A very simple header only C++ class to create a static sort.
Uses templates to generate a Bose-Nelson sorting network on compile time.
To enable the magic to happen, please turn on optimizations. =)
(-O2 or -O3 depending on your compiler)
Simply static_sort.h into your project and #include it. =)
You can also copy and paste the code from static_sort.h directly!
Here are the number of milliseconds taken to sort 1 million arrays of ints.
Compiled with clang -O3, a Macbook Air (Mid-2012) Intel i7-3667U 2GHz.
Here are the average clocks per sort against other static sorts from
http://stackoverflow.com/questions/2786899/fastest-sort-of-fixed-length-6-int-array
(Lower is better)
Clang -O3 :
----------
Direct call to qsort library function : 326.81
Naive implementation (insertion sort) : 132.98
Insertion Sort (Daniel Stutzbach) : 104.04
Insertion Sort Unrolled : 99.64
Insertion Sort Unrolled (Glenn Teitelbaum) : 81.55
Rank Order : 44.01
Rank Order with registers : 42.40
Sorting Networks (Daniel Stutzbach) : 88.06
Sorting Networks (Paul R) : 31.64
Sorting Networks 12 with Fast Swap : 29.68
Sorting Networks 12 reordered Swap : 28.61
Reordered Sorting Network w/ fast swap : 24.63
Templated Sorting Network (this class) : 25.37
Intel Compiler 16.0 -O3 :
------------------------
Direct call to qsort library function : 325.28
Naive implementation (insertion sort) : 97.38
Insertion Sort (Daniel Stutzbach) : 108.97
Insertion Sort Unrolled : 97.16
Insertion Sort Unrolled (Glenn Teitelbaum) : 109.65
Rank Order : 38.13
Rank Order with registers : 32.96
Sorting Networks (Daniel Stutzbach) : 85.56
Sorting Networks (Paul R) : 47.57
Sorting Networks 12 with Fast Swap : 41.13
Sorting Networks 12 reordered Swap : 37.42
Reordered Sorting Network w/ fast swap : 25.60
Templated Sorting Network (this class) : 29.09
- http://stackoverflow.com/questions/2786899/fastest-sort-of-fixed-length-6-int-array
- https://github.com/atinm/bose-nelson/blob/master/bose-nelson.c
Copyright (c) 2016 Kang Yue Sheng Benjamin
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