Method and apparatus for dispatching tasks requiring short-durat

Details Method and apparatus for dispatching tasks requiring short-durat Method and apparatus for dispatching tasks requiring short-durat

1991-08-23

1993-10-26

Kriess, Kevin A.

Boots, shoes, and leggings

395700, 364280, 3642813, G06F 1516, G06F 1200

Patent

active

052573753

ABSTRACT:
An application, executing on a first processing element in a MP system without an asymmetric feature, issues an instruction requiring that feature to complete. A program check interruption gives control to interrupt handlers, which create a high-priority, non-preemptable work unit control block and enters the dispatcher to enqueue the work unit on a processor-related queue associated with a second processing element having the asymmetric feature. When the dispatcher executes in the second processing element, it executes the non-preemptable work unit, which transfers control to the application at the point of interruption. Subsequently the application has only whatever processor affinity obtained prior to the program check.

REFERENCES:
patent: 4638427 (1987-01-01), Martin
patent: 4843541 (1989-06-01), Bean et al.
patent: 5193172 (1993-03-01), Arai et al.

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