Methods and apparatus for a coherence transformer for connecting

Details Methods and apparatus for a coherence transformer for connecting Methods and apparatus for a coherence transformer for connecting

1996-07-01

1999-01-12

Swann, Tod R.

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

711210, 711147, 711146, 711151, G06F 1200

Patent

active

058601090

ABSTRACT:
An apparatus for facilitating the sharing of memory blocks, which has local physical addresses at a computer node, between the computer node and an external device. The apparatus includes snooping logic configured for coupling with a common bus of the computer node. The snooping logic is configured to monitor, when coupled to the common bus, memory access requests on the common bus. There is also included a snoop tag array coupled to the snooping logic. The snoop tag array includes tags for tracking all copies of a first plurality of memory blocks of the memory blocks cached by the external device. Further, there is included a protocol transformer logic coupled to the snooping logic for enabling the apparatus, when coupled to the external device, to communicate with the external device using a protocol suitable for communicating with the external device.

REFERENCES:
patent: 5182801 (1993-01-01), Asfour
patent: 5283886 (1994-02-01), Nishii et al.
patent: 5303362 (1994-04-01), Butts, Jr. et al.
patent: 5522045 (1996-05-01), Sandberg
patent: 5522058 (1996-05-01), Iwasa et al.
patent: 5588131 (1996-12-01), Borrill
patent: 5590308 (1996-12-01), Shih
patent: 5634110 (1997-05-01), Laudon et al.
patent: 5644753 (1997-07-01), Ebrahim et al.
Lovett, et al., "Sting: A CC-NUMA Computer Iystem for the Commercial Marketplace", Sequent Computer Sytems, Inc., 15450 SW Koll Parkway, Beaverton, Oregon 97006, XP 000592195, ISCA '96 May 1996 PA, USA.
Iwasa, et al., "SSM-MP: More Scalability in Shared-Memory MultiProcessor", Information and Communication Systems Laboratory, Toshiba Corporation, 2-9 Suehiro-cho Ome-shi Tokyo 198 Japan, 1995 IEEE.
Lenoski, et al., "The Stanford Dash Multiprocessor", 25 (1992) Mar., No. 3, Los Alamitos, CA US.
Krafka, et al., "An Empirical Evaluation of Two Memory-Efficient Directory Methods", Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, 1990 IEEE.

Affiliated with

Also associated with

Rating

Methods and apparatus for a coherence transformer for connecting does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and apparatus for a coherence transformer for connecting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for a coherence transformer for connecting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1525166