Hello Carole, Sorry for the delay in responding.
On Sat, Jul 9, 2011 at 7:23 AM, Carole Wu <cwu...@gmail.com> wrote: > 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 Most likely, this means that your program created some child threads or processes and that process 19672 exited because it received a signal. Pfmon warns you because that process may not have run to completion. As you probably know, perfmon is now obsolete. I suggest you start using perf_events and the perf tool instead. They allow comparable measurements. The difference is that perf_events is now part of the standard kernels, incl. distro kernels. > /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 > > > ------------------------------------------------------------------------------ > All of the data generated in your IT infrastructure is seriously valuable. > Why? It contains a definitive record of application performance, security > threats, fraudulent activity, and more. Splunk takes this data and makes > sense of it. IT sense. And common sense. > http://p.sf.net/sfu/splunk-d2d-c2 > _______________________________________________ > perfmon2-devel mailing list > perfmon2-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/perfmon2-devel > > ------------------------------------------------------------------------------ 10 Tips for Better Web Security Learn 10 ways to better secure your business today. Topics covered include: Web security, SSL, hacker attacks & Denial of Service (DoS), private keys, security Microsoft Exchange, secure Instant Messaging, and much more. http://www.accelacomm.com/jaw/sfnl/114/51426210/ _______________________________________________ perfmon2-devel mailing list perfmon2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
