Multiprocessor I/O request control system forming device drive queue and processor interrupt queue from rows and cells of I/O request table and interrupt request table
US5507032A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1993 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Dec 2, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/17
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An input/output request control system in a multi-processor system includes a plurality of information processing modules (PM). The system comprises a plurality of input/output adapters (ADP) commonly used by each of said information processing modules and a plurality of input/output devices (DVC) divided into groups, each group controlled by one of the input/output adapters. An input/output request maintaining table (LDVC) manages input/output requests from respective information processing modules for each of the input/output devices controlled by said information processing modules by using a queue. Input/output requests from respective information processing modules are processed based on the state of the input/output request maintaining table and the input/output devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.