Re: [Gems-users] Counting L1 misses and stop simulation

[Dan Gibson <degibson@xxxxxxxx>]

Marco Solinas wrote:

Thank you Mike.

ok... knowing this value from either MOESI_CMP_NUCA-L1cache.sm or 
Sequencer.C, is there any way to stop the simulation? I mean:
1) Can I read such value from Simics, test it and, if it matches some 
conditions, stop the simulation? Or
  

The information you will need will be inside Ruby... you won't have to read anything from Simics.

2) Is there any way to stop the simulation directly from such Ruby files?
Please remember that I need to stop the simulation when 4 CPU (I exaclty 
know their IDs...) globally reach a given N of L1 misses.
  

Try SIM_break_simulation(). See the Simics Reference Manual for details.

Regards,
Dan

Sorry for this silly question...
Marco

  

You can profile L1 misses in the L1 controller (MESI_CMP_NUCA-L1cache.sm).
Or you can profiler them in Sequencer.C.

    

I'm a new Simics + GEMS user. At the moment, I'm simulating an 8 CPU 
UltraSPARC CMP system, running Solaris 10, with a DNUCA L2 cache (I've 
compiled Ruby with protocol=MOESI_CMP_NUCA, and configured it properly). 
I'm running 4 applications of the SPEC2000 suite as benchmarc... such 
applications are assigned each to a specific CPU, using the Solaris' 
processor_bind syscall.

I would like to be albe to stop the simulation when a given number N of 
L2 references have been generated by the 4 CPUs running my 4 SPEC 
applications, in order to stop the simulation when such number of L2 
references is reached, dump the statistics, clear them and then let the 
simulation continue from the point it was stopped. For this purpose, I 
was trying to understand if there is a way to count the number of L1 
misses for each CPU (or at least for the entire system...).

Is there any way to solve my problem? Or, if it's not possible to count
such number for each CPU, is it possible to count at least the number of
L1 miss of the entire system? I hope you can help me.

Thank you for your attention.
Marco
      

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