Introduction to Green Computing

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Introduction toGreen Computing

Pablo Hinojosa Nava

Athanasios Koutoulas


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Athanasios Koutoulas

Index

Reasons.

What is green computing?

Some data

How to do green.

-Datacenter

-Computer System

-Hardware-Software

-Human (copresenter)


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Reasons


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Reasons


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Reasons


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Green Computing?


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Green Computing

The study and practice of designing,manufacturing, using, and disposing ofcomputers, servers, and associated

subsystemssuch as monitors, printers,storage devices, and networking andcommunications systems efficiently andeffectively with minimal or no impact on theenvironment.Harnessing Green IT: Principles and Practices, SanMurugesan


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Green Computing

A multifaceted, global effort to reduce energyconsumption and promote sustainability.Andy Hopper- University of Cambridge


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Green Computing

How to save money and by the way work withthe environment.Pablo Hinojosa, University of Antwerp


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Data


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Money Data

120W each server ->

10kW each rack ->

10MW including cooling system, UPS, etc ->

$1500 each month


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Energy Data

6000 USA Datacenters =

61 billion kilowatt-hours (kWh) =

$4.5 Billion =

5.8 Million average U.S households.


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How to do Green

-Datacenter

-Computer System

-Hardware

-Software

-Human (copresenter)


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Datacenter


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Datacenter


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Datacenter

Problems:

-Infrastructure spend a lot of energy

-some regions (Manhattan) physicallyimpossible.

Solution:


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Datacenter


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Computer System


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Computer System

Problem:

-Computer Systems spend a lot of energy too

-Do anything at any energy cost

Solutions:

-Change the system

-Control the system


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Changing Computer System

Technologies:

- Cloud Computing

- Grid Computing


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Controlling Computer System

Technologies:

-Virtualization

-Power Management

-Be prepared to change demand

-Power off/sleep idle servers

Goal:consume the minimum amount of energyrequired to perform any task


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Hardware


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Hardware

Problems:

-1 PC is made from 1.8 tonnes of chemicals

-Sometimes one processor is too much

-Hardware made for performance

Solutions: Earth friendly computers.

-Recyclable materials

-Extend expected life-cycle-Embedded systems

-Sensor networks


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Hardware Technologies

Technologies:

-Circuits of hardware

-Power efficient CPU cores (turbo boost)

-Memory bank partitioning

-SSD hard drive technology


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Software


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Software

Problem:

-Algorithms do not care about energy

-Few energy-aware technologies

Solution:

-Energy efficient coding

-Optimization


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Human


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Computing profession

- Information systems can be a driving force

for sustainability improvements

- ACM members could play a critical role increating an information strategy

- Computing professionals have the skills

to help solve sustainability problems


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Human behavior

- 2 views:

- Rational

- Individual Rationality

- Collective Rationality- Social


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The Role of Information inRational and Social Behavior

- Incorporate environmental costs into prices

- Corporate sustainability reporting systems for

a more sustainable society

- Promote green purchasing decisions

- Provide information about the environmental

impact of personal decisions- Standards for data processing & storage for

minimizing the environmental consequences


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Conclusion

"ACM members, both collectively andindividually, must apply their computing

knowledge to contribute to the creation and

implementation of an information strategy for asustainable society."

Introduction to Green Computing

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