(i'm going through all the possible explanations until hopefully one of them hits programmers' brains open)
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So I guess I’m saying that it might be easiest to teach the general SIMD prefix sum principle first and then mention how fast adders are a specific variation on that technique.
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yeah, that's the way I approach it to. :)https://twitter.com/rygorous/status/1022589702598090752 …
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I learned about the prefix sum thing and fast adders many years ago in that order, but separately, and I don't know if I connected them until this thread? (I'm not an EE either, but I was poking at SAT stuff in grad school.)
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so the other reason I like the adder thing (and the stuff in the Harris paper) is because in my experience (small sample size though!) a lot of people know about scan algorithms but they either don't know the connection, or don't know there's more than 1 or 2 of these algs
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