PetaSoft Findings 3) and 4) -- Using Memory Hierarchy

PetaSoft Findings 3) and 4) -- Using Memory Hierarchy

• 3)One needs a machine “mode” which supports predictable and controllable memory system leading to communication and computation with same characteristics
  • Allow Compiler optimization
  • Allow Programmer control and optimization
  • For instance high performance would often need full program control of caches
• 4)One needs a low level software layer which provides direct control of the machine (memory hierarchy etc.) by a user program
  • This for initial users and program tuning

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