What Actually Happens When You Run sbatch in Slurm

If you work with HPC clusters, you likely use sbatch every day. You submit a script and expect it to run. But that single command triggers a full workflow inside Slurm. Understanding this internal flow helps you debug issues faster, optimize job performance, and better understand how your cluster behaves. ⸻ Step 1: Submitting the Job When you run: sbatch job.sh You are not starting the job. You are submitting a request to Slurm. The script includes: Resource requirements such as CPUs, memory, GP