CSE 691: Energy-Efficient Computing Lecture 20 review Anshul Gandhi 1307, CS building

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CSE 691: Energy-Efficient Computing Lecture 20 review Anshul Gandhi 1307, CS building

Lenovo: Laptop-level PM

VMware

Host Power Management 1.C-states to lower idle power 2.P-states to lower active power (+TurboBoost)

Host Power Management

Distributed Resource Scheduler Migrate VMs for priority and to maintain minimum resource requirements

Distributed Resource Scheduler

Distributed Power Management Migrate VMs for host power savings Requires WOL ! Different from HPM (local vs. distributed)

Distributed Power Management

HPM vs. DPM 8 hosts. 30min idle, 30min load, 30min idle

Google: Data center-level PM

Best practices 1.Thermostat 2.Airflow 3.Outside air 4.Don’t turn off servers – use them somehow.

Natural cooling LocationCoolingCompanies Hamina, FinlandSeawaterGoogle Dublin, IrelandOutside airAmazon, MS, Google Lulea, Sweden Outside air + server exhaust + hydro-electricity FB Rjukan, Norway Outside air +hydro-electricity Telemark Reykjavik, IcelandOutside airVerne Global

power_provisioning paper (Google)

Power breakdown

Average vs. Peak vs. Max

Power capping – extra deployment

DVFS 1.Simulation results 2.Latency?