System for coordinating execution of multiple concurrent channel

Details System for coordinating execution of multiple concurrent channel System for coordinating execution of multiple concurrent channel

1993-11-08

1996-12-10

Lee, Thomas C.

Boots, shoes, and leggings

395821, 395825, 395840, 395872, 395873, 395877, 395879, 3642362, 364DIG1, G06F 1300

Patent

active

055840396

ABSTRACT:
Coupling execution of channel programs without central processing unit supervision controls data transfer between input/output devices through a main storage of a data processing system. In one embodiment, channel programs to be coupled are generated by a program running on a data processing system central processing unit. The channel program on the input subchannel includes channel commands referencing the output subchannel and operating to cause resumption of the output subchannel. The channel program on the output subchannel includes suspend channel commands directed to itself which correspond to the resume channel commands in the channel program on the input subchannel. In alternative embodiments values in channel commands can change values in, or reference, control blocks to effect execution of other channel programs.

REFERENCES:
patent: 3400371 (1968-09-01), Amdahl et al.
patent: 4040037 (1977-08-01), Lawlor
patent: 4316245 (1982-02-01), Luu et al.
patent: 4374409 (1983-02-01), Bienvenu et al.
patent: 4374415 (1983-02-01), Cormier et al.
patent: 4394725 (1983-07-01), Bienvenu et al.
patent: 4471457 (1984-09-01), Videki, II
patent: 4633387 (1986-12-01), Hartung et al.
patent: 4635191 (1987-01-01), Boning
patent: 4811306 (1989-03-01), Boning et al.
patent: 4837680 (1989-06-01), Crockett et al.
patent: 5317739 (1994-05-01), Elko et al.
patent: 5367661 (1994-11-01), Hough et al.
patent: 5369750 (1994-11-01), Inoue et al.
"Host I/O Data Management Enhanced by Unique CCW Coding", IBM Technical Disclosure Bulletin, New York, U.S., Sep., 1977, pp. 1509-1512.
"Partial Command Retry", IBM Technical Disclosure Bulletin, New York, U.S., Dec., 1978, p. 3000.
"Post Suspend Resume", IBM Technical Disclosure Bulletin, New York, U.S., Feb., 1981, pp. 4228-4230.
"Semi-Synchronous Cached DASD", IBM Technical Disclosure Bulletin, New York, U.S., Oct., 1985, pp. 1885-1888.
"Interrupt-Free Interprocessor Communications", IBM Technical Disclosure Bulletin, New York, U.S., Jun., 1986, pp. 273-275.
"High Performance Interprocessor Communications", IBM Technical Disclosure Bulletin, New York, U.S., Jun., 1986, pp. 225-226.
"Signal Delivery Protocol", IBM Technical Disclosure Bulletin, New York, U.S., Apr., 1991, pp. 304-305.

Affiliated with

Also associated with

Rating

System for coordinating execution of multiple concurrent channel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for coordinating execution of multiple concurrent channel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for coordinating execution of multiple concurrent channel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-432644