Is a Beowulf cluster just another CoW?”
No. Although similar in layout, a Cluster of Workstations (CoW) is primarily a standard network, and its shared resources are used when individual operators are not using the network workstations. Unlike most common workgroup or network clusters, Beowulf clients typically do not have single users or operators; instead, they are used to process computations assigned by the server. Beowulf clusters are built for power and speed.