Terminology
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Node
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A node is the basic building block of a cluster.
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Nodes are a type of computer called a server.
- They generally have more power than a typical computer.
- They may have specialty hardware like graphical processing units.
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Two types of nodes
- Head Node – a server used for logging in and submitting jobs.
- Compute Node -- a server that carries out the computational work.
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Core – an individual processor on a computer
- The cluster’s nodes have many cores (typically 40 each)
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Memory
- The random-access memory on a node
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Storage
- Disk storage visible from a node