Multiprocessing system including an enhanced blocking mechanism for read-to-share-transactions in a NUMA mode
US5983326A · kind A · utility
50Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1996 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Jul 1, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/2542
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multiprocessing system having a plurality of processing nodes interconnected by an interconnect network. A home agent is configured to service multiple requests simultaneously. A transaction blocking unit is coupled to a home agent control unit for preventing the servicing of a pending coherent transaction request if another transaction request corresponding to the same coherency unit is already being serviced by the home agent control unit. The transaction blocking unit is further configured such that read-to-share transaction requests in a NUMA mode do not block other read-to-share transaction requests in the NUMA mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.