Message transmission among processing units using interrupt control technique
US5835779A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1996 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Mar 15, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/546
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The transmission of messages among multiple processors is controlled by the use of token and message interrupts. A token interrupt must be received from the processor sought to perform message processing. Failure to receive such a token interrupt prohibits requesting processors from making processing demands, i.e. sending a message interrupt, to the processor. Message interrupts, which may only be transmitted following receipt of a token interrupt, identify commands and user messages to be processed by a receiving processor. This permits instructions and multiple messages to be handled by a processor based on receipt of a single message interrupt. This technique also allows a processor under a temporary heavy load to defer the handling of other processing requests by delaying the transmission of a token interrupt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.