SC is the International Conference for
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SCHEDULE: NOV 12-18, 2011

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GreenSlot: Scheduling Energy Consumption in Green Datacenters

SESSION: Power Optimization


TIME: 1:30PM - 2:00PM

AUTHOR(S):Íñigo Goiri, Kien Le, Md. E. Haque, Ryan Beauchea, Thu D. Nguyen, Jordi Guitart, Jordi Torres, Ricardo Bianchini


In this paper, we propose GreenSlot, a parallel batch job scheduler for a datacenter powered by a photovoltaic solar array and the electrical grid (as a backup). GreenSlot predicts the amount of solar energy that will be available in the near future, and schedules the workload to maximize the green energy consumption while meeting the jobs' deadlines. If grid energy must be used to avoid deadline violations, the scheduler selects times when it is cheap. Our results for production scientific workloads demonstrate that GreenSlot can increase green energy consumption by up to 117% and decrease energy cost by up to 39%, compared to a conventional scheduler. Based on these positive results, we conclude that green datacenters and green-energy-aware scheduling can have a significant role in building a more sustainable IT ecosystem.

Chair/Author Details:

Íñigo Goiri - Universitat Politecnica de Catalunya

Kien Le - Rutgers University

Md. E. Haque - Rutgers University

Ryan Beauchea - Rutgers University

Thu D. Nguyen - Rutgers University

Jordi Guitart - Universitat Politecnica de Catalunya

Jordi Torres - Universitat Politecnica de Catalunya

Ricardo Bianchini - Rutgers University

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The full paper can be found in the ACM Digital Library

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