Array Arguments Example 2

It is much simpler but less efficient to use prescriptive distributions.

     SUBROUTINE Zubbie(x,y,z)    
!HPF$ TEMPLATE, DIMENSION(4,6)            :: T
!HPF$ PROCESSORS, DIMENSION(2,2)          :: P
      REAL, INTENT(INOUT), DIMENSION(:,:) :: x, y
      REAL, INTENT(INOUT), DIMENSION(:,:) :: z
!HPF$ DISTRIBUTE (BLOCK,BLOCK) ONTO P     :: x, y, z
      ...

may generate,

• two remappings,
  • on entry,
  • on exit.
• (probably) communications due to non-specific alignment.

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