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Will Facebook Go Open-Source
December 29, 2015 by admin
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Facebook has unveiled its next-generation GPU-based systems for training neural networks, Open Rack-compatible hardware code-named “Big Sur” which it plans to open source.
The social media giant’s latest machine learning system has been designed for artificial intelligence (AI) computing at a large scale, and in most part has been crafted with Nvidia hardware.
Big Sur comprises eight high-performance GPUs of up to 300 watts each, with the flexibility to configure between multiple PCI-e topologies. It makes use of Nvidia’s Tesla Accelerated Computing Platform, and as a result is twice as fast as Facebook’s previous generation rack.
“This means we can train twice as fast and explore networks twice as large,” said the firm in its engineering blog. “And distributing training across eight GPUs allows us to scale the size and speed of our networks by another factor of two.”
Facebook claims that as well as better performance, Big Sur is also far more versatile and efficient than the off-the-shelf solutions in its previous generation.
“While many high-performance computing systems require special cooling and other unique infrastructure to operate, we have optimised these new servers for thermal and power efficiency, allowing us to operate them even in our own free-air cooled, Open Compute standard data centres,” explained the company.
We spoke to Nvidia’s senior product manager for GPU Computing, Will Ramey, ahead of the launch, who has been working on the Big Sur project alongside Facebook for some time.
“The project is the first time that a complete computing system that is designed for machine learning and AI will be released as an open source solution,” said Ramey. “By taking the purpose-built design spec that Facebook has designed for their own machine learning apps and open sourcing them, people will benefit from and contribute to the project so it can move the entire industry forward.”
While Big Sur was built with Nvidia’s new Tesla M40 hyperscale accelerator in mind, it can actually support a wide range of PCI-e cards in what Facebook believes could make for better efficiencies in production and manufacturing to get more computational power for every penny that it invests.
“Servers can also require maintenance and hefty operational resources, so, like the other hardware in our data centres, Big Sur was designed around operational efficiency and serviceability,” Facebook said. “We’ve removed the components that don’t get used very much, and components that fail relatively frequently – such as hard drives and DIMMs – can now be removed and replaced in a few seconds.”
Perhaps the most interesting aspect of the Big Sur announcement is Facebook’s plans to open-source it and submit the design materials to the Open Compute Project. This is a bid to make it easier for AI researchers to share techniques and technologies.
“As with all hardware systems that are released into the open, it’s our hope that others will be able to work with us to improve it,” Facebook said, adding that it believes open collaboration will help foster innovation for future designs, and put us closer to building complex AI systems that will probably take over the world and kill us all.
Nvidia released its end-to-end hyperscale data centre platform last month claiming that it will let web services companies accelerate their machine learning workloads and power advanced artificial intelligence applications.
Consisting of two accelerators, Nvidia’s latest hyperscale line aims to let researchers design new deep neural networks more quickly for the increasing number of applications they want to power with AI. It also is designed to deploy these networks across the data centre. The line also includes a suite of GPU-accelerated libraries.
Courtesy-TheInq
Sharp Shows MEMs
October 9, 2013 by admin
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Sharp on Monday unveiled its latest prototypes of a new kind of display screen that it says brings several advantages over today’s liquid crystal display (LCD) screens.
The screens, called microelectromechanical systems (MEMS) displays for the tiny moving parts they contain, are being developed by the Japanese company in partnership with Qualcomm and were on show at the Ceatec electronics show just outside of Tokyo.
Behind each pixel in a MEMS display is a backlight that flashes red, green and blue in fast succession, and in front of it is a tiny shutter can be opened to let light through.
Synchronized to the backlight, the shutter can control the amount of each color of light allowed through. The eye perceives these flashes as the desired hue.
In contrast, today’s LCD screens create colored pixels using three filters. The filters swallow about two thirds of the brightness of the backlight before it leaves the display, said Akira Imai, deputy general manager of Sharp’s new business development center.
The MEMS display can allow all the light through, so the intensity of the backlight can be reduced using less power for the display, said Imai.
In a portable gadget, the screen often consumes more power than any other component, so reducing its demands can have a big impact on battery life.
The screens on show at Ceatec were 7-inch models with 800 pixel by 1,280 pixel resolution. The colors were bright and the screen image was sharp, although people viewing the screens did tend to see a brief flash of red, green and blue pixel each time they turned their eyes away from the display. That’s something Sharp is working on, said Imai.
