Basic HTML version of Foils prepared February 13 00

Foil 14 Parallel Guard Rings in One Dimension

From Master Set for Parallel Programming for Laplace's Equation CPS615 Spring Semester 00 -- February 00. by Geoffrey C. Fox
Now we decompose our 16 points (trivial example) into four groups and put 4 points in each processor
Instead of dimensioning PHI(4) in each processor, one dimensions PHI(6) and runs loops from 2 to 5 with either boundary values or communication setting values of end-points
Sequential:
Parallel:
PHI(6) for Processor 1

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