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Re: random number seed initialisation [message #87514 is a reply to message #87512]

Tue, 11 February 2014 07:22

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

>> But what if two users init within the same second (not outside the realm of possibility in my application)? I guess I could go to microseconds, that would probably do it.
>
> If you are running a relatively recent version of IDL, I really don't
> think you have to worry about this. They recently overhauled the way
> they generate the initial seed to make it more robust. You would have to
> ask the folks at ExelisVis, but if it were me, I could find a couple of
> hundred things more compelling to worry about, starting with high
> avalanche danger on my favorite skiing trails after a weekend of big
> snows.

I think I was a day early in my concerns. In my Feedly reading list this
morning:

http://www.brainpickings.org/index.php/2014/02/11/brockman-w hat-
should-we-be-worried-about/

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

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[Message index]

		random number seed initialisation By: Matt Francis on Sun, 09 February 2014 18:21
		Re: random number seed initialisation By: David Fanning on Sun, 09 February 2014 18:37
		Re: random number seed initialisation By: Matt Francis on Mon, 10 February 2014 15:11
		Re: random number seed initialisation By: David Fanning on Mon, 10 February 2014 15:22
		Re: random number seed initialisation By: Matt Francis on Mon, 10 February 2014 15:32
		Re: random number seed initialisation By: David Fanning on Mon, 10 February 2014 15:42
		Re: random number seed initialisation By: David Fanning on Tue, 11 February 2014 07:22
		Re: random number seed initialisation By: Mats Löfdahl on Tue, 11 February 2014 01:34

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