Basic HTML version of Foils prepared August 7 98

Foil 42 Why Use EXTRINSIC Procedures?

From DoD HPF Training -- 3. Parallel Constructs in HPF DoD Training and Others -- 1995-98. by Chuck Koelbel -- Rice University
Access to other programming languages and paradigms
  • HPF_SERIAL: Sequential execution
    • For example, interfacing with graphics libraries
  • HPF_LOCAL: Single Program Multiple Data (SPMD) paradigm
  • HPF_CRAFT: Cray native programming language (HPF 2.0)
Expressiveness
  • Some things are just hard to write in HPF
  • Some things are impossible to do in HPF
    • Nondeterminism
Efficiency
  • Because of interface requirements, this works best for superlinear operations (e.g. ScaLAPACK)

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