Exploring the green blade
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Exploring The Green Blade. Ken Lutz University of California, Berkeley LoCal Retreat, June 8, 2009. Motivation. To Realize An Energy Responsive Blade and Cluster Consolidate Load within the cluster Turn OFF Underutilized Blades Explore a smaller unit of replication

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Exploring The Green Blade

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Exploring the green blade

Exploring The Green Blade

Ken Lutz

University of California, Berkeley

LoCal Retreat, June 8, 2009


Motivation

Motivation

  • To Realize An Energy Responsive Blade and Cluster

    • Consolidate Load within the cluster

    • Turn OFF Underutilized Blades

    • Explore a smaller unit of replication

    • Run on Battery providing Demand Response

  • Platform for System Level Experiments


Server power consumption

Server Power Consumption

Maybe we can explore a new data point


Atom blade

ATOM Blade

  • Explore a New Building Block

  • Inexpensive ($100) and Low Power (25W)

  • Based on the Intel ATOM 330 CPU

    • Dual Core – 45nm

    • 8W MAX

  • Smaller Unit of Replication so expect a cluster will have more units to do the same work

  • Fine Grain Control


Energy responsive node

Energy Responsive Node

Node On/OFF

Battery Backup

AC ON/OFF

ATOM

UPS Controller


Local atom cluster

LoCal ATOM Cluster

  • (4) ATOM Motherboards – Almost 1U

    • 160MB Disk Drive

    • 10/100 Ethernet

    • 2GB DRAM

    • USB etc

    • DC-DC converter with UPS switch and Battery

  • Where is the power going?


Room for improvement

Room for Improvement…

ATOM CPU

Bridge Chip

Dc-DC Converter

Clock Generator

TV Encoder

Audio Codec

Intel I/O controller hub Chip


No heat sinks

No Heat Sinks

Not Steady State


Idle power

Idle Power

CPU Power Control Schemes may have a limited effect


Conclusion

Conclusion

  • The goal is to explore a new data point in cluster design

  • Small nodes allow fine grained load distribution

  • Ability to turn nodes off

  • Explore limited but distributed energy storage

  • Learn about the system level problems


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