Sharp also showed a version of the screen working in several low power modes.
The development work with Qualcomm began earlier this year when the U.S. company said it would invest $120 million into Sharp. The money, which was invested in two parts, was accompanied by Qualcomm’s MEMS expertise. Sharp has a long history in flat-panel display technology, especially LCD, and has recently been working on a new type of display called IGZO, on which the MEMS display is partly based.
Google Acquires Instagram’s Rival
September 24, 2012 by admin
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Google Inc said it purchased Instagram rival Nik Software, which makes award-winning photo editing application Snapseed, for an undisclosed amount.
Google and Facebook Inc are locked in a battle for social network followers that has increasingly shifted to mobile applications, such as photo editing.
While not as famous as Instagram, available for free on Apple’s mobile devices, Snapseed has won a following for its editing prowess among photographers, despite a $4.99 price tag.
Nik Software says Snapseed has more than 9 million users while Instagram says it has more than 100 million.
“We want to help our users create photos they absolutely love, and in our experience Nik does this better than anyone,” Vic Gundotra, Google’s senior vice president, engineering, said on a Google+ post.
Facebook this year bought Instagram, which made an app for users to add filters and effects to pictures taken on their smartphones, for a cool $1 billion.
“Google’s playing chase up in social,” BGC Partners analyst Colin Gillis said. “It’s yet another tuck in they have done, trying to boost their Google+ offering.”
Snapseed won Apple Inc’s “iPad App Of The Year” award in 2011 for its multitouch photo editing interface.
“We’ve always aspired to share our passion for photography with everyone, and with Google’s support we hope to be able to help many millions more people create awesome pictures,” Nik Software said on its Website.
Google’s Gundotra also said that Google+ had hit over 400 million users this week and had just crossed 100 million
IBM Beefs Up
IBM is unveiling a new version of its Connections enterprise social networking (ESN) software, which businesses use to give their employees social media capabilities adapted for workplace collaboration, such as employee profiles and blogging.
Enhancements in IBM Connections 4.0 include a more interactive activity stream, broader support for mobile devices, more granular usage analytics and integration with email and calendar systems, according to Heidi Ambler, director of product management for IBM Social Software. It is available immediately.
“This new release helps customers grasp the power of social analytics, gives them anytime-anywhere access to the software and provides cutting-edge capabilities,” she said.
Instead of a list-like news feed, the new software has an activity stream in employee profiles that users can filter for relevance, as well as act on the notifications right from the Connections interface.
For example, users can trigger pop-up boxes from the activity stream notifications and see the latest comments made about a file, see who posted the latest version of it and add tags to it.
An integration with IBM’s own Lotus Notes-Domino and with Microsoft’s Outlook-Exchange email and calendar systems lets users manage email messages through Connections.
VoIP Ideal Platform For Controlling Botnets
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Botnets and their masters can communicate with one other by calling into the same VoIP conference call and exchanging data using touch tones, researchers demonstrated at Defcon.
This gives the botmasters — whose top goals include remaining anonymous — the ability to issue orders from random payphones and disposable cellular phones, say researchers Itzik Kotler and Iftach Ian Amit of security and risk-assessment firm Security Art.
Using phones and the public phone networks eliminates one of the prime tools bot fighters have: taking down the domains of botnets’ command and control servers, the researchers say. If the botmaster isn’t using a command and control server, it can’t be taken down.
In fact, the botmaster can communicate with the zombie machines that make up the botnet without using the Internet at all if the zombies are within a corporate network. So even if a victim company’s VoIP network is segregated from the data network, there is still a connection to the outside world.
In addition to its stealth, the VoIP tactic employs technology that readily pierces corporate firewalls and uses only traffic that is difficult for data loss prevention software to peer into. The traffic is streamed audio, so data loss prevention scanners can’t recognize patterns of data they are supposed to filter, the researchers say.
The downsides of VoIP as a command channel are that it severely limits the number of zombie machines that can be contacted at once, and the rate at which stolen data can be sent out of a corporate network is limited by the phone system. But Kotler and Amit say the connections are plenty big to send commands in.
During their demo at the conference, the pair had an Asterisk open source IP PBX stand in as the corporate PBX. A virtual machine representing a zombie computer on a corporate network called via TCP/IP through the PBX and into a corporate conference call. A BlackBerry, representing the botmaster dialed in over the public phone network to the same conference call.