System and method for queuing of tasks in a multiprocessing system
US5940612A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1995 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Sep 27, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4881
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A procedure controls execution of priority ordered tasks in a multi-nodel data processing system. The data processing system includes a node with a software-controlled processor and a hardware-configured queue-controller. The queue-controller includes a plurality of priority-ordered queues, each queue listing tasks having an assigned priority equal to a priority order assigned to the queue. The queue-controller responds to a processor generated order to queue a first task for execution, by performing a method which includes the steps of: listing said first task on a first queue having an assigned priority that is equal to a priority of said first task; if a second task is listed on a queue having a higher assigned priority, attempting execution of the second task before execution of the first task; if no tasks are listed on a queue having a higher assigned priority than said first queue, attempting execution of a first listed task in the first queue means; and upon completion of execution of the task or a stalling of execution of the task, attempting execution of a further task on the first queue only if another order has not been issued to place a task on a queue having a higher a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.