Method and apparatus for dynamic work reassignment among asymmet

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364DIG1, 3642303, 3642813, 3642818, 3642646, G06F 1516, G06F 930

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active

053013247

ABSTRACT:
A tightly-coupled processor complex comprises two or more processors, the complex being asymmetric in that a feature available on one processor is not available on at least one other processor. A work selection mechanism selects one of a set of one or more ready work units, each capable of execution on one or more of the asymmetric processors. A processor set identification function identifies an "indirect idle" set of processors which can participate as hosts in work reassignment to make use of a previously idle processor, and identifies an "indirect bump" set of processors which can participate as hosts in work reassignment to displace a lowest priority work unit previously executing - any work reassignment being initiated by an assigner means and comprising an optimized number of work reassignment steps reassigning work among one of the processor sets to accomplish a related assignment goal (making use of a previously idle processor, or displacing a lowest priority work unit).

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patent: 4638427 (1987-01-01), Martin
patent: 4943912 (1990-07-01), Aoyama et al.
patent: 5031089 (1991-07-01), Liu et al.

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