On Tuesday, 12 April 2016 at 14:56:00 UTC, Andrei Alexandrescu wrote: > Also to avoid cache line thrashing, sort parallel swaps by > leftmost index. E.g. this line: > > 18,19, 20,21, 2,4, 1,3, 0,5, 6,8, 7,9, 10,12, 11,13, > > becomes: > > 0,5, 1,3, 2,4, 6,8, 7,9, 10,12, 11,13, 18,19, 20,21, > > > Andrei Done.