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Google Moving Towards Energy-Proportional Datacenters – Paper Presented At ISCA

At Google, we operate large datacenters containing clusters of servers, networking switches, and more. While this gear costs a lot of money, an increasingly important cost — both in terms of dollars and environmental impact — is the electricity that drives the computing clusters and the cooling infrastructure.

“In a paper at International Symposium on Computer Architecture (ISCA), we push further towards the goal of energy-proportional computing by focusing on energy usage of high-bandwidth, highly-scalable cluster networking fabrics. This research considers a broad set of architectural and technological solutions to optimize energy usage without sacrificing performance. First, we show how Flattened Butterfly network topology uses less power since it uses less switching chips and fewer links than a comparable-performance network built using more conventional Fat Tree topology[…],” stated Google.

Reference: Research Paper


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