Basic HTML version of Foils prepared October 22 1997

Foil 88 HPF probably cannot express well

From GCF Talk U - Lewis/NASA 3/9/92 Mardi Gras Conference on Concurrent Computing in Physical Sciences -- February 18, 1993. by Geoffrey C. Fox
Multiple Phase problems such as
  • Particle in the cell
  • Unstructured Multigrid
Need to express "alignment" between phases (different levels of multigrid, particles and grid for PIC) and then optimize distribution and redistribution between phases.
Irregular problems of this type are only suitable for MIMD.
Very irregular cases with mismatches between phases perform poorly even on MIMD.

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