How to QLOGIN to a node that shared a specific job-id

Question

I have an existing qlogin job like this:

job-ID  prior   name       user   state submit/start at     queue        
-------------------------------------------------------------------------
3530770 0.50500 QLOGIN  jlsmith   r     10/15/2012 14:02:07 mri.q@compute-0-29.local

The above job was submitted using standard qlogin command in linux:

 $ qlogin 

What I want to do is to perform another qlogin so that the process are running in the same node with the above Job-ID 3530770.

The idea is that if it's done correctly in top command I can see the same running process submitted to the above job-ID.

Is there a way to do it?

Answer 1

Either

qlogin -l h=compute-0-29.local

or

qlogin -q "*@compute-0-29.local"

Should do the job

Answer 2

Based on talking to some HPC specialists at work and some Google searching on the subject (I also wanted to resume a job ID), it's not really possible if you've already submitted the job. You can qlogin -q <node name> into the node again, but you cannot resume the job on the shell screen.

If you are thinking of starting a new qlogin job, but you would like to be able to resume it at some future point, then you can use screen to do this.

1. Before you write qlogin into the command line at the front-end node, write screen. It should completely clear the terminal screen.

2. Now qlogin and put in your job script interactively.

3. Once your job has started running and you want to leave for a bit, press and hold Cntl while you press A and D. It should say that your screen was detached and take you back to the front-end node. If you qstat now, you should see your job running.

4. When you want to resume the job ID (see the running process on the terminal screen), in the front-end node write screen -r. You should be able to see your running process in the terminal again.

Note: if you do this several times and you accumulate multiple screens by accident (happens to me every time), when you screen -r you will get multiple choices instead of automatically resuming the one you want. To try each one out, type screen -r <name of screen listed> one at a time until you find the one you want (detach as specified above). To get rid of the extra screens, write screen -D -r <name>.

Hope this helps.