Basic HTML version of Foils prepared 23 August 1998

Foil 57 Communication

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)
Identify communication requirements
  • If computation in one task requires data located in another, communication is needed
Example: finite difference computation
Must communicate with each neighbor
Xi = (Xi-1 + 2*Xi + Xi+1)/4
Partition creates
one task per point
I=2 above

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