Basic HTML version of Foils prepared 2 September 1997

Foil 30 What is the relation of sequential and parallel programming models ?

From CPS615 Laplace Example -- Programming Models and Performance CPS615 Basic Simulation Track for Computational Science -- Fall Semester 97. by Geoffrey C. Fox
In both cases, one is "solving" the "same" problem j --> .25 (jleft +jright + jup + jdown)
over a set of points
In sequential case, problem is "solved" over the full domain
In parallel case, problem is "solved" over part of domain (roughly one sixteenth of it) i.e. each node is solving same problem as sequential case but over a different - smaller geometry
In sequential case, boundary conditions are "just" fixed values on the edge
In the parallel case, boundary conditions are in addition, communicated values

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