HTML version of Scripted Foils prepared 11 November 1996

Foil 10 Comments on Special Purpose Devices

From CPS615-Lecture on Computer Architectures and Networks Delivered Lectures of CPS615 Basic Simulation Track for Computational Science -- 12 September 96. by Geoffrey C. Fox *
Secs 254.8
1 One example is an Associative memory - SIMD or MIMD or content addressable memories
2 This is an an example of a special purpose "signal" processing machine which can in fact be built from "conventional" SIMD or "MIMD" architectures
3 This type of machine is not so popular as most applications are not dominated by computations for which good special purpose devices can be designed
4 If only 10% of a problem is say "track-finding" or some special purpose processing, then who cares if you reduce that 10% by a factor of 100
  • You have only sped up the system by a factor 1.1 not by 100!
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