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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
Text To 911 Has Low Adoption Rate
May 19, 2015 by admin
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Only 5% of the nation’s 6,500 emergency dispatch centers are capable of receiving and responding to emergency text-to-911 messages.
That’s not good enough for more than 41,000 signers of a Change.org petition. They want Congress to pass legislation requiring emergency centers to update their systems to accommodate texting.
Text-to-911 would have provided much-needed help for Lisbeth (not her real name), a mother of two who said she was repeatedly battered by her boyfriend in her home over several years. One day three years ago, when he was yelling at her, she tried to call 911 on her cell phone for help, but he broke down the door where she was hiding and demanded to know whom she was calling.
“I was trying to whisper, but he got in and punched me and asked me who I was talking to,” Lisbeth said in an interview. That time, a neighbor overheard the fight and called 911 to bring police to the scene.
“911 works, but I wish it worked with text,” she added. “If they had it back then, it might have made a difference.” Lisbeth later moved into a shelter for abused women in California’s San Fernando Valley and said her life has improved for herself and her children. “Anybody who is going through the same situation as I was should ask for help,” she said.
The Federal Communications Commission last yea rrequired U.S. carriers and makers of some texting apps to provide emergency texting with their services, but the FCC doesn’t regulate the nation’s emergency dispatch centers. Instead, the centers are regulated locally by 3,200 different states, counties and cities, even though many of those jurisdictions receive federal funds for the dispatch centers.
FCC Commissioner Ajit Pai last August expressed concerns that FCC mandates for carriers might give the public a false impression that they can send texts to emergency responders when so few are prepared to receive texts.
FCC Mandates Text-To-911
August 19, 2014 by admin
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The U.S. Federal Communications Commission voted last week to require U.S. mobile carriers and many text-messaging apps to support functionality that allows texting emergency dispatch centers, even after questions about whether the centers will be ready by the deadline.
The commission’s vote requires U.S. mobile carriers and some texting apps to put emergency text-to-911 functionality in place by the end of the year.
Even though the nation’s four largest mobile carriers have all added text-to-911 functionality this year, less than 2 percent of the nation’s 6,800 emergency dispatch centers are ready to receive texts, said Commissioner Ajit Pai. The commission’s action will give smartphone users the impression they can send text to emergency responders, when many will not be able to, he said.
The FCC’s action “encourages the public to dive into text-to-911 functionality, when in reality, there’s hardly any water in the pool,” Pai said. “The order is sure to result in massive consumer confusion, and therefore will endanger, rather than advance, public safety.”
FCC Chairman Tom Wheeler applauded the largest mobile carriers — Verizon Wireless, AT&T, Sprint and T-Mobile USA — for adding text-to-911 functionality. The agency needs to push other carriers and emergency dispatch centers, called public-safety answering points or PSAPs, to do the same, he added.
“A lot of time of has passed since [the four largest] carriers stepped up and did something voluntarily, and the other carriers serving the consumers of America did not,” he said. “If you don’t step up to your responsibility, we will.”
Smartphone users should still call 911 if possible, but text-to-911 services need to be more widely available, Wheeler said.
The adoption of text-to-911 will let smartphone users contact police and other emergency responders when it’s not safe to talk on the phone, Wheeler said. It will also aid people with hearing or speech disabilities, he noted.
“Texting is now as important a function on a mobile device as talking,” Wheeler said. “Some of those text messages are cries for help.”
FCC Warns Against Jammers
October 12, 2011 by admin
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The U.S. Federal Communications Commission has issued warnings to 20 online retailers offeriing illegal mobile phone jammers, GPS jammers, Wi-Fi jammers and other signal jamming devices, the agency said Wednesday.
The sale and use of devices that jam the signals of authorized radio communications are illegal in the U.S., the FCC said in its enforcement action. The agency will “vigorously” prosecute violations going forward, it stated in a press release.
“Our actions should send a strong message to retailers of signal jamming devices that we will not tolerate continued violations of federal law,” Michele Ellison, chief of the FCC’s enforcement bureau, said in a statement. “Jamming devices pose significant risks to public safety and can have unintended and sometimes dangerous consequences for consumers and first responders.”
Jammers, sometimes used in classrooms, theaters and churches, are prohibited because they can prevent individuals from contacting police and fire departments or family members during an emergency, the FCC said. “Use of jamming devices can place you or other people in danger,” the agency said.