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Communications of the ACM

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The blog archive provides access to past blog postings from Communications of the ACM and other sources by date.

April 2015


From insideHPC

RSC PetaStream Powers Russian Academy of Sciences

RSC PetaStream Powers Russian Academy of Sciences

Today RSC Group announced the installation of a MVS-10P MP Petastream supercomputer at the Joint Supercomputer Center of the Russian Academy of Sciences (JSCC RAS). As is the first project in the Commonwealth of Independent States


From insideHPC

Fault Trees

Fault Trees

As datasets and simulations continue to increase in size and complexity, interactivity with the data should be maintained. It is important to understand how SIMD parallelism can be used when evaluating large fault tree expressions


From insideHPC

Video: Defending the Planet with Lustre

Video: Defending the Planet with Lustre

"Pleiades, one of the world's most powerful supercomputers, represents NASA's state-of-the-art technology for meeting the agency's supercomputing requirements, enabling NASA scientists and engineers to conduct modeling and simulation


From The Eponymous Pickle

The Magic Lab

The Magic Lab

Always interested in the concept of innovation spaces.  Here is another, see tags below for more about our use of them.I am the Director of the Innovation and Enterprise Research Lab (The Magic Lab). It has unique transdisciplinary


From Computational Complexity

PH Infinite Under a Random Oracle

Benjamin Rossman, Rocco Servedio and Li-Yang Tan show new circuit lower bounds that imply, among other things, that the polynomial-time hierarchy is infinite relative to a random oracle. What does that mean, and why is it important


From Computer Science Teacher – Thoughts and Information From Alfred Thompson

Sometimes It is How You Look At It

Sometimes It is How You Look At It

A couple of days ago I saw an interesting program on the Small Basic blog.  The featured program was one that let a beginner write a turtle graphics program. I liked the image it drew but frankly I found the code not as clear


From Schneier on Security

How Many Vulnerabilities Are there in Software?

How Many Vulnerabilities Are there in Software?

Dan Geer proposes some techniques for answering this question....


From insideHPC

Video: Seagate Lustre Update

Video: Seagate Lustre Update

In this video from LUG 2015 in Denver, Peter Bojanic from Seagate presents: Seagate Lustre Update. "Seagate powers four of the five 1 TB/sec filesystems in the world today."

The post Video: Seagate Lustre Update appeared first


From Putting People First

Putting technology in its place

Putting technology in its place

Kentaro Toyama is a former Microsoft Research Executive and now an associate professor at the University of Michigan. Toyama calls himself “a recovering technoholic”—someone who once was “addicted to a technological way of solving


From Putting People First

Essay Collection: Designing Democracy

Essay Collection: Designing Democracy

Designing Democracy: How designers are changing democratic spaces and processes An inquiry by the UK Design Commission March 2015 Abstract Featuring essays from leading designers, MPs and policymakers, ‘Designing Democracy’ asks


From The Eponymous Pickle

Talk: A Cognitive Architecture for Expertise

Talk: A Cognitive Architecture for Expertise

Expertise architecture, a favorite topic.Cognitive Systems Institute Group Speaker Series,Every Thursday 10:30 AM ET, tomorrow 4/16/2015 FORR: A Cognitive Architecture for Expertise, by Susan EpsteinCity University of New York


From The Eponymous Pickle

Gamification Leaders in the Enterprise

Gamification Leaders in the Enterprise

Enterprise Gamification is selling a report on:Leaders & Visionaries Rankings of Gamification PlatformsWe wanted to share some details from our first Gamification Industry Report that compared and ranked twelve gamification platforms


From The Eponymous Pickle

Twitter in India: Real time, Mobile First

Twitter in India: Real time, Mobile First

In K@W:   Podcast and transcript." ... Twitter has changed the advertising world, a development that company vice president Shailesh Rao describes as a positive-sum game for traditional and social media. .... Shailesh Rao, vice


From The Eponymous Pickle

Surge of Local Search

Surge of Local Search

In Search Engine Watch:   Searching 'near me' has surged considerably since 2011.  Searching is increasingly an automatic reaction to information needs anywhere.  And consumers want the intelligence to include all sensor and


From insideHPC

OLCF Moves Forward on Application Readiness for Summit Supercomputer

OLCF Moves Forward on Application Readiness for Summit Supercomputer

Today the Oak Ridge Leadership Computing Facility (OLCF) announced a significant step forward in the delivery of Summit, the next-generation supercomputer IBM will deliver in 2017 to greatly advance the nation's energy and science


