Basic HTML version of Foils prepared December 6 98

Foil 3 Rites of Passage

From Lessons from C++ for the Java Grande Process SC98 Orlando Java Grande Panel -- November 13 98. by John Reynders (Los Alamos)
1 Cost of rewrite to a physicist is too high
  • Demonstrated C++ codes which outperformed their Fortran equivalents
    • Able to deploy a wider range of object optimizations such as array compression
    • parallel encapsulation enabled "hidden" multi-threading
  • Demonstrated C++ codes which outscaled their Fortran equivalents
    • Dynamic load balancing ( e.g. particle swap and balance )
2 Developed full-scale physics codes:
  • multi-material hydro
  • fusion plasmas
  • advanced accelerator design
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