Method and system of determining the execution point of programs executed in lock step
US7730350B2 · kind B2 · utility
3Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2006 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Jul 9, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1691
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system of determining the execution point of programs executed in lock step. At least some of the illustrative embodiments are computer systems comprising a first processor that executes a program, and a second processor that executes a duplicate copy of the program in lock step with the first processor. After receipt of a duplicate copy of an interrupt request by each processor, the first processor determines the execution point in its program relative to the execution point of the duplicate copy of the program executed by the second processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.