Re: [Gems-users] Static & dynamic power distribution

[Niket Agarwal <niketa@xxxxxxxxxxxxx>]

Hi,

	That depends on a lot of things. The things you might want to check  
is, the number of VCs you are assuming, the number of buffers, flit  
size, the Vdd and Freq you are specifying, technology point, etc.  
There are just a lot of things that go into power calculations that  
need to be correct. Try to make sure all numbers are reasonable.
Cheers,
Niket

On Apr 28, 2009, at 5:04 PM, Shoaib Altaf wrote:

> Thanks for the reply.
>
> I was also trying to ungroup power dissipation in various components  
> i.e.
> buffers, arbiters and crossbar as well. I declared different  
> functions in
> the NetwrokPower.C , which did the same stuff as they were doing in  
> the main
> but now only calculating the individual powers.
>
> But the results came out to be strange:
>
> Router power : now in KW (earlier in 1-2 W)
> Buffer power : in KW
> Arbiter : ~0.01W (normal)
> Crossbar : 2W
>
> What can be the possible reason , why even the Router power shoots  
> up even
> though I didn't make any change in the calculate_offline _power  
> function.
>
> Regards
> Muhammad Shoaib
>
> --------------------------------------------------
> From: <niketa@xxxxxxxxxxxxx>
> Sent: Tuesday, April 28, 2009 3:15 PM
> To: "Gems Users" <gems-users@xxxxxxxxxxx>
> Subject: Re: [Gems-users] Static & dynamic power distribution
>
> > If you take a look at Router_d:calculate_offline_power function,
> > everything that is being calculated using the activity numbers is  
> > dynamic
> > power. Leakage power is also labeled in the function. The dynamic  
> > power
> > would be total power - leakage power.
> >
> > Cheers,
> > Niket
> >
> > ----- Original Message -----
> > From: Shoaib Altaf <shoaibbinalt@xxxxxxxx>
> > Date: Tuesday, April 28, 2009 1:37 pm
> > Subject: [Gems-users] Static & dynamic power distribution
> > To: Gems <gems-users@xxxxxxxxxxx>
> >
> > > Hi All,
> > >
> > > I am trying to figure out the dissipated power in terms of static &
> > > dynamic power. Now I believe the function calculate_offline_power()
> > > in NetworkPower.C gives the total power( static & dynamic).
> > >
> > > The leakage power defined in the same function is the static power
> > > I think so is the rest the dynamic power?. If not then how to
> > > calculate the dynamic power???
> > >
> > > Regards
> > > Muhammad Shoaib
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