Basic HTML version of Foils prepared April 22 2000

Foil 24 Parallelism in 1D FFT

From Parallel FFT and use in PDE Solvers Computational Science Class CPS615 -- Winter Semester 2000. by Geoffrey C. Fox
Binary
Representation
of Index m
Consider 4 Processors and natural block decomposition
note phases 2 and 3 have communication as dependency lines cross processor boundaries
1
2
3
Processor
Boundary
Processor
Boundary
Processor
Boundary
Processor
Number

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