Re: [Gems-users] GEMS: how to find out the frequency of GEMS

[Philip Garcia <pcgarcia@xxxxxxxx>]

To dynamically change the latencies, you'll need to redefine a lot of  
the latency parameters.  This can be done, but it would be tricky.   
For instance you'd want to adjust the cache latencies based on what  
speed the CPU is running at.  You'd have to modify different latency  
parameters depending on which protocol you're using.  Things will be  
even trickier if you are using a memory controller model.  I think  
there might be some parameters for clock ratio that you could adjust  
which would make things easier.  Basically, to do what you want it'll  
require some non-insignificant hacks into ruby.
Phil
On Oct 25, 2009, at 4:58 PM, Sowmyalatha Srinivasmurthy wrote:

> I intend to dynamically change frequency in GEMS.
> Is it possible? In case it is how do we do that?
>
> Thank you
> Regards
> Sowmya
>
> > Frequency is set in Simics. I'm not sure what you're asking here:  
> > "n case
> > it
> > does then can we see the change in the frequency scaled by a
> > factor in GEMS?", please clarify.
> >
> > Polina
> >
> > On Fri, Oct 23, 2009 at 3:26 PM, Sowmyalatha Srinivasmurthy <
> > sowmya@xxxxxxxxxxx> wrote:
> >
> > > Hi,
> > >
> > > A few questions related to the frequency at GEMS operates.
> > >
> > > How do we find the frequency at which GEMS is running?
> > > Does it depend on the frequency set in SIMICS via the check point?
> > > In case it does then can we see the change in the frequency scaled  
> > > by a
> > > factor in GEMS?
> > > Otherwise how do we change the frequncy of GEMS to a particular
> > > frequency
> > > we need to operate at?
> > >
> > >
> > > Regards,
> > > Sowmya
> > > _______________________________________________
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>
> Regards,
> Sowmya
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