Data-maintenance method of distributed shared memory system
US6931496B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2003 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Feb 16, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/2542
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A distributed shared memory (DSM) system includes at least a first and a second nodes. The first node includes an external cache for storing a data from a local memory of the second node and at least two processors optionally accessing the data from the external cache. Whether the data has been modified into a modified data by a first certain one of the at least two processors is first determined. If positive, whether a second certain one of the at least two processors is allowed to share the modified data is further determined. If the second certain processor is allowed to share the modified data, it may directly request the modified data from the first certain processor via a bus inside the first node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.