Architecture support of best-effort atomic transactions for multiprocessor systems
US7350034B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2005 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Jun 17, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30087
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An atomic transaction includes one or more memory access operations that are completed atomically. A Best-Effort Transaction (BET) system makes its best effort to complete each atomic transaction without guaranteeing completion of all atomic transactions. When an atomic transaction is aborted, BET may provide software with appropriate runtime information such as cause of the abortion. With proper coherence layer enhancements, BET can be implemented efficiently for multiprocessor systems, using caches as buffers for data accessed by atomic transactions. Furthermore, with appropriate fairness support, forward progress can be guaranteed for atomic transactions that incur no buffer overflow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.