Basic HTML version of Foils prepared August 4 1996

Foil 14 PetaFlop Kernel:a),b)Unit and Large Stride Vector Fetch and Store

From Summary of Working Groups at PAWS and PetaSoft Meetings PAWS(Mandalay Beach) and PetSoft(Bodega Bay) -- April 23 and June 17-19,96. by Geoffrey C. Fox
In the first three kernels (a) (b) (c), n = 10^8; arrays are presumed appropriately dimensioned.
a). SAXPY loop
do i = 1, n
  • c(i) = 3.141592653589793 * a(i) + b(i)
enddo
b). Large-stride vector fetch and store
do i = 1, n
  • b(131*i) = a(131313*i)
enddo

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