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

Task communicator for multiple computer system

Patent 4333144 Issued on June 1, 1982. Estimated Expiration Date: Icon_subject February 5, 2000. 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

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Inventors

Assignee

Application

No. 06/118813 filed on 02/05/1980

US Classes:

718/102, Process scheduling718/107, Multitasking, time sharing719/310MISCELLANEOUS

Examiners

Primary: Shaw, Gareth D.
Assistant: Chan, Eddie P.

Attorney, Agent or Firm

International Classes

G06F 9/48 (20060101)
G06F 9/46 (20060101)

Abstract

A task communicator for each computer in a multiple computer system is disclosed. The task communicator provides communication of data values between cooperating tasks executed by different computers. The task communicator comprises a data values table (804) storing the current data values required for the execution of each task assigned to its computer. A store data value module (802) which stores the data values received from the other computers in the data values table. A task dispatcher (806) which copies the data values required for the execution of a selected task into a task input table (810). A release task module (814), which releases for execution the identified task and data values stored in the task input table. A task output table (812) storing the values of the data resulting from the execution of each task by its own computer. A task results message sender (818) which sends to all of the computers in the system messages containing the new data values stored in the task output table by the executed task.

Other References

  • Katsuki et al., "Pluribus-An Operational Fault-Tolerant Multiprocessor", Proceedings of the IEEE, vol. 66, No. 10, 10/78, pp. 1146-1159
  • Winsley et al., "Sift: Design and Analysis of a Fault-Tolerant Computer for Aircraft Control", Proceedings of the IEEE, vol. 66, No. 10, 10/78, pp. 1240-1255
  • Jane Rumbaugh, "A Data Flow Multiprocessor", IEEE Transactions on Computers, vol. C-26, No. 2, 2/1977, pp. 138-146
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