Cluster computing : What networking technology to use?

Cluster computing is an example of interconnection technology. As the price of network hardware in a cluster can vary from almost free to several thousands of dollars per computing node, the decision is not a minor one in determining the overall price of the cluster. Many very effective clusters have been built from inexpensive products that are typically found in local area networks. However, some recent network products specifically designed for cluster communication have a price that is comparable to the cost of a workstation. The choice of network technology depends upon a number of factors, including price, performance, and compatibility with other cluster hardware and system software as well as communication characteristics of applications that will use the cluster.

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