From The Eponymous Pickle

Schank's XTOL Experiential Learning

Schank's XTOL Experiential Learning

A mention of Roger Schank, AI pioneer, founder of the 'AI Boom' company Cognitive Systems, who I recall was critical of our AI work in the 80s.  His work in AI scripting was fundamental. He later did research for Andersen Consulting


From The Eponymous Pickle

Hiding Corporate Data

Hiding Corporate Data

The broad idea is being seen in a number of places.  This addresses the 'lost laptop' problem, where corporate data could be compromised. A Way to Hide Corporate Data from HackersA system that keeps data on corporate computers


From insideHPC

Success Stories in Personalized Medicine

Success Stories in Personalized Medicine

Universities and hospitals like TGen and NMTRC are seeing an entirely new reality in patient care leveraging HPC clusters. Here are some success stories on on advances in personalized medicine.

The post Success Stories in Personalized


From Schneier on Security

Metal Detectors at Sports Stadiums

Metal Detectors at Sports Stadiums

Fans attending Major League Baseball games are being greeted in a new way this year: with metal detectors at the ballparks. Touted as a counterterrorism measure, they're nothing of the sort. They're pure security theater: They


From insideHPC

Podcast: Supercomputing Synthetic Transporter Proteins

Podcast: Supercomputing Synthetic Transporter Proteins

articleIn this podcast, Michael Grabe from the University of California - San Francisco describes how scientists designed completely from scratch a protein molecule that behaves like a slice of life.

The post Podcast: Supercomputing


From insideHPC

Video: There and Back Again – The Battle of Lustre at LANL

Video: There and Back Again – The Battle of Lustre at LANL

"A little over a year ago LANL’s HPC Division purchased and fielded our first general purpose InfiniBand-based Lustre parallel file system. This new Lustre deployment, being the first of several similar planned deployments, gave


From The Eponymous Pickle

Science of Segmentation

Science of Segmentation

The Science of Segmentation: What Questions Should You Be Asking Your Data? Attended this webinar.  Sponsored by Pivotal.  As the webinar suggests,  segmentation is an analytics need that most every company can use, and is an


From Putting People First

The woes of a corporate anthropologist [Novel]

The woes of a corporate anthropologist [Novel]

Satin Island: A novel by Tom McCarthy Knopf, 2015 From the author of Remainder and C (short-listed for the Man Booker Prize), and a winner of the Windham-Campbell Literature Prize, comes Satin Island, an unnerving novel that


From insideHPC

Video: Cray’s Storage History and Outlook – Lustre+

Video: Cray’s Storage History and Outlook – Lustre+

In this video from LUG 2015 in Denver, Jason Goodman from Cray presents: Cray’s Storage History and Outlook – Lustre+. "As a leader in open systems and parallel file systems, Cray builds on open source Lustre to unlock any industry


From Schneier on Security

John Oliver Interviews Edward Snowden

John Oliver Interviews Edward Snowden

Wow, what an amazing segment and interview....


From Computer Science Teacher – Thoughts and Information From Alfred Thompson

Why Would You Do That?

Why Would You Do That?

Students ask interesting questions. One of the more frequent questions they ask is “why would you do that?” Often it comes, not because you didn’t already explain why one would do something, but because the answer doesn’t really


From The Eponymous Pickle

Kroger and Omnichannel Balance

Kroger and Omnichannel Balance

Feedback in general is always a key interest, it can exist at many levels and sources.  It still remains difficult thing to combine different levels of feedback.  This is becoming more interesting as social data is integrated


From Computational Complexity

Baseball is More Than Data

As baseball starts its second week, lets reflect a bit on how data analytics has changed the game. Not just the Moneyball phenomenon of ranking players but also the extensive use of defensive shifts (repositioning the infielders


From insideHPC

Learn HPC Cluster Administration at LCI workshop

Learn HPC Cluster Administration at LCI workshop

Early bird registration rates end soon for the LCI workshop in Oklahoma. If you are a Linux system administrator new to HPC, this is the workshop for you!

The post Learn HPC Cluster Administration at LCI workshop appeared first


From insideHPC

Video: SDSC’s Data Oasis Gen II: ZFS, 40GbE, and Replication

Video: SDSC’s Data Oasis Gen II: ZFS, 40GbE, and Replication

"The second generation of SDSC’s Data Oasis Lustre storage is coming online to support Comet, a new XSEDE cluster targeted at the long tail of science. The servers have been designed with Lustre on ZFS in mind, and also update

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