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Cluster Computing

What is Cluster Computing?

Definition: Cluster

A cluster is a set of computers that are connected together and share resources as if they were one gigantic computer.

How Does Cluster Computing WorK?

Definition: Parallel Processing

Parallel Processing is the act of carrying out multiple tasks simultaneously to solve a problem. This is accomplished by dividing the problem into independent subparts, which are then solved concurrently.

Definition: Jobs

Jobs denote the independent subparts.

Why use Cluster Computing?

Pros

  • Speeds up simulations by allowing iterations to be run simultaneously.
  • Provides more resources for computations.
    • e.g. CPU Cores, RAM, Hard Drive Space, and Graphics Cards (GPUs).
  • Nightly snapshots/backups of files.
  • Extends the lifespan of your computer.

Cons

  • Simulations are not instantly run.
    • Need to "queue" for resources.
  • Higher barrier of entry due to knowledge requirements.
  • Poorly handles opening and closing data sets.
  • Adding or updating software is complex.