Hi Mark et al,
The error message you are seeing is a clearindication that VTune Amplifier XE GUI (Lightweight hotspot or any event based sampling analysis type) can't access the sampling driver.
In addition to sep3_1 driver, we load another driver called PAX. Could you please check if you pax driver is also loaded. (lsmod | grep pax)?
If it is loaded and if things are still not working then please try Peter's step and then
By default /opt/intel/vtune_amplifier_xe_2011/sepdk/src/insmod-sep3 script performs the following:
Checking for PMU arbitration service (PAX) ... detected.
PAX service is accessible to users in group "vtune".
Executing: insmod ./sep3_1-x32_64-184.108.40.206-5-defaultsmp.ko
Creating /dev/sep3_1 base devices with major number 247 ... done.
Creating /dev/sep3_1 percpu devices with major number 246 ... done.
Setting group ownership of devices to group "vtune" ... done.
Setting file permissions on devices to "660" ... done.
The sep3_1 driver has been successfully loaded.
If you are not part of the vtune group then you can add yourself to vtune group or use insmod-sep3 g option to give access to your group while loading the driver.
Please see the insmod-sep3 options:
Usage: ./insmod-sep3 [ options ]
where "options" are the following:
-g | --group group : restricts access to the sep3_1 driver to users in the specified group; if this option is not provided, the group "vtune" will be used
-p | --perms : fileperms restricts access to the sep3_1 driver based on the specified file permissions; if this option is not provided, then file permissions "660" (or equivalently, "ug+rw") will be used
-q | --query : returns 0 if driver is already loaded, non-zero otherwise; if driver is loaded, information on group ownership and file permissions on driver device will be displayed
-r | --reload: attempt to reload all relevant drivers; note that drivers will not unload if they are still in use
Can you also check if you are able to use Hotspot, Concurrencyand Locks&Waits analyses? These analysis types do not use the sampling driver so it should help us understand the problem more.
[peter@NHM02 src]$ cd /home/peter
[peter@NHM02 ~]$ /opt/intel/vtune_amplifier_xe_2011/bin64/amplxe-cl -collect lightweight-hotspots -duration 5
Using result path `/home/peter/r000lh'
Executing actions 75 % Generating a report
Elapsed Time: 5.053
Executing actions 100 % done