05887146 is referenced by 81 patents and cites 6 patents.

A very fast, memory efficient, highly expandable, highly efficient CCNUMA processing system based on a hardware architecture that minimizes system bus contention, maximizes processing forward progress by maintaining strong ordering and avoiding retries, and implements a full-map directory structure cache coherency protocol. A Cache Coherent Non-Uniform Memory Access (CCNUMA) architecture is implemented in a system comprising a plurality of integrated modules each consisting of a motherboard and two daughterboards. The daughterboards, which plug into the motherboard, each contain two Job Processors (JPs), cache memory, and input/output (I/O) capabilities. Located directly on the motherboard are additional integrated I/O capabilities in the form of two Small Computer System Interfaces (SCSI) and one Local Area Network (LAN) interface. The motherboard includes main memory, a memory controller (MC) and directory DRAMs for cache coherency. The motherboard also includes GTL backpanel interface logic, system clock generation and distribution logic, and local resources including a micro-controller for system initialization. A crossbar switch connects the various logic blocks together. A fully loaded motherboard contains 2 JP daughterboards, two PCI expansion boards, and up to 512 MB of main memory. Each daughterboard contains two 50 MHz Motorola 88110 JP complexes, having an associated 88410 cache controller and 1 MB Level 2 Cache. A single 16 MB third level write-through cache is also provided and is controlled by a third level cache controller.

Title
Symmetric multiprocessing computer with non-uniform memory access architecture
Application Number
8/695556
Publication Number
5887146
Application Date
August 12, 1996
Publication Date
March 23, 1999
Inventor
Simon N Yeung
Waltham
MA, US
Doug J Tucker
Northboro
MA, US
Michael Sporer
Wellesley
MA, US
Art A Sherman
Maynard
MA, US
Tom V Radogna
Westboro
MA, US
Rob J Pike
Northboro
MA, US
Andrea Heyda
Acton
MA, US
Barry E Gillott
Fairport
NY, US
Joseph Cox
Middleboro
MA, US
Pat J Weiler
Northboro
MA, US
Rob P Valentine
Auburn
MA, US
Liz M Truebenbach
Sudbury
MA, US
Phil J Roux
Holliston
MA, US
Jeff S Kimmell
Chapel Hill
NC, US
David L Keating
Holliston
MA, US
Michael F Hunt
Ashland
MA, US
Dan R Huck
Shrewsbury
MA, US
James M Guyer
Northboro
MA, US
Robert G Gelinas
Westboro
MA, US
William F Baxter
Holliston
MA, US
Agent
Sewell P Bronstein
David D Lowry
Brian L Michaelis
Assignee
Data General Corporation
MA, US
IPC
G06F 1/12
G06F 13/00
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