Ditching RAM may lead to low-cost supercomputers

Source: http://www.engadget.com/2015/07/12/mit-flash-only-supercomputers/

Many servers, supercomputers and other monster systems thrive on high-speed RAM to keep things running smoothly, but this memory is wildly expensive -- and that limits not just the number of nodes in these clusters, but who can use them. MIT researchers may have a much more affordable approach in the future, though. They've built a server network (not shown here) that drops RAM in favor of cheaper and slower flash storage, yet performs just about as well. The key was to get the flash drives themselves (or specifically, their controllers) to pre-process some of the data, instead of making the CPUs do all the hard work. That doesn't completely close the speed gap, but the differences are virtually negligible. In one test, 20 servers with 20TB of flash were about as fast as 40 servers with 10TB of RAM.

This doesn't mean that flash-centric computing will be useful absolutely everywhere. MIT has only demonstrated its technique helping out with database-heavy tasks like ranking web pages. This wouldn't necessarily help much with tasks that depend more on calculations, and the networked design means it this RAM-less approach wouldn't do much to help your home PC. All the same, this could help a lot if it lets your favorite cloud service run faster, or helps cost-conscious scientists devote money toward other projects.

[Image credit: AP Photo/Jens Meyer]

Filed under: Storage, Science

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Source: MIT News

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Comcast launches its own cable-free TV with Stream

Source: http://www.engadget.com/2015/07/12/comcast-xfinity-internet-stream/

The latest (and most interesting) entrant to the cord-cutting TV wars is here: Comcast. Tonight the company announced Stream, a service that delivers TV exclusively over the internet (Correction: it is "IP-based managed network" connection, check after the break for why that matters) to phones, tablets and computers -- but now TVs. The big catch? You'll need Comcast internet service to subscribe, and the Stream TV feeds only work while you're at home. It's only available in select areas to start, and will launch in Boston this summer. For $15 a month, subscribers get about a dozen channels, including all broadcast networks and HBO (but not ESPN or any other cable channels, according to the New York Times). It also has access to the usual TV Everywhere cable authenticated-streaming for when you're away from home, plus Comcast's Netflix-like Streampix service for movies.

As for the at-home restriction on TV service, that's because, as a Comcast representative tells Engadget, this is "an IP-based cable service that offers live, on demand and cloud DVR delivered over our managed network in the home." In case you're somehow not familiar with what that means, it translates to this service not using the open internet everyone else uses to reach subscriber's homes, even though it runs through the same wiring and modem over the last mile. Comcast made the same distinction when it launched video on-demand streaming to the Xbox 360 a few years back, and Reed Hastings was not happy with the explanation. Given the current climate around net neutrality, we can't imagine this launch will go over without any controversy, and expect to hear more about that bit soon.

Stream is very much cable TV without the cable box (or TV) -- assuming you have the company's internet service and live in the right area, all you'll need is a phone call to activate it. Unfortunately, it carries a surprisingly long list of restrictions, even for a brand new service. When Sling TV launched, you could get it everywhere, with PlayStation Vue, it came to your TV via consoles. While Stream has a DVR, network TV and HBO, it doesn't have quite enough to make me interested without a hook-up to real TVs or options for popular cable channels, and isn't going available where I live anyway.

Comcast already has an IPTV service it offers through universities, and made earlier efforts to push TV on phones and tablets in-home with its AnyPlay box. With cloud DVR tech in-hand, the company knows what many of us want -- TV service that works anywhere whether at home or away, with recordings, and smaller/cheaper bundles would be nice -- but will continue to play keep-away for now. If you're still interested, you can sign up for more info here.

Filed under: Home Entertainment, HD

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Source: Comcast

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Amazon's Fling is its version of AirPlay and Google Cast

Source: http://www.engadget.com/2015/07/10/amazon-fling-sdk/

If you've been hoping for an AirPlay or Cast-like tool to beam content to your Amazon streaming gadgets, you'll soon be in luck. The company revealed its Fling feature this week, a tool that will allow developers to include a way to control media from a mobile device on your Fire TV. Right now, the software will let you send video, audio and still images from an Android or iOS device to the set-top box (or dongle, we'd surmise) for viewing. Devs can also employ "two-way communication" between the Fire TV and a phone or tablet to "engaging second screen experiences."

The company released an SDK so eager app makers can get started, and Karaoke Party and Rivet Radio are among the first selections to employ the tech. Rather than building the tool into it's OS like Apple and Google, Amazon is allowing app developers to add in Fling as they wish. Amazon's mobile devices run a version Google's operating system after all, and some folks who own its streaming gear probably also own an iOS or Android device. That being said, it'll be interesting to see if the likes of Netflix, Hulu and others will decide to opt in.

Filed under: Home Entertainment, Software, HD, Mobile, Amazon

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Via: CNET

Source: Amazon

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Framing Pictures With Fingers Would Be the Best Google Glass 2.0 Feature

Source: http://gizmodo.com/framing-pictures-with-fingers-would-be-the-best-google-1716432783

The first Google Glass might’ve died an ignominious death, but don’t give up on face computers just yet. Google will most likely launch some kind of updated Glass in the future, and when it does, features like framing up pictures with your fingers could make it a whole lot better than version 1.0.

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Google's DeepStereo makes Street View 'tourism' more realistic

Source: http://www.engadget.com/2015/07/08/googles-deepstereo/

Who here uses Street View to do some virtual traveling? It's not a shabby option if you want to look at places you might never visit within your lifetime, but Google thinks there's still a better way to simulate real-world tours. A team of the company's researchers has developed a technique that uses Google's experimental machine vision algorithm called DeepStereo to transform Street View panoramas into seamless virtual tours. See, Street View photos don't usually capture every detail of a location -- there are always a few frames missing in order to construct convincing digital reproductions of places like museums and houses. DeepStereo can synthesize those missing frames based on the ones that go before and after them, giving Google the ability to create realistic virtual tours.

In order to "train" DeepStero, the team had to feed the algorithm with images captured out of a moving vehicle; after that, it was able to start recreating images. It's still not perfect at this point -- some objects like trees or grass are hard to synthesize and details vanish from the recreated frame if the machine lacks pertinent details. In addition, it takes as long as 12 minutes on a powerful workstation to build a single synthetic frame. DeepStereo's obviously still a young technology, but the team believes it could be used not just to create virtual tours, but to generate environments for movies and virtual reality content in the future.

Filed under: Misc, Google

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Via: MIT Technology Review

Source: Google

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