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by camuel
1284 days ago
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I wonder why no one mentions bitonic sort? If you want to do anything in SIMD you better avoid branching as much as possible... and ideally altogether. Here is an implementation I co-authored some 10 years ago: https://github.com/zerovm/zerovm-samples/blob/master/disort/... Sorting-networks which were already mentioned seems similar but a bit too abstract. My code above doesn't contains values but those are easy to add I think. Of course it is better to permute fixed size pointers / offsets and not the entire blobs which can be of variable size and then it will complicate everything beyond feasible for SIMD |
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