Basic HTML version of Foils prepared April 7,1995

Foil 14 What type of compiler is HPF ?

From Programming Paradigms B CRPC/MCNC Workshop -- April 10-13 1995. by Geoffrey C. Fox
HPF makes much greater use of runtime optimizations than the traditional sequential or parallel compiler
Fortran 77: Do 1 I=1,N 1 A(I) = FUNC(B(I), B(I +/- 1), C(I), C(I +/- 1), .....)
Traditionally arrange access to these elements in COMPILER
HPF: A=FUNC(B,C)
Invoke ALREADY OPTIMIZED parallel implementation of FUNC In many cases, HPF compiler need not know anything about parallelization except interfaces, data layout etc.

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