Case Study: Weizmann Institute of Science achieves 30% higher cluster utilization and improved researcher productivity with Altair's PBS Professional

Weizmann Institute Chemistry Faculty Switches to PBS Professional

The Weizmann Institute of Science’s Chemistry Faculty operates a large, multi‑user HPC cluster (initially 1,242 cores, expanding to 3,096) and needed a workload management solution that could handle diverse workloads, complex user priorities, and hard/soft resource limits while maintaining consistently high performance. To meet these challenges they chose Altair’s PBS Professional for reliable workload management.

Altair implemented PBS Professional, quickly translating the Institute’s existing policies and providing smooth installation, custom plugins and support to enforce hard and soft limits. As a result, Altair’s PBS Professional delivered about a 30% increase in cluster utilization, greatly reduced queue wait times (users report 4–6× more jobs completed and waits shrinking from weeks to days), improved user productivity and a better overall user experience.

Weizmann Institute of Science

Mark Vilensky

Scientific Computing Manager, Chemical Physics Department