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Re: [Bug-gsl] initialisation of random number generator on 64bit machine
From: |
Brian Gough |
Subject: |
Re: [Bug-gsl] initialisation of random number generator on 64bit machine |
Date: |
Fri, 05 Sep 2008 17:22:33 +0100 |
User-agent: |
Wanderlust/2.14.0 (Africa) Emacs/22.2 Mule/5.0 (SAKAKI) |
At Wed, 03 Sep 2008 15:43:33 +0200,
Vito Trianni wrote:
>
> Hello,
> I noticed the following behaviour when initialising the random number
> generator on a 64bit machine. Basically, on a 64 bit machine, the
> unsigned long int probably provokes an overflow in the gsl_rng_set()
> function, so that the initialisation of the seed in some way fails, and
> I got always identical numbers despite different seeds. Here is part of
> the code that made the overflow:
Thanks for your email -- could you send a complete example program
showing the seed and output values so we can reproduce the
problem. Thank you.
--
Brian Gough
GNU Scientific Library -
http://www.gnu.org/software/gsl/