netstatnetstat -tulpn

(win+R) and type “resmon.exe”


China Is Becoming a Supercomputing Powerhouse

China Is Becoming a Supercomputing Powerhouse
U.S. tally of world’s most powerful supercomputers is at its lowest since Top500 list began
WSJ. Nov. 16, 2015

For the past two years, the country has been home to the world’s most powerful supercomputer, the National University of Defense Technology’s Tianhe-2 machine.

… Over the past decade, companies such as  Alphabet Inc. ’s Google, Inc. and Facebook Inc. have spent billions building massive data centers that operate as supercomputers for the Internet. These systems, however, aren’t optimized for the type of calculations that the Top500 list’s benchmarks test for.

… The Top500 results are important because they serve as a shorthand way of viewing international competitiveness in computer simulations. Originally used for scientific modeling in physics and chemistry, these systems are increasingly used to simulate consumer products—everything from automobiles to diapers.

… Tianhe-2, which has been ranked the world’s most powerful supercomputer since June 2013, is capable of performing 33.86 quadrillion calculations a second. The system ranked second on the list, Oak Ridge National Laboratory’s  Titan,  can perform 17.59 quadrillion calculations a second.

School District Unveils Pilot Computer Science Courses

School District Unveils Pilot Computer Science Courses for High Schoolers
Oct 29, 2015

Technology Education and Literacy in Schools

Unified School District’s newly implemented courses.
they pair computer science professionals with classroom teachers. This enables the teachers to get the professional development necessary to oversee these sometimes-complex computer science courses.

high school students are applying computer science concepts like variables and loops to build classic games using Berkeley’s drag-and-drop Snap programming language

Later in the year they’ll create their own Web applications using standard languages like CSS, Javascript and HTML

The future of cryptocurrencies

The future of cryptocurrencies: Bitcoin and beyond
The digital currency has caused any number of headaches for law enforcement. Now entrepreneurs and academics are scrambling to build a better version.
Andy Extance
30 September 2015

Today, there are some 14.6 million Bitcoin units in circulation. Called bitcoins with a lowercase ‘b’, they have a collective market value of around US$3.4 billion. Some of this growth is attributable to criminals taking advantage of the anonymity for drug trafficking and worse. But the system is also drawing interest from financial institutions such as JP Morgan Chase, which think it could streamline their internal payment processing and cut international transaction costs. It has inspired the creation of some 700 other cryptocurrencies. And on 15 September, Bitcoin officially came of age in academia with the launch of Ledger, the first journal dedicated to cryptocurrency research.

the community of developers and academics behind it is unique. “It’s a remarkable body of knowledge, and we’re going to be teaching this in computer science classes in 20 years, I’m certain of that.”

GIGAOM: the world’s largest cloud

Lessons learned from the world’s largest cloud
GIGAOM, Jul 1, 2014
Urs Hölzle — SVP, Technical Infrastructure and Google Fellow, Google

09:50 internally, a lot of our things are running close to the bare metal
10:00 virtualization does have some overhead
14:30 the cloud needs to be much easier to use, much more scalable, much more cost-effective, much more elastic

A Virtual Outbreak Offers Hints Of Ebola’s Future

A Virtual Outbreak Offers Hints Of Ebola’s Future
August 14, 2014

“I’ve spent a lot of time doing computer models of disease transmission, but rarely does it involve something in Africa. Africa is often overlooked,” says Bryan Lewis, a computational epidemiologist at Virginia Tech.

“Some of those factors are the ones that are hard to measure,” he says. “You’ve got to choose how much of this complexity you care to explicitly represent.”

“At the moment, these models — at least for Sierra Leone and Liberia — we aren’t putting in any mitigating factors.

Given that all this modeling is as much an art as a science, different groups working on the problem have been comparing notes. They’ve also been fielding calls from government officials and policymakers.

Martin Meltzer, who heads up the unit at the Centers for Disease Control and Prevention that’s been creating computer models of the outbreak, says that people always ask him the same two questions: “How many people are going to die, and when is this going to end?