Submitting a Batch Job

Use sbatch to submit a script for batch processing. Your script runs when resources become available — you don't need to stay connected.

Basic Job Script

#!/bin/bash
#SBATCH --job-name=my_job                        # Job name
#SBATCH --account=public-users_v2                # Account name
#SBATCH --partition=power-general-shared-pool    # Partition name
#SBATCH --qos=public                             # QOS type
#SBATCH --time=02:00:00                          # Max run time (hh:mm:ss)
#SBATCH --ntasks=1                               # Number of tasks
#SBATCH --nodes=1                                # Number of nodes
#SBATCH --cpus-per-task=10                       # CPU cores required
#SBATCH --mem-per-cpu=4G                         # Memory per CPU
#SBATCH --output=my_job_%j.out                   # Output file (%j = job ID)
#SBATCH --error=my_job_%j.err                    # Error file
#SBATCH --mail-user=your@email.tau.ac.il         # Email address
#SBATCH --mail-type=END,FAIL                     # Notify on completion or failure

module purge
module load gcc/rocky9-gcc-fortran-14.2.0

# Your commands here
./my_program

Submit it:

sbatch my_job.sh

Job Arrays

If you need to submit many similar jobs, use a job array instead of separate sbatch calls. Arrays reduce scheduler load and are easier to manage.

#!/bin/bash
#SBATCH --job-name=array_job
#SBATCH --account=public-users_v2
#SBATCH --partition=power-general-shared-pool
#SBATCH --qos=public
#SBATCH --time=02:00:00
#SBATCH --ntasks=1
#SBATCH --nodes=1
#SBATCH --cpus-per-task=1
#SBATCH --mem-per-cpu=4G
#SBATCH --array=1-100                            # 100 tasks
#SBATCH --output=array_job_%A_%a.out             # %A = job ID, %a = task ID
#SBATCH --error=array_job_%A_%a.err

# Use SLURM_ARRAY_TASK_ID to differentiate tasks
./my_program input_${SLURM_ARRAY_TASK_ID}.txt

Each task runs independently with a different SLURM_ARRAY_TASK_ID. Output and error logs are separated per task.

Excluding Nodes

To exclude specific nodes from your job:

#SBATCH --exclude=compute-0-[100-103],compute-0-67

Chain Jobs

Use --depend to run a job only after another completes:

sbatch --depend=afterok:45001 next_step.sh