Method for checkpointing in computer system under distributed processing environment
US5802267A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Sep 10, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1407
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A scheme for checkpointing and a computer system capable of realizing the distributed checkpointing for processes which carry out the inter-process communications, while shortening a stopping time of the processes due to the distributed checkpointing. The inter-process communications of each process are stopped while continuing the normal processing of each process first, and a checkpointing processing for each process is executed when the inter-process communications of all processes are stopped. Alternatively, the inter-computer type inter-process communications of each process are stopped while continuing the intra-computer type inter-process communications and the normal processing of each process first, and a checkpointing processing for each process is executed while stopping the intra-computer type inter-process communications of each process when the inter-computer type inter-process communications of all processes are stopped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.