Problem with this command

techsun

unread,

Mar 15, 2020, 6:38:18 AM3/15/20

to likwid-users

I'm unable to run this command

$likwid-perfctr  -C S0:1  -g BRANCH  ./a.out

output :

CPU name:	Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz
CPU type:	Intel Coffeelake processor
CPU clock:	2.21 GHz
ERROR - [./src/includes/perfmon_skylake.h:perfmon_init_skylake:72] No such file or directory.
Cannot zero 0x3F1 (0x3F1)
ERROR - [./src/includes/perfmon_skylake.h:perfmon_init_skylake:77] No such file or directory.
Cannot zero 0x3F7 (0x3F7)
ERROR: No event in given event string can be configured.
       Either the events or counters do not exist for the
       current architecture. If event options are set, they might
       be invalid.

Thomas Gruber

unread,

Mar 16, 2020, 8:34:26 AM3/16/20

to likwid-users

Can you please send the output of:

$ likwid-perfctr -C S0:1 -g BRANCH -V 3 ./a.out

Best regards,
Thomas

techsun

unread,

Mar 17, 2020, 5:58:45 AM3/17/20

to likwid-users

$ likwid-perfctr -C S0:1 -g BRANCH -V 3 ./a.out

output :

--------------------------------------------------------------------------------

CPU name: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz

CPU type: Intel Coffeelake processor

CPU clock: 2.21 GHz

CPU family: 6

CPU model: 158

CPU short: skylake

CPU stepping: 10

CPU features: FP ACPI MMX SSE SSE2 HTT TM RDTSCP MONITOR VMX EIST TM2 SSSE FMA SSE4.1 SSE4.2 AES AVX RDRAND AVX2 RDSEED SSE3

CPU arch: x86_64

--------------------------------------------------------------------------------

PERFMON version: 4

PERFMON number of counters: 4

PERFMON width of counters: 48

PERFMON number of fixed counters: 3

--------------------------------------------------------------------------------

[likwid-pin] Main PID -> core 1 - OK

DEBUG - [HPMinit:98] Adjusting functions for x86 architecture in daemon mode

DEBUG - [access_client_startDaemon:136] Starting daemon /usr/local/sbin/likwid-accessD

DEBUG - [access_client_startDaemon:184] Still waiting for socket /tmp/likwid-25745 for CPU 1...

DEBUG - [access_client_startDaemon:196] Successfully opened socket /tmp/likwid-25745 to daemon for CPU 1

DEBUG - [HPMaddThread:143] Adding CPU 1 to access module

DEBUG - [access_client_read:331] Got error 'failed to read/write register' from access daemon reading reg 0x63B at CPU 1

DEBUG - [power_init:401] Deactivating perf register for RAPL domain PP0

DEBUG - [access_client_read:331] Got error 'failed to read/write register' from access daemon reading reg 0x61C at CPU 1

DEBUG - [power_init:375] Deactivating info register for RAPL domain DRAM

DEBUG - [access_client_write:421] Got error 'failed to read/write register' from access daemon writing reg 0x3F1 at CPU 1

ERROR - [./src/includes/perfmon_skylake.h:perfmon_init_skylake:72] No such file or directory.

Cannot zero 0x3F1 (0x3F1)

DEBUG - [access_client_write:421] Got error 'failed to read/write register' from access daemon writing reg 0x3F7 at CPU 1

ERROR - [./src/includes/perfmon_skylake.h:perfmon_init_skylake:77] No such file or directory.

Cannot zero 0x3F7 (0x3F7)

Executing: ./a.out

DEBUG - [perfmon_addEventSet:1944] Currently 1 groups of 2 active

DEBUG - [perfgroup_readGroup:852] Reading group BRANCH from /usr/local/share/likwid/perfgroups/skylake/BRANCH.txt

DEBUG - [access_client_write:421] Got error 'failed to read/write register' from access daemon writing reg 0x38D at CPU 1

DEBUG - [checkAccess:267] Counter FIXC0 not writeable on this machine

DEBUG - [perfmon_addEventSet:2052] Cannot access counter register FIXC0

DEBUG - [access_client_write:421] Got error 'failed to read/write register' from access daemon writing reg 0x38D at CPU 1

DEBUG - [checkAccess:267] Counter FIXC1 not writeable on this machine

DEBUG - [perfmon_addEventSet:2052] Cannot access counter register FIXC1

DEBUG - [access_client_write:421] Got error 'failed to read/write register' from access daemon writing reg 0x38D at CPU 1

DEBUG - [checkAccess:267] Counter FIXC2 not writeable on this machine

DEBUG - [perfmon_addEventSet:2052] Cannot access counter register FIXC2

DEBUG - [access_client_write:421] Got error 'failed to read/write register' from access daemon writing reg 0x186 at CPU 1

DEBUG - [checkAccess:267] Counter PMC0 not writeable on this machine

DEBUG - [perfmon_addEventSet:2052] Cannot access counter register PMC0

DEBUG - [access_client_write:421] Got error 'failed to read/write register' from access daemon writing reg 0x187 at CPU 1

DEBUG - [checkAccess:267] Counter PMC1 not writeable on this machine

DEBUG - [perfmon_addEventSet:2052] Cannot access counter register PMC1

ERROR: No event in given event string can be configured.

Either the events or counters do not exist for the

current architecture. If event options are set, they might

be invalid.

DEBUG - [HPMfinalize:170] Removing CPU 1 from access module

Thomas Gruber

unread,

Mar 17, 2020, 6:16:24 AM3/17/20

to likwid-users

Hi,

Your system does not allow accesses to the hardware registers. My guess would be that your system is booted in "Secure Mode". You have to turn it off in the BIOS.

Another option would be the perf_event backend because it uses a different access mechanism. (ACCESSMODE=perf_event in config.mk, make distclean, make, make install). Maybe you have to adjust the setting in /proc/sys/kernel/perf_event_paranoid to 0 (echo 0 | sudo tee /proc/sys/kernel/perf_event_paranoid).

Best,
Thomas

techsun

unread,

Mar 17, 2020, 11:19:28 AM3/17/20

to likwid-users

Thank you so much!!!!

Thomas Gruber

unread,

Mar 18, 2020, 7:08:55 AM3/18/20

to likwid-users

Hi,

glad to read that it works now. Which method have you chosen? Deactivate Secure Boot or use the perf_event backend?

Best,
Thomas

Sunil Singh

unread,

Mar 18, 2020, 7:15:08 AM3/18/20

to likwid...@googlegroups.com

Perf_event.

Thanks once again.

--

---
You received this message because you are subscribed to the Google Groups "likwid-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to likwid-users...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/likwid-users/adfddbe2-795d-4361-922c-0a16717ef1b7%40googlegroups.com.

Reply all

Reply to author

Forward