Hi,
I would like to use perfmon2 to analyze parallel application performance. To
collect the number of instructions for the serial version, I run a parallel
application from the PARSEC benchmark suite with the following command.
carole@carole-software-lab-nehalem:~/parsec-2.1# pfmon --verbose
--no-cmd-output -eINSTRUCTIONS_RETIRED --follow-all --
/home/carole/parsec-2.1/pkgs/kernels/canneal/inst/amd64-linux.gcc/bin/canneal
1 100 200 100000.nets 32
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=0xffffffffbff0fff0
unavailable_pmds=0x7ff8fff0
[FIXED_CTRL(pmc16)=0xa pmi0=1 en0=0x2 any0=0 pmi1=1 en1=0x0 any1=0 pmi2=1
en2=0x0 any2=0] INSTRUCTIONS_RETIRED
[FIXED_CTR0(pmd16)]
pmd setup for event set0:
[pmd16 set=0 ival=0x0 long_rate=0x0 short_rate=0x0 mask=0x0 seed=0
randomize=n]
exec-pattern=*
[19672] started task:
/home/carole/parsec-2.1/pkgs/kernels/canneal/inst/amd64-linux.gcc/bin/canneal
1 100 200 100000.nets 32
follow_exec=y follow_vfork=y follow_fork=y follow_pthread=y
[19672] 64-bit binary
[19672] monitoring
/home/carole/parsec-2.1/pkgs/kernels/canneal/inst/amd64-linux.gcc/bin/canneal...
[19672] results are on terminal
[19672] activating monitoring
measurements started at Sat Jul 9 10:20:43 2011
[19672] task terminated by signal %
[19672] task terminated by signal 6, results may be incorrect
1523248 INSTRUCTIONS_RETIRED
/home/carole/parsec-2.1/pkgs/kernels/canneal/inst/amd64-linux.gcc/bin/canneal
(19672,19672,19671)
[19672] detached
sdesc chain to process:
created tasks : 0
maximum tasks : 1
maximum active tasks : 1
The output says "..., results may be incorrect"
Can anyone help to understand what's done wrong here? How can I get more
meaningful results for parallel application measurement?
Thanks in advance,
Carole
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