Apparatus and method for maintaining data coherence within a cluster of symmetric multiprocessors
US6341339B1 · kind B1 · utility
27Cited by
24References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1998 |
| Grant date | Jan 22, 2002 |
| Priority date | — |
| Expiry date | Mar 26, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99952
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses an apparatus and method for maintaining the coherence of data within a shared memory network including a plurality of nodes. The system utilizes processors monitoring the occurrence of particular processing events within a local memory storage area. Upon the detection of events indicating the change of status of a particular group of data, a comparison is made between a modified copy of the group of data and a clean copy of the group of data to detect any modifications made to the group of data. These modifications are entered into the clean copy of the group of data and processing continues.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.