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e.g. Program represented as sequence of functions operating on arrays
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Dimension: A(100,100), B(100,100), C(100,100)
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A = B + C
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| 2 |
Or as another example:
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A = B + Shift in x, y (C) In APL, Fortran90 - like syntax
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forall i, j Or we can use explicit forall loops
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A(i,j) = B (i,j) + C (i-1, j) + ......
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| 3 |
All data owned by a particular processor
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| 4 |
and we typically use Owner computes rule:
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For an expression such as A(i,j) = ..........,
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Processor holding A(i,j) calculates expression after communicating any needed data if r.h.s. contains data not owned by processor.
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| 5 |
Similar concepts in C, C++, LISP, ADA .......
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