What a Scheduler Does

Enables effective/efficient utilization of cluster’s resources consistent with organization’s goals
Maintains queue(s) of jobs
Maximizes throughput of the jobs by processing all jobs as fast as possible
Typically, one job per cpu policy
Allows choice of various scheduling policies (e.g. First Come First Serve, Priority Based, Preemption)
Provides a suite of tools or utilities (graphical or command line) for end user to submit jobs, monitor jobs, abort jobs, suspend jobs, …
Manages a compute cluster by running various interacting ‘services’ on head nodes and compute nodes
Provides a programming interface to access ‘services’

Scheduler Managed Compute Cluster

Head node(s) typically maintains queues. Compute nodes are typically on a high speed network, to improve scalability of parallel jobs. Services running on nodes interact with each other to manage resources. End user tools communicate with services to submit/abort/suspend/etc. jobs.

Command Line Enhancements for Ansys Electromagnetics Desktop Products