Go backward to Vectorization Inhibitors Go up to Top Go forward to Vectorization Principles

Vectorization Principles

• Loops over arrays

  DO I = ...
    ... A(I) ...
  ENDDO
  

• Induction variables

  Incremented/decremented by constant during each iteration

  J = 1
  DO I = 1, N
    J = J+3
    A(I) = A(J)*B(I)
  ENDDO
  

  I and J are induction variables