[ns] A question about random seed
Marcos "Locksmith" Portnoi
Mon Apr 22 10:05:01 2002
That's because example1.tcl does not use any function that computes random
values. It uses CBR as traffic generator, which is deterministic. Indeed,
you will always get the same result. :)
Try a script with Exponential On/Off generator.
----- Original Message -----
From: "stan" <email@example.com>
To: "Marcos Locksmith Portnoi" <firstname.lastname@example.org>
Sent: Thursday, April 18, 2002 9:30 PM
Subject: Re: [ns] A question about random seed
> hi Marcos,
> i had added the command in the simulation script
> but i still get the same result for each of my
> simulation. Could you explain why?
> I used example1.tcl in the ns tutorial as my example.
> Thanks and Regards,
> " Line:3 Col:1--- "Marcos \"Locksmith\" Portnoi"
> <email@example.com> wrote:
> > The following command, put at the beginning of the
> > script, will seed the random number generator with
> > the system timer. Hence, different random series
> > always.
> > ns-random 0
> > Portnoi
> > ----- Original Message -----
> > From: pangbo
> > To: ns-users@ISI.EDU
> > Sent: Tuesday, April 16, 2002 11:26 AM
> > Subject: [ns] A question about random seed
> > Hi,
> > I'd like to repeat one simulation several times.
> > But every time I got the same result. I guess if I
> > set a different random seed for ns, the result will
> > be different every time. So could somebody tell me
> > how can I set it.
> > Thanks!
> > Pang Bo
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