Basic HTML version of Foils prepared 13 February 2000

Foil 20 Communication Must be Reduced

From Methodology of Computational Science CPS615 Computational Science -- Spring Semester 2000. by Geoffrey C. Fox
4 by 4 regions in each processor
  • 16 Green (Compute) and 16 Red (Communicate) Points
8 by 8 regions in each processor
  • 64 Green and "just" 32 Red Points
Communication is an edge effect
Give each processor plenty of memory and increase region in each machine
Large Problems Parallelize Best

© Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

If you have any comments about this server, send e-mail to webmaster@npac.syr.edu.

Page produced by wwwfoil on Thu Mar 16 2000