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Predicting Cost/Performance Trade-Offs for Whitney: A Commodity Computing Cluster

机译:预测惠特尼的成本/性能折衷:商品计算集群

摘要

Recent advances in low-end processor and network technology have made it possible to build a "supercomputer" out of commodity components. We develop simple models of the NAS Parallel Benchmarks version 2 (NPB 2) to explore the cost/performance trade-offs involved in building a balanced parallel computer supporting a scientific workload. We develop closed form expressions detailing the number and size of messages sent by each benchmark. Coupling these with measured single processor performance, network latency, and network bandwidth, our models predict benchmark performance to within 30%. A comparison based on total system cost reveals that current commodity technology (200 MHz Pentium Pros with 100baseT Ethernet) is well balanced for the NPBs up to a total system cost of around $1,000,000.
机译:低端处理器和网络技术的最新进展使得利用商品组件构建“超级计算机”成为可能。我们开发了NAS并行基准版本2(NPB 2)的简单模型,以探索在构建平衡的并行计算机以支持科学工作量方面涉及的成本/性能折衷。我们开发封闭形式的表达式,详细说明每个基准测试发送的消息的数量和大小。结合测量的单处理器性能,网络延迟和网络带宽,我们的模型预测基准性能在30%以内。根据总系统成本进行的比较表明,当前的商用技术(具有100baseT以太网的200 MHz Pentium Pro)对于NPB而言是很好的平衡,总系统成本约为1,000,000美元。

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