Re: [Gems-users] Questions about load ruby in Simics and Power in opal

[Luke Yen <lyen@xxxxxxxxxxx>]

  Regarding the "power" directory in Opal, the files inside that 
directory is my port of Wattch for the Opal processor pipeline.  I have 
used it in the past to obtain relative power and energy measurements, but 
this power model has not been validated against any circuit 
implementations.
  Luke

On Thu, 10 Jan 2008, Dan Gibson wrote:

> This class of error (undefined unmangled symbol) is often a case where a version flag somewhere in Gems is improperly set. Be sure that you set your
> SIMICS_VERSION flags appropriately like it says in the GEMS Wiki, and then be sure to make clean.
>
> Regards,
> Dan
>
> Cihat Basol wrote:
>       Hi Yang,
>
>       I faced the exact same error. The thing is that in simics 3.0, SIM_hap_register_callback is obsolete. You can just go into ruby.c file
>       and comment out the lines that includes that function. There are in fact 4 or 5 of those functions mostly about mmu. But I am not sure
>       if it is the right thing to do. However, I haven't encountered any problem due to disabling those callback so far.
>
>       Thanks,
>       Cihat.
>
>
>       On Jan 11, 2008 5:49 AM, Guoqiang Yang <nkyangguoqiang@xxxxxxxxx> wrote:
>             Hi there,
> I have two questions now, would anyone know these issues?
>  
> 1. In fact I have posted this question two weeks ago, but didn't get any information, and I would like to post it a second time in case
> that some of you guys were on holidy at that time. 
>  
> I'm now using GEMS2.0. And I configured the simulation system using MOESI_CMP_directory protocol. And the system was configured as
> 4-processor 4-l2 banks and 4 memories. Now, I can run tester in ruby. But when I tried to load ruby into simics, the following error
> occured.
>  
> Error loading module 'ruby': Failed to load module 'ruby'
> ('/scratch/cerberus/guoyang/simulators/Gems/2.0GEMS/simics_3_workspace/x86-linux/lib/ruby.so'): "undefined symbol:
> SIM_hap_register_callback"
>   
> And I checked Gems1.4, there is no function call of SIM_hap_register_callback. Is there anyone know how to solve this problem or explain
> why would this happen?
>  
> 2. I also noticed that there is a "power" directory in opal and I also found the wattch power in opal. My question is: is the power
> thing in opal the same as in Wattch, and does this piece of code work properly or tested properly?
>  
> Many thanks,
>  
> Guoqiang Yang
>
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