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April 2013 Issue of Linux Journal: High Performance Computing

By Shawn Powers 

When I was in college, there was a rich kid down the hall who had a computer with 16MB of RAM. Before you scoff, you need to think back to 1993. more>>

New Products

By James Gray 

Please send information about releases of Linux-related products to newproducts@linuxjournal.com or New Products c/o Linux Journal, PO Box 980985, Houston, TX 77098. Submissions are edited for length and content.

Watson Supercomputer logo

IBM's New SMB Cloud-making Machines

By Shawn Powers 

This week IBM released a bunch of new hardware, including 8 new Power Systems, 3 PureSystems models, and new storage technology. This is good news for small and medium businesses, because it means the same powerful hardware that powers Watson (http://www-03.ibm.com/innovation/us/watson/) is now available at prices designed to compete with commodity hardware from other vendors. more>>

Scientific Visualization with NCL

By Joey Bernard 

Many of my previous articles have looked at software packages that do scientific calculations and generate scientific results. But, columns of numbers are nearly impossible to make sense of—at least, by regular human beings. So what can you do? The answer is visualization. more>>

Extending GlusterFS with Python

By Jeff Darcy 

Are you a Python programmer who wishes your storage could do more for you? Here's an easy way to add functionality to a real distributed filesystem, in your favorite language. more>>

Biggest Data

By Doc Searls 

Turns out maps matter.

That's always been the case for me. I'm a map freak. I own hundreds of paper maps in various specialties, plus many atlases, books on geography, geology and other geo-obsessions. But I'm no longer an edge case, because maps are proving to be essential on smartphones, which today approaches a billion or more people. Digital maps on phones are now among the core portfolio of smartphone apps, alongside voice, text, calendar and contacts. What could be more mobile about a phone than a map to help the user look things up and get around? more>>

Readers' Choice Awards

By Shawn Powers 

Readers' Choice votes are in! Compare your favorites with other readers and see if you're the oddball or everyone else is! more>>

System Administration of the IBM Watson Supercomputer

By Aleksey Tsalolikhin 

System administrators at the USENIX LISA 2011 conference (LISA is a great system administration conference, by the way) in Boston in December got to hear Michael Perrone's presentation "What Is Watson?" more>>

Linux Systems Capacity Planning

By L J Staff 

This video is from our good friends at USENIX's recent LISA conference in Boston.

"Linux Systems Capacity Planning: Beyond RRD and top", by Rodrigo Campos more>>

Readers' Choice Awards 2011

By Shawn Powers 

The votes are in, the tallies are counted, the hanging chads have been evaluated, and we have our winners. This year holds a few surprises, a couple dominant players and as much open source as you can handle. We don't encourage gambling here at Linux Journal, but if you had an office pool going for pizza money, it's officially too late to make your wager.

Data Deduplication with Linux

By Petros Koutoupis 

Lessfs offers a flexible solution to utilize data deduplication on affordable commodity hardware. more>>

Parallel Programming with NVIDIA CUDA

By Alejandro Segovia 
Using hardware acceleration via General Programming on stock GPUs (GPGPU), I've sped up my algorithms by more than tenfold. This article shows how you can achieve these results too! more>>
The Large Hadron Collider

The Large Hadron Collider

By Carl Lundstedt 
Muons and mesons and quarks—oh my! Never fear, Dorothy, the Large Hadron Collider and open-source software will save the day. more>>
2010 Readers' Choice Awards

Readers' Choice Awards 2010

By James Gray 

The votes are in! Read on to find out how your favorites fared in this year's awards. more>>

Large Hadron Collider

The Large Hadron Collider

By Carl Lundstedt 

The following article is featured in the November issue of Linux Journal (#199). Subscribe to see more articles like this and have them delivered to you every month! http://www.linuxjournal.com/subscribe more>>

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