Type 1, 2 and 3 retry and checkpointing

Details Type 1, 2 and 3 retry and checkpointing Type 1, 2 and 3 retry and checkpointing

1991-08-29

1993-12-07

Canney, Vincent P.

Excavating

395375, 371 12, G06F 946

Patent

active

052690172

ABSTRACT:
An improved error recovery system in which all operations which the Central Processor performs are categorized into one of a plurality of recovery types. The determination of category is made based on which architected and machine dependent facilities they manipulate and the manner in which the facilities are manipulated. This classification of instructions into types allows for the amount of checkpoint data to be minimized while allowing recovery to be generalized into broad algorithms instead of handling each operation independently. Furthermore, by applying this classification technique to various phases of execution (recovery windows) of instructions which modify system facilities before they complete, these instructions can also be retried with a minimum of hardware and algorithms.

REFERENCES:
patent: 4044337 (1977-08-01), Hicks et al.
patent: 4589087 (1986-05-01), Auslander et al.
patent: 4703481 (1987-10-01), Fremont
patent: 4901232 (1990-02-01), Harrington et al.
patent: 4901233 (1990-02-01), Liptay
patent: 4912707 (1990-03-01), Kogge et al.
patent: 5179702 (1993-01-01), Spix et al.
IBM TDB, vol. 27, No. 5, Oct. 1984, pp. 2757-2759, "Exception Handling . . . Machine" by W. Brantley et al.
IBM TDB vol. 27, No. 4A, Sep., 1984, pp. 2231-2232, "Checkpoint Register" by J. A. Wetzel.
IBM TDB vol. 26, No. 9, Feb. 1984, pp. 4840-4841, "Central Processor Retry" by E. J. Annunziata et al.
IBM TDB vol. 25, No. 11B, Apr. 1983, pp. 5960-5961, "Shared Cacher In A Checkpoint Environment" by Weiss et al.

Affiliated with

Also associated with

Rating

Type 1, 2 and 3 retry and checkpointing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Type 1, 2 and 3 retry and checkpointing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Type 1, 2 and 3 retry and checkpointing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2022104