destination” partition. When activated, the data mover issues a request to the source partition for a non-coherent copy of the information. The home memory subsystem in the source partition preferably responds to the request by sending the data mover “valid”, but non-coherent copy of the information, e.g., a “snapshot” of the information as of the time of the request. Upon receiving the information, the data mover may copy it into the memory subsystem of the destination partition.

摘要翻译： 提供了一种系统和方法，用于在分区多处理器计算机系统的高速缓存一致存储器系统之间移动信息，同时将故障包含在单个分区中。 多处理器计算机系统包括可以被分成多个分区的多个处理器，存储器子系统和输入/输出（I / O）子系统。 每个I / O子系统包括用于在一个或多个I / O设备和多处理器系统之间进行接口的至少一个I / O桥。 I / O网桥具有数据移动设备，用于从“源”分区检索信息，并将该信息存储在其自己的“目标”分区中。 当激活时，数据移动器向源分区发出请求，以获得不相干的信息副本。 源分区中的家用存储器子系统优选地通过发送数据移动器“有效”但是信息的非相干副本（例如，请求的时间的信息的“快照”）来响应该请求。 一旦接收到该信息，数据移动器可将其复制到目的地分区的存储子系统中。