Interactive Processing

Interactive execution is performed using Slurm's interactive batch function. The tssrun command is provided as a tool for simple execution. You can execute jobs by specifying program and arguments to be executed after the command. Please refer to here for environment variables that are automatically set when a job is executed.

Command Description Examples Notes
tssrun Execute the program on the computing node tssrun ./a.out

Option Description Examples
-p QUEUENAME Specify the queue for batch processing tssrun -p gr19999b ./a.out
-t HOURS:MINUTES:SECONDS Specify the upper limit of elapsed time (unit: hours:minutes:seconds) tssrun -p gr19999b -t 1:0:0 ./a.out
--rsc p=PROCS:t=THREADS:c=CORES:m=MEMORY
or
--rsc g=GPU		 Specify the amount of job-allocated resources. For more details, click here tssrun -p gr19999b --rsc p=4:t=8:c=8:m=2G ./a.out
or
tssrun -p gr19999b --rsc g=1 ./a.out
--x11 Execute GUI program on computing nodes tssrun -p gr19999b --x11 xeyes
  • The part gr19999b in the example must be changed to your own queue name.
  • Wen you enter the command, several messages are displayed, then the program begins execution and the results are displayed.
  • If the computing nodes for interactive execution are congested, execution may not start immediately after the message is displayed.
  • Interactive execution with queue for personal and group courses is also available.

Example 1: For MPI program in System B

$ tssrun -p gr19999b --rsc p=4 ./a.out
salloc: Granted job allocation 102362
salloc: Waiting for resource configuration
salloc: Nodes cnode3 are ready for job
My name is cnode3. My rank is 1.
My name is cnode3. My rank is 2.
My name is cnode3. My rank is 3.
My name is cnode3. My rank is 0.
salloc: Relinquishing job allocation 102362

exit code: 0

Example 2: When executing GUI programs

$ tssrun -p gr10001b --x11 xeyes
salloc: Granted job allocation 102366
salloc: Waiting for resource configuration
salloc: Nodes <Computing Node name> are ready for job
（X application starts）

You can confirm the job information with an interactive execution by tssrun command.

Command Option Description Example
sacct -j JOBID Display job information for interactive execution sacct -j 102362

You must specify the job ID followed by the command and options. The job ID is the XXXXXXX part of salloc: Granted job allocation XXXXXXXX that is displayed when the tssrun command is executed.

If more than 24 hours elapsed after the interactive execution ends, it can not be displayed.

If an interactive execution terminates abnormally, the reason for the termination is displayed in the job information.

  • Termination due to memory limitation (due to pressure on overall node memory)

    Can't malloc: Cannot allocate memory

  • Termination due to elapsed time limit

    slurmstepd: error: *** STEP 102368.0 ON <computing node name> CANCELLED AT 2022-11-04T15:34:36 DUE TO TIME LIMIT ***