Poisson: split Knuth/Rejection methods #1493
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With #[inline] on all sample methods there is no effect on benchmarks; as presented there is <2% on most, +8% time on variable benchmark.
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MichaelOwenDyer
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Sep 18, 2024
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I like the thought behind the change, it doesn't make sense to decide which method to use every single time a Poisson distribution is sampled. Using an enum is cleaner. I have some thoughts on the details.
I can't comment too well on the benchmarking code, as I am unfamiliar with criterion and don't understand the reasons for many of the changes. I'm gonna go learn about Criterion now 🤠
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Summary
Use an enum over Poisson implementations
Motivation
#1484 uses the
Poissonmethod internally, but only for small expected values.@benjamin-lieser please merge this PR into yours and use
poisson::KnuthMethodinstead ofPoisson.