Basic HTML version of Foils prepared 23 August 1998

Foil 29 Shared Memory MIMD Multiprocessor

From CPS615-Introduction-Course,Driving Technology and HPCC Current Status and Futures CPS615 Basic Simulation Track for Computational Science -- Fall Semester 98. by Geoffrey C. Fox, (Some Culler, Koelbel material)


Processors access shared memory via bus
Low latency, high bandwidth
Bus contention limits scalability
Search for scalability introduces locality
  • Cache (a form of local memory)
  • Multistage architectures (some memory closer)
Examples: Cray T90, SGI Power Challenge, Sun



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