Generate high quality pseudorandom numbers using a SIMD Fast Mersenne Twister

LTS Haskell 22.28:
Stackage Nightly 2024-07-13:
Latest on Hackage:

See all snapshots mersenne-random appears in

BSD-3-Clause licensed by Don Stewart
Maintained by Don Stewart
This version can be pinned in stack with:mersenne-random-,3637

Module documentation for

Depends on 2 packages(full list with versions):

The Mersenne twister is a pseudorandom number generator developed by Makoto Matsumoto and Takuji Nishimura that is based on a matrix linear recurrence over a finite binary field. It provides for fast generation of very high quality pseudorandom numbers

This library uses SFMT, the SIMD-oriented Fast Mersenne Twister, a variant of Mersenne Twister that is much faster than the original. It is designed to be fast when it runs on 128-bit SIMD. It can be compiled with either SSE2 and PowerPC AltiVec support, to take advantage of these instructions.

cabal install -fuse_sse2

On an x86 system, for performance win.

By default the period of the function is 2^19937-1, however, you can compile in other defaults. Note that this algorithm on its own is not cryptographically secure.

For more information about the algorithm and implementation, see the SFMT homepage,

and, Mutsuo Saito and Makoto Matsumoto, /SIMD-oriented Fast Mersenne Twister: a 128-bit Pseudorandom Number Generator/, in the Proceedings of MCQMC2006, here: