Maui Cluster Scheduler

What Maui Cluster Scheduler is

Maui Cluster Scheduler is an open-source policy engine for controlling when, where, and how cluster jobs use processors, memory, and disk. It helps administrators manage job eligibility, priority, and placement, and supports advance reservations, QOS levels, backfill, and allocation management. Fairshare uses historical resource consumption when determining job feasibility and priority, with utilization targets for users, groups, accounts, classes, and QOS levels. Maui is a scheduler, not a resource manager: it directs a separate resource manager that handles job queues and compute nodes. The quick start names OpenPBS, PBSPro, Loadleveler, and SGE as systems Maui can query and control. End-user commands cover cancelling and inspecting jobs, viewing queues and resource availability, estimated start times, and usage statistics. Installation starts with a source archive, configure, and make; installing binaries system-wide is optional. The guide gives 20–50 MB of RAM and at least 20 MB of disk space for clusters up to 10 teraflops, along with an operational resource manager. The guide describes a shared-secret-key interface security model and says fuller encryption and GSI-like security were being enhanced.