both this and your previous question make it look like your benchmarks are
being killed abnormally by a signal. Do they run to completion when you
run them without pfmon? You might need to attach a debugger to see
exactly what is going wrong.
There aren't many peple working on perfmon2 anymore so you might not get
many detailed answers to questions like this.
Vince
On Mon, 11 Jul 2011, Carole Wu wrote:
> Hi,
>
> I am trying to analyze performance for a variety of parallel applications
> using perfmon2; however, i haven't had any success yet.
>
> For example, to collect the number of offcore requests, I used the following
> command (see below). But the printed message seems to suggest the reported
> count is a bogus value.
>
> Can anyone help with this?
>
> Thanks very much in advance,
> Carole
>
> pfmon --verbose --no-cmd-output -eOFFCORE_REQUESTS:ANY --system-wide
> --cpu-list=0 -- taskset -c 0 ./bin/canneal 1 10000 2000 100000.nets 32
>
> selected CPUs (1 CPU in set, 8 CPUs online): CPU0
> measuring at user privilege level ONLY
> 1 event set(s) defined
> long sampling periods(val/mask/seed): 0/0x0/0
> short sampling periods(val/mask/seed): 0/0x0/0
> unavailable_pmcs=0xffffffff8000fff0
> unavailable_pmds=0x6008fff0
> [PERFEVTSEL0(pmc0)=0x5180b0 event_sel=0xb0 umask=0x80 os=0 usr=1 anythr=0
> en=1 int=1 inv=0 edge=0 cnt_mask=0] OFFCORE_REQUESTS
> [PMC0(pmd0)]
> pmd setup for event set0:
> [pmd0 set=0 ival=0x0 long_rate=0x0 short_rate=0x0 mask=0x0 seed=0
> randomize=n]
> system wide session on 1 processor(s)
> vCPU0 -> pCPU0
> [32077] results are on terminal
> waiting for [32078] to exec
> starting process [32078]: taskset -c
> 0/home/carole/parsec-2.1/pkgs/kernels/canneal/inst/amd64-linux.gcc/bin/canne
> al 1 10000 2000 100000.nets 32
> CPU0 started monitoring
> process [32078] terminated by signal, results may be incorrect
> CPU0 stopped monitoring
> CPU0 22718 OFFCORE_REQUESTS:ANY
>
>
>
>
>
Vince
vweav...@eecs.utk.edu
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