I'll try that out, thanks for the hint. Another related question: Does the PAPI software also use perfmon? http://icl.cs.utk.edu/papi/software/index.html
I managed to get that installed, and I am playing with it right now. A simple PAPI program that tries to measure the FLOPS for a simple for loop gets about 0.7GFLOPS, but linpack gets 8GFLOPS on the same dual Itanium 2 at 1.3GHz. The theoretical GFLOPS is around 12GF, I believe for 2 Itanium CPUs.
So, assuming the PAPI also uses perfmon, is it possible that perfmon is under-reporting the FLOPS? Is there a more reliable way to compute FLOPS?
Thanks, Ioan stephane eranian wrote:
Hello again, Which version of libpfm/pfmon are you using? I have seen this problem before. I think the name of the field has simply changed. Please try with libpfm-3.4 and pfmon-3.4, they should still work on older v2.6.29 and perfmon v2.0 itanium systems. You can grab them from our website: http://perfmon2.sf.net On Tue, Jul 15, 2008 at 7:18 PM, Ioan Raicu <[EMAIL PROTECTED]> wrote:Aha, OK, so I found a IA64 machine, with kernel 2.6.9, but I don't have root access to it. So I am installing from the sources: [EMAIL PROTECTED] libpfm-3.1]$ make ... gcc -Wall -I/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/examples/../include -O2 -g -c ita2_irr.c gcc -Wall -o ita2_irr -O2 -g -L/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/examples/../libpfm ita2_irr.o /mnt/autofs/home/iraicu/perfmon/libpfm-3.1/examples/../lib/libpfm.a -lm make[1]: Leaving directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/examples' make[1]: Entering directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/include' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/include' make[1]: Entering directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/docs' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/docs' [EMAIL PROTECTED] libpfm-3.1]$ make install make[1]: Entering directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/lib' mkdir -p /home/iraicu/usr/local/lib install -m 644 libpfm.a libpfm.so.3.1.0 /home/iraicu/usr/local/lib make[1]: Leaving directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/lib' make[1]: Entering directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/examples' make[1]: Nothing to be done for `install'. make[1]: Leaving directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/examples' make[1]: Entering directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/include' mkdir -p /home/iraicu/usr/local/include/perfmon install -m 644 perfmon/perfmon.h perfmon/perfmon_default_smpl.h perfmon/pfmlib.h perfmon/pfmlib_comp.h perfmon/pfmlib_comp_ia64.h perfmon/pfmlib_os.h perfmon/pfmlib_os_ia64.h perfmon/pfmlib_generic_ia64.h perfmon/pfmlib_itanium.h perfmon/pfmlib_itanium2.h /home/iraicu/usr/local/include/perfmon make[1]: Leaving directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/include' make[1]: Entering directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/docs' mkdir -p /home/iraicu/usr/local/share/man/man3 ( cd man3; install -m 644 *.3 /home/iraicu/usr/local/share/man/man3 ) make[1]: Leaving directory `/mnt/autofs/home/iraicu/perfmon/libpfm-3.1/docs' This was OK, looked normal. Then I try to compile pfmon, and I get: bash-3.00$ make make[1]: Entering directory `/mnt/autofs/home/iraicu/perfmon/pfmon-3.0/pfmon' gcc -Wall -I/home/iraicu/usr/local/include -I/usr/include/libelf -I. -O2 -g -D_REENTRANT -D_GNU_SOURCE -DDESTROOT=\"/home/iraicu/usr/local\" -DCONFIG_PFMON_GENERIC_IA64 -DCONFIG_PFMON_ITANIUM -DCONFIG_PFMON_ITANIUM2 -DCONFIG_PFMON_SMPL_MOD_RAW_IA64 -DCONFIG_PFMON_SMPL_MOD_COMPACT_IA64 -DCONFIG_PFMON_SMPL_MOD_EXAMPLE_IA64 -DCONFIG_PFMON_SMPL_MOD_BTB_IA64 -DCONFIG_PFMON_SMPL_MOD_DET_ITA -DCONFIG_PFMON_SMPL_MOD_DET_ITA2 -DPFMON_DEBUG -c pfmon.c gcc -Wall -I/home/iraicu/usr/local/include -I/usr/include/libelf -I. -O2 -g -D_REENTRANT -D_GNU_SOURCE -DDESTROOT=\"/home/iraicu/usr/local\" -DCONFIG_PFMON_GENERIC_IA64 -DCONFIG_PFMON_ITANIUM -DCONFIG_PFMON_ITANIUM2 -DCONFIG_PFMON_SMPL_MOD_RAW_IA64 -DCONFIG_PFMON_SMPL_MOD_COMPACT_IA64 -DCONFIG_PFMON_SMPL_MOD_EXAMPLE_IA64 -DCONFIG_PFMON_SMPL_MOD_BTB_IA64 -DCONFIG_PFMON_SMPL_MOD_DET_ITA -DCONFIG_PFMON_SMPL_MOD_DET_ITA2 -DPFMON_DEBUG -c pfmon_smpl.c gcc -Wall -I/home/iraicu/usr/local/include -I/usr/include/libelf -I. -O2 -g -D_REENTRANT -D_GNU_SOURCE -DDESTROOT=\"/home/iraicu/usr/local\" -DCONFIG_PFMON_GENERIC_IA64 -DCONFIG_PFMON_ITANIUM -DCONFIG_PFMON_ITANIUM2 -DCONFIG_PFMON_SMPL_MOD_RAW_IA64 -DCONFIG_PFMON_SMPL_MOD_COMPACT_IA64 -DCONFIG_PFMON_SMPL_MOD_EXAMPLE_IA64 -DCONFIG_PFMON_SMPL_MOD_BTB_IA64 -DCONFIG_PFMON_SMPL_MOD_DET_ITA -DCONFIG_PFMON_SMPL_MOD_DET_ITA2 -DPFMON_DEBUG -c pfmon_util.c gcc -Wall -I/home/iraicu/usr/local/include -I/usr/include/libelf -I. -O2 -g -D_REENTRANT -D_GNU_SOURCE -DDESTROOT=\"/home/iraicu/usr/local\" -DCONFIG_PFMON_GENERIC_IA64 -DCONFIG_PFMON_ITANIUM -DCONFIG_PFMON_ITANIUM2 -DCONFIG_PFMON_SMPL_MOD_RAW_IA64 -DCONFIG_PFMON_SMPL_MOD_COMPACT_IA64 -DCONFIG_PFMON_SMPL_MOD_EXAMPLE_IA64 -DCONFIG_PFMON_SMPL_MOD_BTB_IA64 -DCONFIG_PFMON_SMPL_MOD_DET_ITA -DCONFIG_PFMON_SMPL_MOD_DET_ITA2 -DPFMON_DEBUG -c pfmon_util_ia64.c pfmon_util_ia64.c: In function `pfmon_get_breakpoint_addr': pfmon_util_ia64.c:726: error: structure has no member named `_si_pad0' make[1]: *** [pfmon_util_ia64.o] Error 1 make[1]: Leaving directory `/mnt/autofs/home/iraicu/perfmon/pfmon-3.0/pfmon' make: *** [all] Error 2 I updated both config.mk for both libpfm and pfmon. Note that for libpfm, I had to modify the default compiler from icc to gcc, and I changed the install path. Any ideas on what I am missing, that is preventing pfmon from compiling? Thanks, Ioan stephane eranian wrote: Hello, You are missing the kernel support. Suse does have perfmon support in 2.6.x kernels but that is on Itanium systems only, I think. On Tue, Jul 15, 2008 at 6:50 PM, Ioan Raicu <[EMAIL PROTECTED]> wrote: Hi, I have installed the following RPMs. libpfm-3.4-1.fc10.x86_64.rpm pfmon-3.4-1.fc10.x86_64.rpm I then tried to run pfmon, but I got: [EMAIL PROTECTED]:~/perfmon> pfmon host kernel is missing perfmon support or /sys is not available My pfmon version is 3.4. I am also running Suse 10 on dual 54xx Xeon CPUs. [EMAIL PROTECTED]:~/perfmon> uname -a Linux gto 2.6.22.5-31-default #1 SMP 2007/09/21 22:29:00 UTC x86_64 x86_64 x86_64 GNU/Linux I assume that my kernel doesn't have the support for perfmon enabled, although I read online that Suse does have perfmon support in kernel 2.6.x. Are there instructions on how I can add perfmon support to my kernel? Or is it simply another RPM (which I couldn't find) I can install? Thanks in advance, Ioan -- =================================================== Ioan Raicu Ph.D. Candidate =================================================== Distributed Systems Laboratory Computer Science Department University of Chicago 1100 E. 58th Street, Ryerson Hall Chicago, IL 60637 =================================================== Email: [EMAIL PROTECTED] Web: http://www.cs.uchicago.edu/~iraicu http://dev.globus.org/wiki/Incubator/Falkon http://dsl-wiki.cs.uchicago.edu/index.php/Main_Page =================================================== =================================================== ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ perfmon2-devel mailing list perfmon2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/perfmon2-devel -- =================================================== Ioan Raicu Ph.D. Candidate =================================================== Distributed Systems Laboratory Computer Science Department University of Chicago 1100 E. 58th Street, Ryerson Hall Chicago, IL 60637 =================================================== Email: [EMAIL PROTECTED] Web: http://www.cs.uchicago.edu/~iraicu http://dev.globus.org/wiki/Incubator/Falkon http://dsl-wiki.cs.uchicago.edu/index.php/Main_Page =================================================== ===================================================
-- =================================================== Ioan Raicu Ph.D. Candidate =================================================== Distributed Systems Laboratory Computer Science Department University of Chicago 1100 E. 58th Street, Ryerson Hall Chicago, IL 60637 =================================================== Email: [EMAIL PROTECTED] Web: http://www.cs.uchicago.edu/~iraicu http://dev.globus.org/wiki/Incubator/Falkon http://dsl-wiki.cs.uchicago.edu/index.php/Main_Page =================================================== ===================================================
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