AMD’s “heterogeneous Uniform Memory Access” coming this year in Kaveri

AMD AMD wants to talk about HSA, Heterogeneous Systems Architecture (HSA), its vision for the future of system architectures. To that end, it held a press conference last week to discuss what it’s calling “heterogeneous Uniform Memory Access” (hUMA). The company outlined what it was doing, and why, both confirming and reaffirming the things it has been saying for the last couple of years. The central HSA concept is that systems will have multiple different kinds of processor, connected together and operating as peers. The two main kinds of processor are conventional: versatile CPUs and the more specialized GPUs. Modern GPUs have enormous parallel arithmetic power, especially floating point arithmetic, but are poorly-suited to single-threaded code with lots of branches. Modern CPUs are well-suited to single-threaded code with lots of branches, but less well suited massively parallel number crunching. Splitting workloads between a CPU and a GPU, using each for the workloads it’s good at, has driven the development of general purpose GPU (GPGPU) software and development. Read 20 remaining paragraphs | Comments

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AMD’s “heterogeneous Uniform Memory Access” coming this year in Kaveri

Ubuntu 13.04 boosts graphics performance to prepare for phones, tablets

Ubuntu 13.04. The stable release of Ubuntu 13.04 became available for download today, with Canonical promising performance and graphical improvements to help prepare the operating system for convergence across PCs, phones, and tablets. “Performance on lightweight systems was a core focus for this cycle, as a prelude to Ubuntu’s release on a range of mobile form factors,” Canonical said in an announcement today. “As a result 13.04 delivers significantly faster response times in casual use, and a reduced memory footprint that benefits all users.” Named “Raring Ringtail,”—the prelude to Saucy Salamander —Ubuntu 13.04 is the midway point in the OS’ two-year development cycle. Ubuntu 12.04, the more stable, Long Term Support edition that is supported for five years, was released one year ago. Security updates are only promised for 9 months for interim releases like 13.04. Support windows for interim releases were recently cut from 18 months to 9 months to reduce the number of versions Ubuntu developers must support and let them focus on bigger and better things. Read 11 remaining paragraphs | Comments

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Ubuntu 13.04 boosts graphics performance to prepare for phones, tablets

Apple supercharges R&D with extra $500 million spent in last six months

Apple product sales are flattening out a bit compared to last year, save for iPads. Casey Johnston Apple boosted its research and development spending by 33 percent in the second quarter of 2013 compared to the same period last year, according to a quarterly report filed with the Securities Exchange Commission. If the rate of spending continues, Apple could drop over $4 billion on R&D this fiscal year. During the quarter ending March 30, 2013, Apple spent $1.119 billion on R&D, compared to $841 million from a year ago. In the first six months of its fiscal year, Apple has spent $2.129 billion total on R&D, while it spent only $1.599 billion last year. Apple stated that the spending for the quarter was up 33 percent due to “an increase in headcount” and “expanded R&D activities.” The statement went on to say that the “focused investments” in R&D are “directly related to timely development of new and enhanced products that are central to the Company’s core business strategy. As such, the Company expects to make further investments in R&D to remain competitive.” Read 1 remaining paragraphs | Comments

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Apple supercharges R&D with extra $500 million spent in last six months

BitTorrent Sync creates private, peer-to-peer Dropbox, no cloud required

BitTorrent today released folder syncing software that replicates files across multiple computers using the same peer-to-peer file sharing technology that powers BitTorrent clients. The free BitTorrent Sync application is labeled as being in the alpha stage, so it’s not necessarily ready for prime-time, but it is publicly available for download and working as advertised on my home network. BitTorrent, Inc. (yes, there is a legitimate company behind BitTorrent ) took to its blog to announce  the move from a pre-alpha, private program to the publicly available alpha. Additions since the private alpha include one-way synchronization, one-time secrets for sharing files with a friend or colleague, and the ability to exclude specific files and directories. Read 13 remaining paragraphs | Comments

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BitTorrent Sync creates private, peer-to-peer Dropbox, no cloud required

Former Hostgator employee arrested, charged with rooting 2,700 servers

Aurich Lawson A former employee of Hostgator has been arrested and charged with installing a backdoor that gave him almost unfettered control over more than 2,700 servers belonging to the widely used Web hosting provider. Eric Gunnar Gisse, 29, of San Antonio, Texas, was charged with felony breach of computer security by the district attorney’s office of Harris County in Texas, according to court documents. He worked as a medium-level administrator from September 2011 until he was terminated on February 15, 2012, according to prosecutors and a company executive. A day after his dismissal, Hostgator officials discovered a backdoor application that allowed Gisse to log in to servers from remote locations, including a computer located at the Hetzner Data Center in Nuremberg, Germany. He took pains to disguise his malware as a widely used Unix administration tool to prevent his superiors from discovering the backdoor process, prosecutors said. “The process was named ‘pcre’, a common system file, in order to disguise the true purpose of the process which would grant an attacker unauthorized access into Hostgator’s computer network,” a Houston Police Department investigator and the document’s “affiant,” Gordon M. Garrett, wrote in an affidavit. “Complainant told affiant he searched Hostgator’s computer network and found the unauthorized ‘pcre’ process installed on 2723 different Hostgator servers within the computer network.” Read 7 remaining paragraphs | Comments

