Skip to main content

Cluster

A set of machines, one head node and one or more compute nodes, launched together to run distributed work.

You launch a cluster from the EugoHPC Manager panel in EugoIDE. It exists until you shut it down, and it bills for as long as it runs whether or not it is doing anything.

Distributed computeFundamentals

Related terms

  • Head node: The machine in a cluster that coordinates work: it schedules tasks onto compute nodes and tracks their results.
  • Compute node: A machine in a cluster that executes tasks. Compute nodes do the work; the head node coordinates it.
  • EugoHPC Manager: The panel inside EugoIDE used to launch, monitor, and shut down clusters.
  • Interactive session: A running EugoIDE instance attached to your workspace. It is where you write code; a cluster is what runs it at scale.
  • High-performance computing (HPC): Running work across many machines at once so it finishes far sooner. The technique behind weather models, genomics, and large-scale simulation.
  • HPC as a service (HPCaaS): High-performance computing consumed on demand rather than owned: request compute for one run, stop paying when it ends. No hardware, no scheduler to run.
  • Job scheduler: The queueing system on a traditional HPC cluster that decides when a submitted job runs. Eugo has no queue: you launch a cluster and dispatch work to it.
  • Idle cluster: A cluster still running after its work finished. It bills at the full rate, and is the largest avoidable cost for most organizations.