[parsec-users] Fw: Running PARSEC benchmarks

Muhammad abid Mughal mabidm_pieas at yahoo.com
Thu Jan 14 20:12:42 EST 2010


Hi Chris:
            Thanks a lot.
             
            Now i have decided to run each benchmark for the whole ROI with "simsmall" input.
Is that right?. I think its absolutely right.

Once again a bundle of thanks.

Regards,
Muhammad abid

________________________________
From: Christian Bienia <cbienia at CS.Princeton.EDU>
To: PARSEC Users <parsec-users at lists.cs.princeton.edu>
Sent: Thursday, January 14, 2010 23:50:45
Subject: Re: [parsec-users] Fw: Running PARSEC benchmarks

 
Hello Muhammad,
 
The only way I can come up with to test how many kernels you
have executed is by inserting magic instructions or something like that into
the benchmark program. Then again, you’d have to run the whole program anyway
to complete all kernels, so why bother?
 
The slow execution speed of detailed simulators is a real issue,
but there is nothing you can do about it as a benchmark user. We need more innovation
in simulation technology. Sampling might be a way out, but most simulators don’t
support it (yet).

Best,
Chris
 
 
 
From:parsec-users-bounces at lists.cs.princeton.edu [mailto:parsec-users-bounces at lists.cs.princeton.edu] On Behalf Of Muhammad abid Mughal
Sent: Thursday, January 14, 2010 10:37 AM
To: Parsec group
Subject: [parsec-users] Fw: Running PARSEC benchmarks
 
Hi Chris:
  
        Thank you very much and thanks for your guidence.
How will i come to know that all kernels are running?
  
       Actually i am using GEMS and its too slow.If i run
each core for 1 Billion instruction then its gonna be take seven or more days.
 
 
Regards,
Muhammad
abid
 
 
----- Forwarded Message ----
From: Christian Bienia <cbienia at CS.Princeton.EDU>
To: Muhammad abid Mughal <mabidm_pieas at yahoo.com>
Sent: Thursday, January 14, 2010 22:42:52
Subject: RE: Running PARSEC benchmarks
Hello Muhammad,
 
It’s not a sane methodology. Most PARSEC workloads have multiple
kernels and unless you run all of them you won’t get the representative program
behavior. If you want to run only a subset of the instructions you should use
sampling, some simulators such as Flexus offer sampling by default.
 
It would make my life easier if you send your questions to the
parsec-users mailing list because I usually get the same ones on and on.
 
Best,
Chris
 
 
From:Muhammad abid
Mughal [mailto:mabidm_pieas at yahoo.com] 
Sent: Thursday, January 14, 2010 8:07 AM
To: Christian Bienia
Subject: Running PARSEC benchmarks
 
Hi Chris:
  
          Hope you doing good. Am i bothering you by
directing questions directly to your email?.
 
My question
is that:
  
                     
    I am using 8-Core CMP with Out-Of-Order Superscalar processor.
I am
running PARSEC benchmarks for a total of 2 Billion inst . I use first One
billion inst to warm caches and 2nd billion inst to perform detailed
simulation.
 
  
                     
   I am using "simsmall"  data set.
 
 
Is this
methodology is correct to measure performance of PARSEC benchmarks?
 
 
Thanks in
advance
 
Regards
Muhammad
abid
 

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