Basic HTML version of Foils prepared August 7 98

Foil 21 Implementation of HPF 2 Parallel Features (cont.)

From DoD HPF Training -- 6. HPF2 DoD Training and Others -- 1995-98. by Chuck Koelbel -- Rice University
1 RESIDENT
  • Do not generate communication for the RESIDENT expressions (and look for logically equivalent expressions as well)
  • If no expression is given, then no communication for any variable is needed
    • Allows INDEPENDENT with CALL
2 TASK_REGION
  • Shared memory: Use barrier synchronization for tasks entering each ON block; also synchronize on shared data access outside ON blocks
  • Distributed memory: Processor groups communicate only internally within an ON block (use ordinary communication), communicate with other tasks at ON boundaries (use group communication
in Table To:

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