Basic HTML version of Foils prepared August 7 98

Foil 15 PURE Functions and FORALL

From DoD HPF Training -- 3. Parallel Constructs in HPF DoD Training and Others -- 1995-98. by Chuck Koelbel -- Rice University
PURE functions are the only ones that can be invoked from a FORALL
Safe to do this because they have no side effects
Useful to do this because there are things you cannot do (directly) in a FORALL
  • Conditionals and iteration
    • E.g., Do point-wise iteration this way
  • Local variables
    • E.g., Handle temporaries this way

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