Separate HTML for Scripted Foil 124 New Data Mapping Features in HPF 2.0

Basic HTML version of Foils prepared 26 September 1996

Foil 124 New Data Mapping Features in HPF 2.0 - II

From HPCC Software Technologies Fall 96 -- Overview and HPF Delivered Lectures of CPS615 Basic Simulation Track for Computational Science -- 26 September 96. by Geoffrey C. Fox

Distribution is now allowed to Processor Subsets with typical Syntax:

!HPF$ PROCESSORS procs(1:np)
!HPF$ PROCESSORS b(BLOCK) ONTO procs(1:np/2-1)

Distribution is allowed for Derived Types but can only be done at ONE level

TYPE bunch_of_meshes
- REAL A1(100,100,100), A2(100,100,100)
- !HPF$ DISTRIBUTE (BLOCK,CYCLIC,*) :: A1,A2
END TYPE
Another Example shows distribution outside TYPE definition
TYPE tree with each node having one hundred children
- TYPE(tree) , POINTER, DIMENSION(100) :: children
- !HPF$ DYNAMIC children
- REAL value
END TYPE
TYPE(tree) actualtree
ALLOCATE ( actualtree%children) allocates POINTERs to children
!HPF$ REDISTRIBUTE t%children(BLOCK) distributes (for first time) these pointers

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