Thanks Ian, The std lib float32 is slow for my purpose. In my benchmarking it is actually slower than the float64. But I don’t even need float16 precision. I am working on implementing othe alias method for sampling from a fixed freq dist with possibly thousands of arbitrary values. So the rng doesn’t need to be precise or high quality because of rounding eg a rn of .67895 might end up selecting the same arbitrary value as .67091 or even .65!! https://en.m.wikipedia.org/wiki/Alias_method
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