U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Technique for parallel synchronization

Patent 4989131 Issued on January 29, 1991. Estimated Expiration Date: Icon_subject July 26, 2008. 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.

Patent References

Multidimensional parallel access computer memory system
Patent #: 4051551
Issued on: 09/27/1977
Inventor: Lawrie ,   et al.

Scientific processor
Patent #: 4101960
Issued on: 07/18/1978
Inventor: Stokes ,   et al.

Arrays of machines such as computers
Patent #: 4247892
Issued on: 01/27/1981
Inventor: Lawrence

Synchronous and conditional inter-program control apparatus for a computer system
Patent #: 4257096
Issued on: 03/17/1981
Inventor: McCullough ,   et al.

Logic simulation machine
Patent #: 4306286
Issued on: 12/15/1981
Inventor: Cocke ,   et al.

Double redundant processor
Patent #: 4358823
Issued on: 11/09/1982
Inventor: McDonald ,   et al.

Array processor architecture connection network
Patent #: 4365292
Issued on: 12/21/1982
Inventor: Barnes ,   et al.

Accelerator processor for a data processing system
Patent #: 4395758
Issued on: 07/26/1983
Inventor: Helenius ,   et al.

Array processor architecture
Patent #: 4412303
Issued on: 10/25/1983
Inventor: Barnes ,   et al.

Extra stage cube
Patent #: 4523273
Issued on: 06/11/1985
Inventor: Adams, III ,   et al.

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Inventor

Application

No. 224846 filed on 07/26/1988

US Classes:

712/203, Multiprocessor instruction711/150Simultaneous access regulation

Examiners

Primary: Eng, David Y.

Attorney, Agent or Firm

Foreign Patent References

  • 2178572A GB. 02/13/1987

International Class

G06F 013/00

Abstract

A parallel synchronization technique utilizing a combining network in which two processors synchronize by having one processor suspend operation while the other processor becomes the agent for the one processor, while continuing to operate on its own behalf. This reduces the access requests and subsequent contention caused by multiple concurrent requests to a common variable.

Other References

  • Gottlieb et al., "The NYU Ultra-Computer-Designing a MIMD, Shared Memory Parallel Machine", IEEE Trans. Comp., pp. 175-189, Feb. 1983
  • Yew et al., "Distributing Hot-Spot Addressing in Large-Scale Multiprocessors", IEEE Trans. on Computers, vol. C-36, pp. 388-395, 1987
  • DeMilt, "Inter-Quad Synchronization System for Modular Processing Systems", IBM Technical Disclosure Bulletin-vol. 16, No. 2, Jul. 1973, pp. 671-67
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