Re: [Gems-users] Fw: Question about the power module in Opal-GEMS

["Serkan Ozdemir" <s-ozdemir@xxxxxxxxxxxxxxxx>]

Hi,

Thanks for the info. However, if I set the WATTCH_POWER flag in 
/opal/config/config.defaults to 1 to report power (instead of the default 
value 0), re-compile opal (without any errors as far as I can tell) and 
initilize in simics using opal0.init I get the following error:
---
... bunch of warnings in pstate_t: warning: control register #XX == "(null)" 
has simics name "xy".  --i get this even if WATTCH_POWER=0
***Simics getting shaky, switching to 'safe' mode.
Simics (main thread) received a segmentation fault. Will try to recuperate.
---

Any idea what might be wrong?
thanks,

_Serkan_

----- Original Message ----- 
From: "Luke Yen" <lyen@xxxxxxxxxxx>
To: "Gems Users" <gems-users@xxxxxxxxxxx>
Sent: Thursday, April 03, 2008 4:03 PM
Subject: Re: [Gems-users] Fw: Question about the power module in Opal-GEMS


>    If you want to call that function every number of cycles, you can put a
> call to that in opal/system/system.C.  WATTCH's power stats are collected 
> every
> cycle through a call to pseq_t::updatePowerStats().  You can do something
> similar and provide the appropriate wrapper code.
>
>   Luke
>
> On Wed, 2 Apr 2008, Serkan Ozdemir wrote:
>
> > Hi,
> >
> > I've been trying to use the power module provided by GEMS (under 
> > gems-2.1/opal/power/) but I couldn't figure out where and how to call 
> > specific functions (such as output_periodic_power) defined in power.[C/h] 
> > since no other part of the simulator currently utilizes them. I would 
> > appreciate any help or information you could provide.
> > I'm using GEMS v2.1 along with SIMICS v2.2.19.
> >
> > Thanks in advance,
> >
> > Serkan Ozdemir
> > PhD Candidate
> > Dept of EECS
> > Northwestern University
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