Multiprocessor system shaving processor based idle state detecti

Details Multiprocessor system shaving processor based idle state detecti Multiprocessor system shaving processor based idle state detecti

1996-02-22

1999-02-02

Banankhan, Majid A.

395676, G06F 900

Patent

active

058677046

ABSTRACT:
The present invention provides a method for executing tasks in a multiprocessor system including a plurality of processors, each processor taking either an "idle" state and a "run" state, wherein the method includes the steps of: detecting, when a first processor among the plurality of processors that is executing a first task newly generates a second task, whether or not a second processor taking the "idle" state exists among the plurality of processors; assigning the second task, if a second processor taking the "idle" state is detected, to the second processor, so as to begin execution of the second task by the second processor, change the state of the second processor from the "idle" state to the "run" state, and store a flag having a first value indicating that the execution of the first task has not been suspended; and suspending, if no second processor taking the "idle" state is detected, the execution of the first task by the first processor, beginning execution of the second task by the first processor, and storing a flag having a second value indicating that the execution of the first task has been suspended.

REFERENCES:
patent: 4954945 (1990-09-01), Inoue
patent: 5159686 (1992-10-01), Chastain et al.
patent: 5404521 (1995-04-01), Murray
patent: 5604865 (1997-02-01), Lentz et al.
patent: 5640563 (1997-06-01), Carmon

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