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Raven: An Energy-Efficient Multicore Processor. Ben Keller BEARS 2014 Advisors: Bora Nikolic and Krste Asanovic. Motivation: Energy Is King. Performance = Power * Energy Efficiency (Tasks / Second) (Joules/Second) (Tasks/Joule). Power is fixed
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Raven: An Energy-Efficient Multicore Processor Ben Keller BEARS 2014 Advisors: Bora Nikolic and KrsteAsanovic
Motivation: Energy Is King Performance = Power * Energy Efficiency (Tasks / Second) (Joules/Second) (Tasks/Joule) • Power is fixed • For better performance, need better energy efficiency • Total energy is fixed • For “more” performance, need better energy efficiency BEARS 2014
Fine-Grained Voltage Scaling BEARS 2014
Raven3 System Diagram BEARS 2014