[Numpy-discussion] SFMT (faster mersenne twister)

Phil Hodge hodge at stsci.edu
Fri Sep 5 13:26:29 EDT 2014


On 09/05/2014 01:19 PM, Neal Becker wrote:
> You mean it's not backward compatible because it won't generate exactly the same
> sequence of output for a given seed, and therefore we wouldn't want to make that
> change?
>
> I think it's somewhat debatable whether generating a different sequence of
> random numbers counts as breaking backward compatibility.

For regression tests it's essential to be able to generate the same 
sequence of values from a pseudo-random number generator.

Phil



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