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The relevance of this to Cooley Tukey FFT can be seen from basic recursive step which precisely involves linking Fourier coefficients which also just differ by one in a single binary digit
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Hypercube had other useful features e.g. the 64 node 6 dimensional hypercube includes meshes (8 by 8, 4 by 4 by 4, 2 by 8 by 4 etc.)
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However nowadays one builds general purpose switches (communication systems) and does not focus on particular communication topologies
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Hypercube Topology for 8 machines
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Seitz and
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Fox with
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Caltech
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64 node
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Hypercube
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1983
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