Partitions
Partition is the term used by Slurm to reference queues. Depending on your job requirements, select the appropriate partition:
| Partition | Nodes | Data | Cores per Node | Mem per Node (GB) | GPU Type | Time Limit (hr) | Priority | Comments | Location |
|---|---|---|---|---|---|---|---|---|---|
| anagpu | 16 | ALL | 128 | NVIDIA GTX 1080Ti | 48 | B054 (SRCF) | |||
| psanagpu(101 - 106) | 12 | ||||||||
| psanagpu(107 - 116) | 16 | ||||||||
| *anabatch | Default |
anagpu:This 16 node partition is for individuals wishing to use GPU resources
The information can be provided by the sinfo command:
sinfo
psslurm ~ # sinfo PARTITION AVAIL TIMELIMIT NODES STATE NODELIST anagpu* up infinite 1 drain psanagpu107 anagpu* up infinite 6 idle psanagpu[101-104,110,113]
The * following the name means default partition (queue) is anagpu
Job Submission
There are 2 ways to submit a job on the cluster. The main way is by using the sbatch command to take full advantage of the computing power, and the other is to submit an interactive job.
Sbatch
The commands specified in the script file will be ran on the first available compute node that fits the resources requested.
The following is a sample submission script (tst_script):
sbatch
[omarq@psslurm conda 06:10:08]cat tst_script #!/bin/bash # #SBATCH --job-name=ânameâ # Job name for allocation #SBATCH --output=âfilenameâ # File to which STDOUT will be written, %j inserts jobid #SBATCH --error=âfilenameâ # File to which STDERR will be written, %j inserts jobid #SBATCH --partition=anagpu # Partition/Queue to submit job #SBATCH --gres=gpu:1080ti:1 # Number of GPUs #SBATCH --nodes=1 # number of nodes. #SBATCH --mail-user='username'@slac.stanford.edu # Receive e-mail from slurm #SBATCH --mail-type=ALL # Type of e-mail from slurm; other options are: Error, Info. # srun -l hostname srun python ExampleMultipleChaperones.py [omarq@psslurm conda 06:10:11]sbatch tst_script Submitted batch job 200
sbatch tst_scirpt
Prior to submitting a batch job it is recommended to check that jobs that exist on the system by using the squeue command:
squeue
psslurm ~ # squeue
JOBID PARTITION NAME USER ST TIME NODES NODELIST(REASON)
187 anagpu ExampleM omarq R 0:04 1 psanagpu110
The ST (job state) field shows that jobid 187 is currently running (R).
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