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Former Hostgator employee arrested, charged with rooting 2,700 servers

How “Kessler’s Flying Circus” cookie-stuffed its way to $5.2M from eBay

Wikimedia Commons Between May 2006 and June 2007, Brian Andrew Dunning made $5.2 million— all of it from eBay. Dunning wasn’t selling Velvet Elvis posters and antique dinner plates through the auction site, however. He earned the money from affiliate commissions, getting paid whenever he directed people to eBay and they made purchases or won auctions. He was so successful at driving this traffic to eBay that his company, Kessler’s Flying Circus, became the number two eBay affiliate in the entire world. His numbers grew so high and so fast that eBay began asking awkward questions almost immediately. How exactly, eBay wanted to know, was Dunning driving all of this traffic to the site? The company was well aware of the wide variety of tricks that affiliates could use to boost their stats, including one called “cookie stuffing.” With cookie stuffing, affiliates would surreptitiously “stuff” their own eBay cookie into user computers. The next time the user visited eBay, the cookie would credit any sales commissions to the affiliate’s account. (Each cookie contained an affiliate ID number; if a computer already had an eBay cookie on it, the most recently created one was used to pay out affiliate commissions.) These commissions weren’t measured in pennies, either. At the time, eBay was offering $25 to affiliates for every single new “active user” and a whopping 50 percent commission on any user’s auction wins so long as they exceeded $100 within a week’s time. eBay worried that Kessler’s Flying Circus had cookie-stuffed its way into the second place affiliate slot. But Dunning told an eBay employee looking into the matter that he was “absolutely confident” that he was operating “in line with the intended spirit of the terms.” Dunning’s partner told eBay separately that any problems were simply “coding errors.” Read 10 remaining paragraphs | Comments

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How “Kessler’s Flying Circus” cookie-stuffed its way to $5.2M from eBay

Bitfloor, number four Bitcoin-based exchange, shuts down for good

On Wednesday evening, Bitfloor , the number four Bitcoin-based exchange (behind Mt. Gox, BTC-E, and Bitstamp) announced that it is closing its doors “indefinitely.” “Unfortunately, our US bank account is scheduled to be closed and we can no longer provide the same level of [US dollar] deposits and withdrawals as we have in the past,” wrote Roman Shtylman , the exchange’s founder. “As such, I have made the decision to halt operations and return all funds. Over the next days we will be working with all clients to ensure that everyone receives their funds. Please be patient as we process your request.” Ars reached out to Shtylman to find out more details, but he did not immediately respond. Read 2 remaining paragraphs | Comments

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Bitfloor, number four Bitcoin-based exchange, shuts down for good

New anti-speech low: buyer sued over negative eBay feedback

Ratings are important on eBay. Lots of buyers use them to assess the quality and reliability of particular sellers, and lots of sellers will go to great lengths to keep perfect or near-perfect ratings. But an Ohio company named Med Express has shown it’s willing to go further than other sellers: it’s willing to litigate. When Med Express got its first piece of negative feedback, it filed a lawsuit , insisting that the feedback be removed from eBay. Amy Nicholls paid $175 for a microscope light, as well as $12 for shipping. She was annoyed when she had to pay an extra $1.44 in postage due and left feedback complaining about that inconvenience. Med Express asked her to remove the feedback and she refused. The company complained that because it offered to refund her the $1.44, she should have taken down the feedback, which had the potential to hurt its business. (In the past six months, Med Express has 142 pieces of positive feedback and only one negative review.) Read 3 remaining paragraphs | Comments

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New anti-speech low: buyer sued over negative eBay feedback

Google Glass specs: 16GB SSD, “full-day” battery, and no 3rd-party ads

Google The Google Glass team yesterday released a list of tech specs for the upcoming augmented reality glasses. They will have Wi-Fi and Bluetooth connectivity; 16GB of flash memory, with 12GB usable (synced with Google cloud storage); a 5MP camera for photos and 720p for video; a battery providing a full day of typical usage; and an HD display that will be “the equivalent of a 25 inch high definition screen from eight feet away.” The optimal resolution for photos and video will be 640×360, according to a separate document prepared for developers. Developers using the Google Mirror API to create applications for Glass have also been told not to serve up any advertisements. “You may not serve or include any advertisements in your API Client,” the Mirror API terms of service state. “You may not use user data from your API Client for advertising purposes. You may not sell or transmit any user data received from your API Client(s) to a third-party ad network or service, data broker, or other advertising or marketing provider. For the avoidance of doubt, user data from the API Client(s) may not be used for Third-Party Ad Serving.” Read 5 remaining paragraphs | Comments

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Google Glass specs: 16GB SSD, “full-day” battery, and no 3rd-party ads