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Cluster systems are made up of multiple computers, connected together to act as one. Each computer is considered called a node in the cluster and can have multiple processors (called processorscores). Users log in to the cluster through a limited number of head nodes and submit jobs to the many compute nodes. These systems are inherently parallel and can be greatly beneficial when your jobs are also parallelized.
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- Replicated storage
- 6 Petabytes of storage
- Accessible on lonestar and stampede systems
- $250 per terabyte (First 5 terabytes free for UT users)
- USE: Backup data, analysis results.
RANCH:
- Tape storage-------
- Archival storage- not replicated or backed up.
- 60 Petabytes of storage
- Immediate access can be difficult.
- USE: Long term archival of data. One of two copies.
Now on to how to use the lonestar cluster...