Checkpoint/resume/restart safe methods in a data processing system to establish, to restore and to release shared memory regions
US7376860B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2004 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | Jun 20, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1469
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is provided in which checkpointing operations are carried out in data processing systems running multiple processes which employ shared memory in a manner which preserves data coherence and integrity but which places no timing restrictions or constraints which require coordination of checkpointing operations. Data structures within local process memory and within shared memory provide the checkpoint operation with application level information concerning shared memory resources specific to at least two processes being checkpointed. Methods are provided for establishing, restoring and releasing shared memory regions that are accessed by multiple cooperating processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.