2. Interconnection Technologies and Communication SoftwareClusters need to incorporate fast interconnection technologies in order to support high-bandwidth and low- latency inter-processor communication between cluster nodes. Slow interconnection technologies had always been a critical performance bottleneck for cluster computing. Today, improved network technologies help realize the construction of more efficient clusters.Selecting a cluster interconnection network technology depends on several factors, such as compatibility with the cluster hardware and operating system, price, and performance. There are two metrics to measure performance for interconnects: bandwidth and latency. Bandwidth is the amount of data that can be transmitted over the interconnect hardware in a fixed period of time, while latency is the time to prepare and transmit data from a source node to a destination node.
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