[Cookie-users] Using PAPI on Cookie

[Boyana Norris]

Van Bui wrote:
> Hi Albert,
>
> There can also be internal hardware conflicts with using too many 
> memory counters in a single run. I often have to try out different 
> sets of counters that can be counted together in a single run.

There is a program you can use for that in the PAPI installation -- 
papi_event_chooser. You can give it desired event names as arguments 
(starting with one) and it returns the events that you could measure 
simultaneously. You keep adding events to the argument list until you 
run out of options. It would actually be very useful to have a script 
automating that, but I haven't had a chance to write it.


Boyana
>
> Other performance tools on the system that can also access the PAPI 
> counters include PerfSuite and TAU.
>
> /disks/large/soft/tau-2.18
> /disks/large/soft/perfsuite-0.6.2b3
>
> I have not tried using PAPI directly, but that is of course another 
> option. Let me know if you have any questions about using these tools.
>
> -Van
>
> On Fri, May 1, 2009 at 10:31 PM, Boyana Norris <norris at mcs.anl.gov 
> <mailto:norris at mcs.anl.gov>> wrote:
>
>     Hi Albert,
>
>     Yes, we've been using PAPI quite extensively -- the most recent
>     installed version is 3.6.2 and you can check whether the counters
>     you are interested are supported by running
>
>      /disks/soft/papi-3.6.2/bin/papi_avail
>
>     and if there is an event that's not supported, it is most likely
>     still available natively -- you can check those names with
>     papi_native_avail.
>
>     Boyana
>
>     --
>     Boyana Norris, Computer Scientist       |   Email:
>     norris at mcs.anl.gov <mailto:norris at mcs.anl.gov>
>     Argonne National Laboratory             |   Phone: +1 (630) 252 7908
>     http://www.mcs.anl.gov/~norris/
>     <http://www.mcs.anl.gov/%7Enorris/>         |   Fax:   +1 (630)
>     252 5986
>
>     ----- Original Message -----
>     From: "Albert Hartono" <hartonoa at cse.ohio-state.edu
>     <mailto:hartonoa at cse.ohio-state.edu>>
>     To: "cookie-users" <cookie-users at lists.mcs.anl.gov
>     <mailto:cookie-users at lists.mcs.anl.gov>>
>     Sent: Friday, May 1, 2009 6:59:44 PM GMT -06:00 US/Canada Central
>     Subject: [Cookie-users] Using PAPI on Cookie
>
>     Hi All,
>
>     Has anybody successfully tried using PAPI on Cookie to perform
>     hardware
>     counting (e.g., cache hits/misses)? I tried it a couple months
>     ago, but
>     (if my memory is not mistaken) some low-level instructions are not
>     supported by PAPI for the Xeon architecture, thus can't assess the
>     cache
>     behavior.
>
>     Thanks,
>     --Albert
>
>
>
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>

-- 
Boyana Norris, Computer Scientist    |   Email: norris at mcs.anl.gov 

Argonne National Laboratory          |   Phone: +1 (630) 252 7908 

http://www.mcs.anl.gov/~norris/      |   Fax:   +1 (630) 252 5986