The mwc-random package

[Tags:bsd3, library]

Fast, high quality pseudo random numbers.


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Versions 0.4.1, 0.4.1.1, 0.5.0.0, 0.5.1.1, 0.5.1.2, 0.5.1.3, 0.5.1.4, 0.6.0.0, 0.7.0.0, 0.7.0.1, 0.8.0.0, 0.8.0.1, 0.8.0.2, 0.8.0.3, 0.8.0.5, 0.9.0.0, 0.10.0.0, 0.10.0.1, 0.11.0.0, 0.12.0.0, 0.12.0.1, 0.13.0.0, 0.13.1.0, 0.13.1.1, 0.13.1.2, 0.13.2.0, 0.13.2.2, 0.13.3.0, 0.13.3.1, 0.13.3.2, 0.13.4.0
Dependencies base (<5), time, uvector (>=0.1.0.4) [details]
License BSD3
Copyright 2009 Bryan O'Sullivan
Author Bryan O'Sullivan <bos@serpentine.com>
Maintainer Bryan O'Sullivan <bos@serpentine.com>
Stability Unknown
Category Math, Statistics
Home page http://darcs.serpentine.com/mwc-random
Uploaded Sat Dec 26 05:56:01 UTC 2009 by BryanOSullivan
Distributions Arch:0.13.4.0, Debian:0.13.3.2, Fedora:0.13.3.2, FreeBSD:0.13.3.2, LTSHaskell:0.13.4.0, NixOS:0.13.4.0, Stackage:0.13.4.0
Downloads 61897 total (66 in the last 30 days)
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Status Docs uploaded by user
Build status unknown [no reports yet]

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Readme for mwc-random

Readme for mwc-random-0.4.1

Efficient, general purpose pseudo-random number generation
----------------------------------------------------------

This package provides the System.Random.MWC module, a Haskell library
for generating high-quality pseudo-random numbers in a space- and
time-efficient way.


Performance
-----------

This library has been carefully optimised for high performance.  To
obtain the best runtime efficiency, it is imperative to compile
libraries and applications that use this library using a high level of
optimisation.

Suggested GHC options:

  -O -fvia-C -funbox-strict-fields

To illustrate, here are the times (in seconds) to generate and sum 250
million random Word32 values, on a laptop with a 2.4GHz Core2 Duo
P8600 processor, running Fedora 11 and GHC 6.10.3:

  no flags   200+
  -O           1.249
  -O -fvia-C   0.991

As the numbers above suggest, compiling without optimisation will
yield unacceptable performance.


Get involved!
-------------

Please feel welcome to contribute new code or bug fixes.  You can
fetch the source repository from here:

darcs get http://darcs.serpentine.com/mwc-random


Authors
-------

Bryan O'Sullivan <bos@serpentine.com>