Basic HTML version of Foils prepared August 7 98

Foil 3 Data-Parallel Statements

From DoD HPF Training -- 3. Parallel Constructs in HPF DoD Training and Others -- 1995-98. by Chuck Koelbel -- Rice University
Data parallelism emphasizes having many fine-grain operations, such as computations on every element of an array
HPF has several ways to exploit data parallelism:
  • Array expressions: Taken from Fortran 90
  • FORALL: Tightly-coupled parallel execution based on the structure of an index space
    • PURE: Procedures without side effects that may be called in FORALL
  • INDEPENDENT: Assertion that iterations do not interfere with each other
  • HPF library and intrinsics: Extended from Fortran 90

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