Synchronization of fault-tolerant parallel processing systems
US4937741A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1988 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Apr 28, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1683
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for synchronizing the operation of a plurality of redundant processors forming groups thereof in which a frame of operation is defined as a time period during which a selected number of processing events occurs. For each processor, the performance of a first one of such events specifies the start of a frame and the performance of the last one of such events specifies the end of a frame. When the final event is performed by the last-to-perform of the processors of a group, the operations of all the processors of the group are then synchronized to start the next frame of operation at substantially the same time. The processors have execution rates which lie within the specified range thereof, the processors must perform their final events within a specified time period, and the processors of a group are arranged so as to start a frame of operation within another specified time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.