When I write "qsub -I -l walltime=24:00:00" before program execution, the terminal screen becomes unresponsive after program execution. Why?

[SSabu]

I keep walltime 24 hours by "qsub -I -l walltime=24:00:00" and then run my code in the allotted node.

After the code finishes running before walltime, the screen stops responding to keyboard and I can't write any commands. Due to that I can't logout of the node and release the resources too.

I closed the window and logged in through another terminal window. Then command qstat shows the node still working in STDIN mode. This confirms that the node is yet not released.

Please let me know where I am going wrong.

[AthiraM_Intel]

Hi,

Terminal time out may happen if there is no activity on the terminal for a long time.

STDIN means your code is still running in the node.

To get the node name, type the command below:

 qstat -xf <your_job_id>

Node name will be in the parameter called <exec_host>.

ssh <host_name> will help you to enter in to the node where your job is running.

An easy way to submit your job is to wrap up the whole code into a script file and submit from the login node.

Please follow the steps below:

Lets say, 'my_python_code.py' is the file you want to run.

1. From the login node, open a text file as 

vi my_job

2. Add the below details:

#PBS -l walltime=24:00:00

cd $PBS_O_WORKDIR 

python my_python_code.py

3. Save the file

4. Submit the job as :

qsub my_job

5. To check the status you can use 'qstat'

6. After completion, you will get an output file and error file where you will get the logs.

Hope this helps. Please feel free to come back to us in case you face any issue.

[AthiraM_Intel]

Hi,

Could you please confirm if the solution provided is helpful.

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[AthiraM_Intel]

Hi,

Since we have not received a response, we are closing this thread with the assumption that the issue got resolved. Feel free to open a new thread if you face further issues. 

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