Basic HTML version of Foils prepared August 29 98

Foil 41 Choosing & Placing Synchronization

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.)
Finding variables that need to be synchronized
Two frequently used types
  • Critical/ordered sections: small updates to shared structures
  • Barriers: delimit phases of computation
Doing reductions

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