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US 6,662,276 B2Granted
Storing directory information for non uniform memory architecture systems using processor cache
AssigneeIntel Corporation
InventorIoannis T. Schoinas
Life of this patent
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Abstract
An embodiment of the present invention includes a cache and a controller in a non uniform memory architecture (NUMA) system. The cache stores a plurality of entries, each of which contains an entry type indicating if the entry is one of a normal entry and a directory entry. The controller processes an access request from a processor for a memory block using the plurality of entries.
Claims30
An apparatus comprising:
- a cache storing a plurality of entries, each of the plurality of entries containing an entry type indicating if the entry is one of a normal entry and a directory entry;
- and
- a controller coupled to the cache to process an access request for a memory block using the plurality of entries, the access request coming from a processor in a non uniform memory architecture (NUMA) system.
A method comprising:
- storing a plurality of entries in a cache, each of the plurality of entries containing an entry type indicating if the entry is one of a normal entry and a directory entry;
- and
- processing an access request for a memory block using the plurality of entries by a controller, the access request coming from a processor in a non uniform memory architecture (NUMA) system.
A non-uniform memory architecture (NTJMA) system comprising:
- an owner node having copy of a memory block;
- and
- a home node coupled to the requesting node and the owner node to process an access request for the memory block from a processor, the home node having a cache subsystem, the cache subsystem comprising:
- a cache storing a plurality of entries, each of the plurality of entries containing an entry type indicating if the entry is one of a normal entry and a directory entry, and
- a controller coupled to the cache to process the access request for a memory block using the plurality of entries.
2 more elements
Dependencies are inferred from the claim text.