Running remote target application with root permissions

[Oren_S_]

Hi,

I'm using VTune Aplifier XE 2016 update 2. I installed a collector on an Ubuntu 12.04 Server machine and a full installation on an Ubuntu 12.04 Desktop machine. I successfully set up a password-less SSH from the host to the target.

The application I'm trying to run remotely requires root permission so I run it using sudo. I can locally run the application on the target machine by doing

sudo amplxe-cl <options> <target> <target options>

However, I don't seem to be able to run this application remotely using amplxe-gui, probably due to the root permissions. How can I configure the project in amplxe-gui to be able to do that?

Thanks,

  Oren

[David_A_Intel1]

Hi Oren:

If you create a script that includes the sudo command to run the app, e.g., sudo <target> <target options>, try configuring VTune Amplifier to launch the script.

[Oren_S_]

Thanks MrAnderson.

I did what you suggested and made sure the command I'm running doesn't require sudo password by editing /etc/sudoers. I verified that when I run the script it grants the application root privileges and doesn't ask for a password. However, when I locally run

amplxe-cl script

it complains that "sudo: must be setuid root". Any other suggestion?

Thanks,

  Oren

[David_A_Intel1]

Sorry, no.  For purposes of profiling, is there any chance to run the process under your account?  I.e., how do you debug the app?

Also, when you set up the password-less SSH, did you set it up for 'root'?  Can you?

[Peter_W_Intel]

@Oren S

1. If you run "sudo amplxe-cl <options> <target> <target options>", it meant that your remote machine ran application with "root" user.

2. If you run such as "amplxe-cl -target-system=ssh:peter@hsw-ep01 -c advanced-hotspots -knob collection-detail=stack-and-callcount -- /home/peter/primes.sh"

--primes.sh--

#!/bin/bash
source /opt/intel/compilers_and_libraries_2016/linux/bin/compilervars.sh intel64
/home/peter/problem_report/primes

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

-rwx------ 1 root root 12264 12  9 17:02 primes
-rwxr-xr-x 1 root root   127 1  12 16:34 primes.sh

You can run primes.sh with noon-root user, but should run primes under root or sudo. So, if

"sudo /home/peter/problem_report/primes" ; changed in primes.sh

But environment cannot be inherited after doing "source..."  :-(

3. If your application is long run, simply manually launch application in the target, then -

> amplxe-cl -target-system=ssh:peter@hsw-ep01 -c advanced-hotspots -d 20

You can find hotspots after doing system-wide profiling

4. OR: ran "root" account directly.

# amplxe-cl -target-system=ssh:root@hsw-ep01 -c advanced-hotspots -knob collection-detail=stack-and-callcount -- /home/peter/problem_report/primes.sh  ; use root account on both

It seems there is a problem if you use "sudo" mode, in my view.