stateless PRNGs

By: hobold (hobold.delete@this.vectorizer.org), March 27, 2022 2:11 am
Room: Moderated Discussions
Jörn Engel (joern.delete@this.purestorage.com) on March 26, 2022 2:14 pm wrote:
> hobold (hobold.delete@this.vectorizer.org) on March 26, 2022 10:32 am wrote:
[...]
> > Sounds like moving "Counter * LargeOddScaleFactor" from the callee to the caller. Is that really a win?
>
> If you're in the game of creating the fastest high-quality PRNG, then yes. They are
> so fast that turning one multiplication into an addition removes a substantial part
> of the cost.

Ah I see, we are moving from "Counter * LargeOddScaleFactor" to "Counter += LargeOddScaleFactor" ... but then "Counter" is indeed an explicitly maintained state. Hmm. Could sometimes be a win, I guess.
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                      stateless PRNGshobold2022/03/25 02:34 PM
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                          stateless PRNGshobold2022/03/26 10:32 AM
                            stateless PRNGsJörn Engel2022/03/26 02:14 PM
                              stateless PRNGshobold2022/03/27 02:11 AM
                      Pseudo-random number generator would provide reproducible stochastic roundingblaine2022/03/26 01:09 PM
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