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A program for benchmarking and testing pseudo-random generators for use in computer RPGs.

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prng-test

A program for benchmarking and testing pseudo-random generators for use in computer RPGs.

What's done:

  • I've adapted a few implementations of PRNGs, including Mersenne-Twister, WELL, Xorshift, and Mitchell-Moore
  • the program can produce a stream of pseudo-random numbers, which is handy for testing quality of a PRNG with an external program, such as ent or dieharder.

Currently supported options:

  • h: help
  • l: list all generators and exit
  • g: select one generator
  • b: don't make built-in tests, generate binary instead
  • s: use external seed; -s `date +'%s'` is a nice example
  • n: generate n 32-bit numbers
  • o: output to file instead of stdout

Currently implemented generators:

  • derp - a number generator of extremely poor quality, but fast and, apparently, well distributed
  • LGC-k1 - a fast Linear Congruential Generator as described by George Marsaglia
  • MM - Mitchell-Moore from The Art of Computer Programming by Donald E. Knuth
  • MMopt - A slightly different implementation of Mitchell-Moore
  • MT19937 - Mersenne-Twister
  • MWC256 by George Marsaglia
  • p_rand - some LGC I know from Jon Lambert
  • WELL44497a - Well Equidistributed Long-period Linear, k=44497, no tempering
  • WELL44497b - WELL, k=44497, with tempering
  • WELL512 - WELL, k=512
  • Xorshift-k4 by George Marsaglia
  • Xorshift-k5 by George Marsaglia

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A program for benchmarking and testing pseudo-random generators for use in computer RPGs.

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