Basic HTML version of Foils prepared 15 March 1996

Foil 12 Data Alignment and Distribution Directives

From Complex Systems and Parallel Computing CPSP713 Case studies in Computational Science -- Spring Semester 1996. by Geoffrey C. Fox


1 Model of the allocation of data objects to processor memories is that there is a two-level mapping of data objects to abstract processors. Data objects (typically array elements) are first aligned with an abstract indexing space called a template; a template is then distributed onto a recilinear arrangement of abstract processors. The implementation then uses the same number, or perhaps some smaller number, of physical processors to implement these abstract processors. This mapping of abstract processors to physical processors is implementation dependent.

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