Wednesday, November 9, 2011

ARM unveils new GPU chip design

British computer chip designer ARM has unveiled its latest graphics processing unit (GPU) for mobile devices.

The Mali-T658 offers up to ten times the performance of its predecessor.

It paves the way for faster games and other more complex software on smartphones and tablet computers.

ARM hopes to expand its share of a rapidly-growing market. Demand for its mobile GPU designs lags behind that for its central processing units (CPUs).

The most high-profile use of its GPU to date is in Samsung's award winning Galaxy 2 handsets. They use chips based on the T658's older brother, the Mali-400 MP.

A recent review by the influential website AnandTech rated the 400 MP the fastest GPU available in a smartphone today.

ARM says manufacturers are likely to have its new design in use in around two years.

"It all comes down to user experience," said Jem Davies at ARM's Media Processing Division.

"Faster graphics performance with snappier, more responsive user interfaces, more immersive game play and a whole range of new applications which are being enabled by the capabilities of GPU computing."

Calculations

GPU cores offer specialised processing capabilities that bolster the power of the main CPU.

A GPU's key function is to take all the polygon co-ordinates described by a piece of graphics software and work out how to draw, colour and shade them. It then uses this information to determine what colour each pixel of the screen should be as the image changes dozens of times every second.

The more powerful the GPU, the more detail is possible. Top of the range games can require millions of polygons on screen at the same time to create 3D-like environments.

To maximise performance, manufacturers can link several GPUs together.

ARM's previous design allowed up to four cores to be connected.

The Mali-T658 doubles the maximum to eight, with each core offering double the arithmetic capability of its forerunner.

"It's all about power," said Mr Davies.

"The idea is that when the full performance is required, you power up all of those cores. But having a multi-core architecture means that when the performance needs are lower, we can power some of those cores down."

This allows ARM to play to one of its strengths - its reputation for lower energy consumption.

Console quality graphics

The firm claims the new technology will offer battery-powered mobile handsets roughly the same graphics performance as Sony's Playstation 3 console.

However, its rival Imagination Technologies has made similar assertions about its upcoming PowerVR designs. Like ARM, the firm is headquartered in the UK. Its current architecture is used by Apple in its iPhone and iPad products.

"Start Quote

More immersive game play and a whole range of new applications... are being enabled by the capabilities of GPU computing"

End Quote Jem Davies ARM Holdings

California-based NVIDIA and Qualcomm also talk up their GeForce and Adreno technologies.

But whatever the firms' claims, customer expectations are hard to beat.

"You have cinema, you have high definition, you have hugely complex CGI movies on HD screens in your lounge," said Ian Smythe, director of marketing at ARM's Media Processing division.

"You expect this high quality experience from every screen that you look at. And so the user experience has to be of that sort of quality.

"Reproducing a CGI movie - which is generated on a server farm where it takes a day to render a frame with 50,000 processors - being able to reproduce that in a mobile experience is clearly a challenge."

Speech recognition

GPUs are particularly good at what are termed "parallisable" tasks - processes that can be broken down into several parts and run simultaneously because the outcome of any one calculation does not determine the input of another.

This is particularly suited for applications offering augmented reality, allowing users to overlay graphical information over live images of whatever their devices' cameras are facing.

Other potential uses include image processing, pattern matching and speech recognition.

Competition among the GPU designers is helping drive computing power to new heights, making possible processes unthinkable on previous generations of handsets.

However, developers need to code their software to take advantage of the graphics processors if they are to make the most of the accelerated performance on offer.

That is a challenge when different devices use different designs.

"At the moment many of the speech recognition applications that are out there are solely relying on the CPU," said Mr Davies.

"Very few are taking advantage of the acceleration of the GPU - and that's clearly an area of growth for us."



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.wales domain name wins support

A survey of Welsh businesses and consumers suggests a majority of both support the nation getting its own domain name.

The move would offer website owners the chance to end their address with .wales and .cymru, instead of .uk.

Internet regulator ICANN will allow countries and other organisations to apply for the new names from January.

Supporters say it could help with branding, but critics warn it may increase the opportunity for fraud.

The poll was commissioned by the not-for-profit domain registry service Nominet. It suggests 69% of consumers backed the move and 59% of Welsh businesses and other bodies.

The poll used a sample of 1,003 individuals - 21% of whom were Welsh speakers - and 250 senior decision makers in Welsh organisations

However the survey suggested splits over which name to take.

"On the consumer side there was a slightly higher preference for .cymru," Nominet's director of business development, Glenn Hayward, told the BBC.

