公开(公告)号：US07917646B2

公开(公告)日：2011-03-29

申请号：US10325427

申请日：2002-12-19

申请人： Herbert H. J. Hum ,  James R. Goodman ,  Robert H. Beers ,  Rajnish Ghughal

发明人： Herbert H. J. Hum ,  James R. Goodman ,  Robert H. Beers ,  Rajnish Ghughal

IPC分类号： G06F15/16

CPC分类号： G06F12/0831 ,  G06F12/0826 ,  G06F2212/622

摘要： A conflict resolution technique provides consistency such that all conflicts can be detected by at least one of the conflicting requestors if each node monitors all requests after that node has made its own request. If a line is in the Exclusive, Modified or Forward state, conflicts are resolved at the node holding the unique copy. The winner of the conflict resolution, and possibly the losers, report the conflict to the home node, which pairs conflict reports and issues forwarding instructions to assure that all requesting nodes eventually receive the requested data. If a requested cache line is either uncached or present only in the Shared state, the home node provides a copy of the cache node and resolves conflicts. In one embodiment, a blackout period after all responses until an acknowledgement message has been received allows all conflicting nodes to be aware of conflicts in which they are involved.

摘要翻译： 冲突解决技术提供一致性，使得如果每个节点在该节点已经做出其自己的请求之后监视所有请求，则冲突请求者中的至少一个可以检测所有冲突。 如果一行处于“独占”，“修改”或“转发”状态，则在保存唯一副本的节点处解决冲突。 冲突解决的胜利者以及可能的失败者将冲突报告给家庭节点，该家庭节点对冲突报告和发出转发指令，以确保所有请求节点最终都接收到所请求的数据。 如果所请求的高速缓存行未被缓存或仅在共享状态下存在，则家庭节点提供缓存节点的副本并解决冲突。 在一个实施例中，在接收到确认消息之后的所有响应之后的停电时段允许所有冲突节点都知道它们涉及的冲突。

公开(公告)号：US20110161451A1

公开(公告)日：2011-06-30

申请号：US13047496

申请日：2011-03-14

申请人： Herbert H. J. Hum ,  James R. Goodman ,  Robert H. Beers ,  Rajnish Ghughal

发明人： Herbert H. J. Hum ,  James R. Goodman ,  Robert H. Beers ,  Rajnish Ghughal

IPC分类号： G06F15/16

CPC分类号： G06F12/0831 ,  G06F12/0826 ,  G06F2212/622

摘要： A conflict resolution technique provides consistency such that all conflicts can be detected by at least one of the conflicting requestors if each node monitors all requests after that node has made its own request. If a line is in the Exclusive, Modified or Forward state, conflicts are resolved at the node holding the unique copy. The winner of the conflict resolution, and possibly the losers, report the conflict to the home node, which pairs conflict reports and issues forwarding instructions to assure that all requesting nodes eventually receive the requested data. If a requested cache line is either uncached or present only in the Shared state, the home node provides a copy of the cache node and resolves conflicts. In one embodiment, a blackout period after all responses until an acknowledgement message has been received allows all conflicting nodes to be aware of conflicts in which they are involved.

摘要翻译： 冲突解决技术提供一致性，使得如果每个节点在该节点已经做出其自己的请求之后监视所有请求，则冲突请求者中的至少一个可以检测所有冲突。 如果一行处于“独占”，“修改”或“转发”状态，则在保存唯一副本的节点处解决冲突。 冲突解决的胜利者以及可能的失败者将冲突报告给家庭节点，该家庭节点对冲突报告和发出转发指令，以确保所有请求节点最终都接收到所请求的数据。 如果所请求的高速缓存行未被缓存或仅在共享状态下存在，则家庭节点提供缓存节点的副本并解决冲突。 在一个实施例中，在接收到确认消息之后的所有响应之后的停电时段允许所有冲突节点都知道它们涉及的冲突。

公开(公告)号：US08171095B2

公开(公告)日：2012-05-01

申请号：US13047496

申请日：2011-03-14

申请人： Herbert H. J. Hum ,  James R. Goodman ,  Robert H. Beers ,  Rajnish Ghughal

发明人： Herbert H. J. Hum ,  James R. Goodman ,  Robert H. Beers ,  Rajnish Ghughal

IPC分类号： G06F15/16

CPC分类号： G06F12/0831 ,  G06F12/0826 ,  G06F2212/622

摘要： A conflict resolution technique provides consistency such that all conflicts can be detected by at least one of the conflicting requestors if each node monitors all requests after that node has made its own request. If a line is in the Exclusive, Modified or Forward state, conflicts are resolved at the node holding the unique copy. The winner of the conflict resolution, and possibly the losers, report the conflict to the home node, which pairs conflict reports and issues forwarding instructions to assure that all requesting nodes eventually receive the requested data. If a requested cache line is either uncached or present only in the Shared state, the home node provides a copy of the cache node and resolves conflicts. In one embodiment, a blackout period after all responses until an acknowledgement message has been received allows all conflicting nodes to be aware of conflicts in which they are involved.

摘要翻译： 冲突解决技术提供一致性，使得如果每个节点在该节点已经做出其自己的请求之后监视所有请求，则冲突请求者中的至少一个可以检测所有冲突。 如果一行处于“独占”，“修改”或“转发”状态，则在保存唯一副本的节点处解决冲突。 冲突解决的胜利者以及可能的失败者将冲突报告给家庭节点，该家庭节点对冲突报告和发出转发指令，以确保所有请求节点最终都接收到所请求的数据。 如果所请求的高速缓存行未被缓存或仅在共享状态下存在，则家庭节点提供缓存节点的副本并解决冲突。 在一个实施例中，在接收到确认消息之后的所有响应之后的停电时段允许所有冲突节点都知道它们涉及的冲突。