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Date
Whether it is feedback from our website or feedback after a presentation, we’ve often heard “I’m a code writer or a software developer, how could my project be 'green general*.' There are no aspects of sustainability that I can affect with my code.” Our answer is - you’d be surprised how much you, as a programmer, can affect sustainability or greenality (the degree to which an organization has considered environmental (green) factors that affect its projects during the entire life cycle and beyond).
For instance, and I am sure that the software geeks out there know this, but the way you write software can influence the power used by the computer's processor. If you can reduce the “energy” required to execute your instructions, you can reduce the overall energy required to run a data center, therefore saving precious resources. So how does one do that?
I have written and am teaching a graduate course at Boston University called “Green IT”. I am using a new book this semester called Harnessing Green IT: Principles and Practices, edited by San Murugesan and G.R. Gangadharan, @ 2012 John Wiley and Sons Ltd. In Chapter 2, Bob Steigerwald and Abhishek Agarwal from Intel talk about some energy saving software techniques. As an example, for DVD playback applications, “you could implement read-ahead buffering methodology and allow the optical drive to take breaks rather than continuously spinning. “ They also talk about; computational efficiency - using more efficient algorithms and multi-threading, data efficiency – effectively using cache memories, and idle efficiency and evaluating a monitoring software impact to platform power - using the PowerCfg utility in Windows7 to determine whether an application has increased the platform timing resolution, thus decreasing the amount of idle time used to reduce power consumption.
Just when you thought that what you do doesn’t have any effect on greenality, you find out that using some software methodologies, designs and development tools, you can have a positive effect on reducing the energy required to process data. That is a positive effect on the environment and it reduces costs, all the while people are “doing the right thing”, plant, people, profits.
* In our book, we have cover the “spectrum of green” from Green by Definition – building a wind farm, Green by Project Impact – Boston’s Big Dig, Green by Product Impact – Keurig’s K-Cups and Green General – a new software release.
I just love this picture, and I realize the caption is a little small so I will explain the jist. This a a mock up of what the RAND Corporation thought the home computer might look like in 2004. Looks like this was published in the 1950's.
Posted
by
Dave Shirley
on: January 30, 2013 12:21 PM |
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