"Among businesses there was a much stronger preference for .wales to help them market themselves outside of the country."

Costs

Nominet suggests one solution would be for the both name to be registered. Website addresses ending in either suffix could then direct users to the same place.

However, ICANN is charging $185,000 (�116,045) per application and is refusing to let Wales be a special case.

The Welsh business minister, Edwina Hart, said last week that she is not considering paying for either application.

Nominet is in discussions to cover the costs and says it would set up a local office if its efforts succeed.

However, a rival bidder, dotCYM, says giving Nominet control would amount to selling off the country's identity.

Benefits

The London Economics Wales consultancy carried out the poll as part of a wider study.

"A Welsh domain name can play a positive supporting role in activities aimed at raising the brand profile of Wales and encouraging exports and inward investment," the report says.

"It can also provide a constant stream of low level but free advertising."

However the study also warns that such publicity comes at a price.

It says businesses and other brand owners will need to take defensive measures to prevent third parties operating sites with their name. They will also face additional marketing costs to publicise their new addresses.



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Adobe job cuts cloud Flash future

Software developer Adobe Systems is cutting 750 jobs, while reports say it is halting development of its Flash Player plug-in for mobile devices.

The firm said the job cuts were being made in Europe and North America and represented more than 7% of the company's workforce.

The firm said it was axing the posts to help it put more focus on digital media and digital marketing.

It had no comment about the Flash Player report.

Flash is used to run movies, games and other applications. The plug-in works on Android devices and Blackberry's Playbook tablet, but Apple has barred it from iPhones and iPads.

Apple's late former chief executive, Steve Jobs, attacked the code for being unreliable, a security threat and a drain on battery life.

Adobe responded by saying the plug-in would "continue to be the dominant tool" for media on the internet.

However, reviewers also criticised its performance on other devices and Microsoft recently announced it would not support the product on the tablet interface of its upcoming Windows 8 browser.

Leak reported

Tech website ZDNet said it had seen an email briefing sent by Adobe to its partners.

"We will no longer adapt Flash Player for mobile devices to new browser, OS version of device configurations," it read.

"Some of our source code licensees may opt to continue working on and releasing their own implementations. We will continue to support the current Android and Playbook configurations with critical bug fixes and security updates."

The report said the firm would now focus on the alternative HTML5 technology and its own AIR product.

A spokeswoman for Adobe was unable to confirm the report.

Adobe is expected to give more details later in the day at its annual analysts' conference.



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More ISPs asked to block Newzbin2

Virgin Media, Sky and TalkTalk have been asked to block access to Newzbin2, a members-only group which provides links to pirated films and music.

BT has already barred its customers from accessing the site, following a court case brought by the Motion Picture Association.

The MPA is now extending its net in a UK-wide crackdown on piracy.

TalkTalk said it was "considering its response". Sky and Virgin Media signalled they would obey court orders.

Legal battle

"There are some elements of the order, for instance that we have to pay the costs of implementing it, that we think are inappropriate," Andrew Heaney, head of regulatory affairs at TalkTalk, told the BBC.

BT has estimated that the block against Newzbin cost it around �5,000 to set up.

"In a sense it wouldn't be worth having a legal battle over that but it the costs get a lot more we may reserve the right to contest it in the future," Mr Heaney said.

The MPA confirmed that it had written to the major ISPs.

"We are involved in constructive discussions but we are not going to comment in detail at this stage," said an MPA spokesman.

Virgin Media acknowledged that it had also received a letter as a preliminary step towards a formal court order.

"The recent Newzbin2 ruling clarifies the legal process for content owners to challenge alleged copyright infringement," said a Virgin Media spokesman.

"As a responsible ISP, we will comply with any court order addressed to us but strongly believe such deterrents need to be accompanied by compelling legal alternatives."

Sky also indicated that it was likely to comply with any court order.

"When presented with undisputed and legally robust evidence of copyright breaches, we will take appropriate action in respect to site blocking," said a spokesman.

Workaround

The MPA has hailed the Newzbin block as a victory in its ongoing fight against piracy which it estimates costs the industry billions of pounds each year.

It has vowed to implement similar blocks against other sites offering links to pirated movies.

Newzbin said on the day that BT's block began that it was "unaffected" because it had issued a software workaround. It claimed the code was being used by over 90% of its members.

In response, the MPA said that despite ways to get around the block, it was hopeful that the move would deter the "vast majority of customers".

Web blocking appears to be the new weapon of choice for the creative industries. On 4 November BT received a letter from the BPI, the UK's music industry trade body, asking it to block access to BitTorrent file-sharing website The Pirate Bay.



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