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verified publisher icon simongog

Could use intel avx instructions when possible?

Open rockeet opened this issue 11 years ago • 2 comments

avx instruction has 256 bits instructions such as 256 bits popcount, this could improve the bit operations speed, could you add support for it?

rockeet avatar May 13 '14 10:05 rockeet

Hi @rockeet, currently we use the 64-bit popcount. I'm not sure, if 256 instructions work with the current memory alignment. Can you please give me a reference to the 256 bit popcount operation in avx, so that I can have a look? Thanks.

simongog avatar May 14 '14 00:05 simongog

@rockeet @simongog Hi, my two old friends, I'm also finding 256 bit popcount, do you find it! :laughing:

ysh329 avatar Jun 06 '17 08:06 ysh329