Basic HTML version of Foils prepared 24 August 98

Foil 58 Inevitability of Parallel Computing

From Master Foilset for CPS615 Introduction -- Material from Culler and Koelbel Computational Science for Simulations -- Fall Semester 1998. by Geoffrey C. Fox, Nancy McCracken


Application demands: Our insatiable need for computing cycles
  • Scientific computing: CFD, Biology, Chemistry, Physics, ...
  • General-purpose computing: Video, Graphics, CAD, Databases, TP...
Technology Trends
  • Number of transistors on chip growing rapidly
  • Clock rates expected to go up only slowly
Architecture Trends
  • Instruction-level parallelism(ILP) valuable but limited
  • Coarser-level parallelism, as in Multiprocessors, the most viable approach
Economics
Current trends:
  • Today's microprocessors have multiprocessor(MP) support
  • Servers and workstations becoming MP: Sun, SGI, DEC, COMPAQ!...
  • Tomorrow's microprocessors are multiprocessors



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