[EnergyPlus_Support] Re: Random number generator in EMS

["L Lawrie" <linda@xxxxxxxxxxxxxx>]

Are you using the "CurrentTime" variables as your random seed?  It would probably be fairly easy to add built in variables of ActualTimeOfDay if CurrentTime is really Simulation time.  I presume that is what you mean by "computer time"?

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Liam O'Brien"  wrote:
>
> Thanks, Brent. Good call. 
> 
> I hope that down the line the seed can be based on computer time and not simulation time because stochastic modelling is going to require grater random number generator capabilities. 
> 
> Cheers,
> Liam
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Griffith, Brent"  wrote:
> >
> > Use the seed to control behavior.  Vary the seed from run to run using @SeedRandom.
> > 
> > From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Liam O'Brien
> > Sent: Thursday, January 17, 2013 4:12 PM
> > To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> > Subject: [EnergyPlus_Support] Random number generator in EMS
> > 
> > 
> > 
> > Hi All,
> > 
> > I noticed that the random number generator is pseudorandom (meaning that consecutive simulations seem to come up with the same numbers). This doesn't suit my application very well because I specifically want a probability distribution on the annual energy use. Does anyone know of how to get more randomness (even if it's faking it somehow)?
> > 
> > Thanks,
> > Liam O'Brien
> > Carleton University
> >
>




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