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Parallel Nibble Sort

by Jethro Beekman – Jan 28, 2015 – Updated: Jul 20, 2015. Filed under: English, Technology, SIMD.

Update July 20, 2015: The winning solution by Alexander Monakov also uses a sorting network but transposes the items to be sorted to sort 32 nibbles in parallel with a length 60 network, instead of my 4 nibbles with a depth 9 network. Hans Wennborg has a nice write-up of that solution. Continue reading…Comments