Device for enhancing the performance of a real time executive kernel associated with a multiprocessor structure that can include a large number of processors

Patent 5295265 Issued on March 15, 1994. Estimated Expiration Date:

June 4, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Application

No. 894378 filed on 06/04/1992

US Classes:

718/100, TASK MANAGEMENT OR CONTROL712/244, Exeception processing (e.g., interrupts and traps)718/101, Batch or transaction processing718/103, Priority scheduling718/107Multitasking, time sharing

Examiners

Primary: Kriess, Kevin A.

Attorney, Agent or Firm

Browdy and neimark

Foreign Patent References

0264317 EP. 09/12/1987

International Class

G06F 009/40

Foreign Application Priority Data

1991-06-04 FR

Abstract

A device for enhancing the performance of a real time executive kernel associated with a multiprocessor structure possibly comprising a large number of processors comprises a real time operator behaving, as seen from the processor of the structure, like a memory area. The real time operator sends and receives data to be processed, generates communication control signals and manages the real time context of the processors of the structure. It comprises a plurality of identical hardwired real time operator circuits accessible simultaneously by the processors of the structure but each associated with one only of said processors. The device can be used even if the structure comprises a large number of processors.

Other References

Microprocessing and Microprogramming, vol. 22, No. 1, Jan. 1988, Amerterdam, NL, pp. 11-21; M. P. Papazoglou et al.: A versatile kernel proposal for a multimicroprocessor . . . ; p. 13, colonne 2 ligne 10
Software and Microsystems, vol. 1, No. 5, Aug. 1982, London; pp. 128-134; Shoja et al.; A control kernel to support ada intertask communication on a distributed muliprocessor comperuter system
Operating Systems Review (SIGOPS), vol. 23, No. 3, Jul. 1989; New York, pp. 158-172; Holmes et al; A designer's perspective of the hawk multiprocessor operating system kerne