George C. Dimitriou

Technology and Strategy Consulting

Archive for the ‘Computing’

Report on Advancing Energy Efficiency in Data Centers.

October 22, 2008 By: George Category: Climate, Computing No Comments →

The U.S. Department of Energy (DOE) and U.S. Environmental Protection Agency (EPA) have released the report, “Energy Efficiency in Data Centers: Recommendations for Government-Industry Coordination,” which details the discussions and recommendations covered during a national strategy workshop on July 8, 2008. The workshop, convened by DOE and EPA, gathered representatives from industry, utilities, associations, and NGOs to identify the next steps for public and private collaboration toward advancing toward the goal of improved energy efficiency in data centers.

U.S. data centers consume a growing portion of the U.S. energy/electricity supply due to growing demand for the services they provide. Data centers used 61 billion kilowatt hours of electricity in 2006, representing 1.5% of all U.S. electricity consumption—double the amount consumed in 2000. Based on current trends, energy consumed by data centers will continue to grow by 12% per year.

To view the report or to learn more about the national data center energy efficiency information program, visit DOE’s Partnering with Computer Data Centers Web page and EPA’s Enterprise Server and Data Center Energy Efficiency Initiatives Web page.

Steve Wozniak Interview: Iconic Co-Founder on the iPod, iPhone, and Future for Apple.

October 08, 2008 By: George Category: Computing, Digital World No Comments →

In an exclusive interview with the Telegraph, Apple co-founder Steve Wozniak wonders how long the iPod can stay on top spot, laments the limitations of the iPhone 3G, agrees with the downgrade on Apple shares and believes that Web 2.0 revolution has been over-financed and could lead to mini-crash in technology stocks.

World Première in Vienna:Quantum Cryptography Secures Communication in a Commercial Network

October 08, 2008 By: George Category: Computing, Security No Comments →

For the first time the transmission of data secured by quantum cryptography is demonstrated within a commercial telecommunications network. 41 partners from 12 European countries have worked on realizing this quantum cryptographic network since April 2004. The overall objective is the integration of quantum cryptography into modern business applications. The work has been carried out within the Integrated EU-Project SECOQC (Development of a Global Network for Secure Communication Based on Quantum Cryptography), led by the Austrian Research Centers.



Read more here

Smashing Atoms at CERN and the Hunt for the ‘God’ Particle.

September 07, 2008 By: George Category: Computing, Trends No Comments →

On Wednesday, after 20 years of work by 10,000 scientists and engineers, researchers start the hunt for the God particle, or the Higgs boson, which could help explain the origin of mass in the universe.

The multibillion-dollar Large Hadron Collider will explore the tiniest particles and come ever closer to re-enacting the big bang, the theory that a colossal explosion created the universe.

The machine at CERN, the European Organization for Nuclear Research, promises scientists a closer look at the makeup of matter, filling in gaps in knowledge or possibly reshaping theories.



The project has attracted researchers of 80 nationalities, some 1,200 of them from the United States, which contributed $531 million of the project’s price tag of nearly $4 billion.

Kate McAlpine, 23, a Michigan State University graduate at CERN, has produced the Large Hadron Rap, a video clip that has attracted more than a million views on YouTube.

Discovering How Greeks Computed in 100 B.C.

August 04, 2008 By: George Category: Computing No Comments →

After a closer examination of a surviving marvel of ancient Greek technology known as the Antikythera Mechanism, scientists have found that the device not only predicted solar eclipses but also organized the calendar in the four-year cycles of the Olympiad, forerunner of the modern Olympic Games.

Antikythera Mechanism

The Antikythera Mechanism, sometimes called the first analog computer, was recovered more than a century ago in the wreckage of a ship that sank off the tiny island of Antikythera, north of Crete. Earlier research showed that the device was probably built between 140 and 100 B.C.

See also

Calendars with Olympiad display and eclipse prediction on the Antikythera Mechanism (Nature)

Video Presentation (Nature)

Microsoft’s Plans for Post-Windows OS.

July 31, 2008 By: George Category: Computing, Digital World No Comments →

Microsoft is incubating a non-Windows operating system known as Midori, which is being architected from the ground up to tackle challenges that Redmond has determined cannot be met by simply evolving its existing technology.

Midori is an offshoot of Microsoft Research’s Singularity operating system, the tools and libraries of which are completely managed code. Midori is designed to run directly on native hardware (x86, x64 and ARM), be hosted on the Windows Hyper-V hypervisor, or even be hosted by a Windows process.

According to published reports, Eric Rudder, senior vice president for technical strategy at Microsoft and an alumnus of Bill Gates’ technical staff, is heading up the effort.
One of Microsoft’s goals is to provide options for Midori applications to co-exist with and interoperate with existing Windows applications, as well as to provide a migration path.

Green Supercomputing.

July 25, 2008 By: George Category: Computing, Trends No Comments →

The purpose of the Green500 list is to provide a ranking of the most energy-efficient supercomputers in the world and serve as a complementary view to the TOP500.

For decades now, the notion of “performance” has been synonymous with “speed” (as measured in FLOPS, short for floating-point operations per second). This particular focus has led to the emergence of supercomputers that consume egregious amounts of electrical power and produce so much heat that extravagant cooling facilities must be constructed to ensure proper operation. In addition, the emphasis on speed as the performance metric has caused other performance metrics to be largely ignored, e.g., reliability, availability, and usability. As a consequence, all of the above has led to an extraordinary increase in the total cost of ownership (TCO) of a supercomputer.

Despite the importance of the TOP500 list, this list makes it much more difficult for the high-end computing community to focus on performance metrics other than speed. Therefore, to raise awareness to other performance metrics of interest, e.g., performance per watt and energy efficiency for improved reliability, a complementary list to the TOP500 – the Green500 list has been proposed.