Geometric Array Processor board

From: Bob Shannon <>
Date: Mon Mar 11 19:30:41 2002

Having worked on parallel processors such as the Connection Machine, and
more recently the Blue Ice Ultra boards, all I can say is...

Freeking cool find!

Joe wrote:

> Does anyone know much about these? I picked up TWO of these cards today
> and each one has 144 NCR45CG72 ICs on it. It looks ike EACH IC has 72
> microproccesors in it. That makes a total of 20,736 processors!!! Here's a
> bit that I found while searching the net. IN FACT, these may be the exact
> cards that this guy is referring to since much of the stuff that I find
> does orginate at MMC.
> Joe
> 9. Geometric Arithmatic Parallel Processor {GAPP}, a real time vision
> recognition, dynamically partitionable, dynamically fault reconfigurable,
> array processor (SIMD) for Martin Marietta in Orlando. Each IC contained
> 72 microprocessors, composed of a single TCU and multiple ALU-register
> sets. Array grows in X and Y dimensions to match a required image array of
> pixels matrix, and decimates in time to allow fault reconfiguration and
> price/performance options. First successful SIMD VLSI. First successful
> real time image recognition. Responsibility included addition to
> instruction set {If then, case, etc based on if any, if all, if none},
> redesign for performance enhancement, and design of fault reconfiguration
> switching at internal IC level and external array coordination.
> Non-classified version is the 45CG72 from NCR.
Received on Mon Mar 11 2002 - 19:30:41 GMT

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