Coherency controller management of transactions

Details Coherency controller management of transactions Coherency controller management of transactions

2007-03-20

2007-03-20

Sough, Hyund (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

Reexamination Certificate

active

10739698

ABSTRACT:
The management of transactions received by a coherency controller is disclosed. A method of an embodiment of the invention is performed by a coherency controller of a plurality of coherency controllers of a node that has a plurality of sub-nodes. The coherency controller receives a transaction from one of the sub-nodes of the node. The transaction may relate to another sub-node of the node. However, the coherency controller nevertheless processes the transaction without having to send the transaction to another coherency controller of the node, even though the sub-node from which the transaction was received is different than the sub-node to which the transaction relates. The plurality of coherency controllers is thus shared by all of the plurality of sub-nodes of the node.

REFERENCES:
patent: 6378029 (2002-04-01), Venkitakrishnan et al.
patent: 6859864 (2005-02-01), Khare et al.
patent: 6920581 (2005-07-01), Bigbee et al.
patent: 2004/0088523 (2004-05-01), Kessler et al.

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