发明名称 |
NON-UNIFORM MEMORY ACCESS (NUMA) DATA PROCESSING SYSTEM HAVING SHARED INTERVENTION SUPPORT |
摘要 |
A non-uniform memory access (NUMA) computer system includes first and second processing nodes that are each coupled to a node interconnect. The first processing node includes a system memory and first and second processors that each have a respective one of first and second cache hierarchies, which are coupled for communication by a local interconnect. The second processing node includes at least a system memory and a third processor having a third cache hierarchy. The first cache hierarchy and the third cache hierarchy are permitted to concurrently store an unmodified copy of a particular cache line in a Recent coherency state from which the copy of the particular cache line can be sourced by shared intervention. In response to a request for the particular cache line by the second cache hierarchy, the first cache hierarchy sources a copy of the particular cache line to the second cache hierarchy by shared intervention utilizing communication on only the local interconnect and without communication on the node interconnect.
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申请公布号 |
CA2295403(A1) |
申请公布日期 |
2000.08.10 |
申请号 |
CA20002295403 |
申请日期 |
2000.01.13 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
GLASCO, DAVID B.;DEAN, MARK E.;CARPENTER, GARY D. |
分类号 |
G06F12/08;(IPC1-7):G06F15/173 |
主分类号 |
G06F12/08 |
代理机构 |
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主权项 |
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地址 |
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