Periodic non-intrusive diagnosis of lockstep systems
US10331532B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2017 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Feb 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/805
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Aspects disclosed herein relate to periodic non-intrusive diagnosis of lockstep systems. An exemplary method includes comparing execution of a program on a first processing system of the plurality of processing systems and execution of the program on a second processing system of the plurality of processing systems using a first comparator circuit, comparing the execution of the program on the first processing system and the execution of the program on the second processing system using a second comparator circuit, and running a diagnosis program on the second comparator circuit while the comparing using the first comparator circuit is ongoing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.