公开(公告)号：US20130212339A1

公开(公告)日：2013-08-15

申请号：US13848546

申请日：2013-03-21

Applicant: Silicon Graphics International Corp.

Inventor： Donglai Dai ,  Randal Passint

IPC: G06F3/06

CPC classification number: G06F3/0644 ,  G06F12/0817 ,  G06F12/0826

Abstract: A method for maintaining data coherency in a shared-memory computer system having a plurality of nodes divides the local memory of a given node into one or more blocks and stores a data record for each block indicating a plurality of node groups and a selection of the node groups. Each selected node group represents a number of nodes, and selected node groups represent at least one node that has requested access to the block. In response to receiving an access request from a requesting node that may or may not be in a selected node group, the method and system update the data record to indicate the correct selection. If the requesting node is not in any node group, the data record is adjusted to have new node groups, one of which represents the requesting node.

Abstract translation: 一种用于在具有多个节点的共享存储器计算机系统中维持数据一致性的方法将给定节点的本地存储器划分为一个或多个块，并且存储指示多个节点组的每个块的数据记录，并且选择 节点组。 每个选定的节点组表示多个节点，并且所选择的节点组表示至少一个请求访问该块的节点。 响应于从请求节点接收到可能选择的节点组或可能不在所选节点组中的访问请求，该方法和系统更新数据记录以指示正确的选择。 如果请求节点不在任何节点组中，则将数据记录调整为具有新的节点组，其中一个表示请求节点。

公开(公告)号：US08812765B2

公开(公告)日：2014-08-19

申请号：US13848546

申请日：2013-03-21

Applicant: Silicon Graphics International Corp.

Inventor： Donglai Dai ,  Randal Passint

IPC: G06F12/00 ,  G06F12/08 ,  G06F3/06

CPC classification number: G06F3/0644 ,  G06F12/0817 ,  G06F12/0826

Abstract: A method for maintaining data coherency in a shared-memory computer system having a plurality of nodes divides the local memory of a given node into one or more blocks and stores a data record for each block indicating a plurality of node groups and a selection of the node groups. Each selected node group represents a number of nodes, and selected node groups represent at least one node that has requested access to the block. In response to receiving an access request from a requesting node that may or may not be in a selected node group, the method and system update the data record to indicate the correct selection. If the requesting node is not in any node group, the data record is adjusted to have new node groups, one of which represents the requesting node.

Abstract translation: 一种用于在具有多个节点的共享存储器计算机系统中维持数据一致性的方法将给定节点的本地存储器划分为一个或多个块，并且存储指示多个节点组的每个块的数据记录，并且选择 节点组。 每个选定的节点组表示多个节点，并且所选择的节点组表示至少一个请求访问该块的节点。 响应于从请求节点接收到可能选择的节点组或可能不在所选节点组中的访问请求，该方法和系统更新数据记录以指示正确的选择。 如果请求节点不在任何节点组中，则将数据记录调整为具有新的节点组，其中一个表示请求节点。