Basic HTML version of Foils prepared August 29 98

Foil 4 OpenMP (2)

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.)
1 Fork-join model
  • Execution starts with one thread of control
  • Parallel regions fork off new threads on entry
  • Threads join back together at the end of the region
2 Shared memory
  • (Some) Memory can be accessed by all threads
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