Multiprocessing system comparing information copied from extended storage before and after processing for serializing access to shared resource
US5251318A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1989 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Aug 23, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/1631
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a composite data processing system including a plurality of data processing units each containing one or a plurality of instruction processors and a main storage accessed by the instruction processor, and an extended storage shared by the data processing units and accessed by each of the instruction processors, the present invention provides a composite data processing system characterized by including a means for referring to a designated area on the extended storage by each of the instruction processors, a means for rewriting the area described above in accordance with the value of part of the entire part of the area based on the result of a referring operation and a means for generating an instruction for executing the operations from the reference operation to the rewrite operation as an inseparable operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.