Slurm Job Array Starter

Use this skill to submit a tiny real Slurm job array, wait for terminal accounting, and summarize per-task outputs in compact JSON.

What it does

• Renders and submits a minimal sbatch --array script on the live cluster.
• Polls queue state with squeue and waits for terminal task accounting with sacct.
• Reads each task's stdout and stderr logs and exports a per-task summary.

When to use it

• You need a verified starter for the job arrays leaf.
• You want a minimal example of per-task output capture and accounting on the current Slurm cluster.
• You need deterministic JSON for tests before scaling to larger batched workloads.

Example

python3 skills/hpc/slurm-job-array-starter/scripts/run_slurm_job_array.py \
  --partition cpu \
  --array-spec 0-1 \
  --sleep 1 \
  --out scratch/slurm-array/summary.json

Verification

• Skill-local tests: python3 -m unittest discover -s skills/hpc/slurm-job-array-starter/tests -p 'test_*.py'
• Expected summary: task_count == 2 and all task states are COMPLETED with ExitCode 0:0