The Scheduler's Gambit

Getting a job sized, placed and scheduled on Aqua: what the hardware offers, how long to ask for, and how the queue decides what runs next.

• Know Your Nodes — a field guide to Aqua's compute tiers (CPU batch, large-memory, H100 + A100 GPU, MIG slices, interactive). Read first.
• Guess, Request, Regret: The Art of Walltime — queue caps, scaling factors, the 2× rule, recovery toolkit.
• Walltime by Recipe: Worked Examples for Aqua — eight copy-paste PBS recipes from quick tests through chained jobs.
• The Queue Is Not a Line: How Aqua Ranks Your Job — the job_sort_formula, what fairshare_factor is, how backfilling lets a lower-ranked job start first, and what you can and cannot see.