Re: [Libmesh-users] random initial condition for each node

[Roy S. <roy...@ic...>]

On Wed, 17 Mar 2010, Derek Gaston wrote:

> On Mar 16, 2010, at 5:47 PM, Kirk, Benjamin (JSC-EG311) wrote:
>
>> not sure, but on my OSX box the first line of 'man srand' says 'bad random
>> number generator'
>
> Just a general warning to everyone out there.... the OSX
> implementation of rand() gives EXTREMELY non-random numbers as the
> first number after a seed().

Thanks for the warning.  I remember having to avoid rand() a decade
ago because the implementation sucked for some old Unix.  (HP-UX 8? I
forget)  I'd assumed that was a long-forgotten problem, but my own
code uses random()/srandom() thanks to that experience.  Any idea
whether random() has the same problem on OS X?
---
Roy