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A comment on Finding unique items: hash vs. sort.
https://15721.courses.cs.cmu.edu/spring2016/papers/kim-vldb2...
It's interesting they predicted sort would surpass hashing when the registers got to 512b, and we got AVX512 nowadays. TBH, their SSE4 sort implementation was quite complex (but beautiful).
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https://15721.courses.cs.cmu.edu/spring2016/papers/kim-vldb2...
It's interesting they predicted sort would surpass hashing when the registers got to 512b, and we got AVX512 nowadays. TBH, their SSE4 sort implementation was quite complex (but beautiful).