Basic HTML version of Foils prepared August 7 98

Foil 6 Methods of Avoiding Sequence Association

From DoD HPF Training -- 6. HPF2 DoD Training and Others -- 1995-98. by Chuck Koelbel -- Rice University
1 Just say "No!"
  • EQUIVALENCE was never a good idea for new HPF codes
  • Included for ease of porting F77 codes, with debatable benefits
2 For new codes:
  • Always declare arrays to be their natural rank
  • Use ALLOCATABLE to make arrays their natural size
  • Use MODULE for global arrays, or pass as explicit arguments
3 For porting codes:
  • Top-down conversion of subroutines
  • If subroutine really needs EQUIVALENCE, it may be better as an EXTRINSIC
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