Basic HTML version of Foils prepared August 29 98

Foil 27 Walking the Key Loop Nest

From Designing and Building Parallel Programs 2: openMP Shared Memory Programming Language DoD Modernization Tutorial -- 1995-1998. by Ian Foster, Gina Goff, Ehtesham Hayder, Chuck Koelbel(Some foils prepared by Kuck & Associates, Inc.)


Usually the outermost parallel loop
  • Ignore timestep and convergence loops
  • Ignore loops with few iterations
  • Ignore loops that call unimportant subroutines
Don't be put off by --
  • Loops that write shared data
  • Loops that step through linked lists
  • Loops with I/O



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