HP XC System 2.x Software - Manual (Page 82)

6.4.8 srun Environment Variables
Many srun options have corresponding environment variables. An srun option, if invoked,
always overrides (resets) the corresponding environment variable (which contains each job
feature’s default value, if there is a default).
In addition, srun sets the following environment variables for each executing task on the
remote compute nodes:
SLURM_JOBID Specifies the job ID of the executing job.
SLURM_NODEID Specifies the relative node ID of the current node.
SLURM_NODELIST Specifies the list of nodes on which the job is actually running.
SLURM_NPROCS Specifies the total number of processes in the job.
SLURM_PROCID Specifies the MPI rank (or relative process ID) for the current
process.
Other environment variables important for srun — managed jobs include:
MAX_TASKS_PER_NODE Provides an upper bound on the number of tasks that
srun assigns to each job node, even if you allow
more than one process per CPU by invoking the srun
-O option.
SLURM_NNODES Is the actual number of nodes assigned to run your
job (which may exceed the number of nodes that you
explicitly requested with the
srun -N option).
6.4.9 Using srun with HP-MPI
The srun command can be used as an option in an HP-MPI launch command. Refer to
Section 8.3.3 for information about using srun with HP-MPI.
6.4.10 Using srun with LSF
The srun command can be used in an LSF launch command. Refer to Chapter 7 for
information about using srun with LSF.
6.5 Monitoring Jobs with the squeue Command
The squeue command displays the queue of running and waiting jobs (or "job steps"),
including the JobID used for scancel ), and the nodes assigned to each running job. It has a
wide variety of filtering, sorting, and formatting options. By default, it reports the running jobs
in priority order and then the pending jobs in priority order.
Example 6-2 reports on job 12345 and job 12346:
Example 6-2: Displaying Queued Jobs by Their JobIDs
$ squeue --jobs 12345,12346
JOBID PARTITION NAME USER ST TIME_USED NODES NODELIST
12345 debug job1 jody R 0:21 4 n[9-12]
12346 debug job2 jody PD 0:00 8
6-12 Using SLURM