A computer cluster refers to a group of interconnected computers that work together as a single system to perform a specific task or set of tasks. Clusters are often used for high-performance computing (HPC) applications such as scientific simulations, data analysis, and complex modeling.
In a cluster, each computer, or node, typically runs its own operating system and software applications but shares resources such as storage and memory with other nodes in the cluster. The nodes are connected by a high-speed network that allows them to communicate and exchange data quickly and efficiently.
Clusters can be classified into different types based on their architecture, such as shared-memory clusters, distributed-memory clusters, or hybrid clusters. The choice of architecture depends on the specific needs of the application and the resources available to the cluster.