Ultra-mobile future beckons for PCs

The desktop PC's days of dominance could be numbered as laptops and ultra-mobile PCs begin to reap the benefit of ever greater, and more efficient, computing power.

"We want to be mobile and not tethered to our desks anymore - we can take our computing power with us," said Mooly Eden, general manager of the mobile platform group at Intel.

"Today's laptops have more processing power than all the computers that took the Apollo rocket to the moon," he added.

Laptop sales are expected to overtake desktop sales around the world by 2009 as the shift to an untethered computer experience accelerates.

"Consumers want the performance of a desktop - they are not willing to compromise," said Mr Eden. "They want battery life, they want wi-fi connectivity and good form factor."

Intel is pushing hard into the mobile space. At CES this week the company announced five processors for laptops, using its latest chip designs made up of transistors with features just 45 billionths of a metre in size.

Today's ultra mobile PCs have the same power as 2005's laptops

It also announced a new dedicated chip set, called Menlow, which will power a new generation of ultra mobile computers.

"Much of our future, in terms of volume, is going to be in this area," Paul Otellini, chief executive of Intel told BBC News.

Sales of so-called Ultra Mobile PCs (UMPC), which were first launched in 2006, have been modest, but Mr Otellini said the market was still evolving.

"Ultra mobility is the ability to access all of your information, get in touch with anyone you want to, collaborate with anyone, and run any application you want from anywhere on the planet," said Dennis Moore, chief executive of OQO, which builds UMPCs.

He added: "It's about getting the same kind of connectivity and performance as sitting at your desktop PC."

Companies such as Samsung, iRiver, Lenovo, LG and Toshiba have committed to building these mobile devices.

At CES Mr Otellini showed off a Toshiba portable computer about the size of a paperback book running Windows Vista.

"The Menlow-powered device from Toshiba has the same performance as the most powerful Centrino laptop two years ago," he told BBC News.

Intel gave the Centrino label to a combination of chipset and wi-fi technologies optimised for mobile computers.

Key issue

"We will have dual and quad-core processors in these devices in just a couple of years," he added.

The relationship between computing power and battery life was the key issue in making portable computers practical, said Mr Eden.

"More performance means more transistors and more transistors means more power and more power is less battery life; that is a problem for laptops," said Mr Eden.

Power efficiency

The crucial development for ultra mobile devices is the power efficiency afforded by the latest chip designs.

Intel's Menlow chip set is five times smaller and consumes 10 times less power than ultra low voltage mobile processors introduced in 2006.

Soon you will be able to have connected experience everywhere you go

Mr Moore said: "Power is not an issue on a desktop, because a giant fan can suck the heat out of the machine; it is in a UMPC.

"You can measure the progress because a typical UMPC is smaller than the fan in a typical desktop computer."

He added: "Today's chips do not overheat, do not drain the battery in an hour."

Lightweight machine

The goal, said Mr Eden, was to build laptops - and UMPCs - which could run off a battery for an entire day.

Companies such as Qualcomm are also building processors to drive a new generation of lightweight computers. It unveiled two designs, called Anchorage and Fairbanks, at CES.

Other firms committed to a new generation of mobile computers include Taiwanese firm Asus, which has enjoyed success with its Eee PC - a lightweight machine, which can run Windows XP, and uses solid state drives instead of hard drives to keep the weight down and improve reliability.

Mr Eden said: "Moving to solid state drives is inevitable. This is a revolution that must happen. They have many advantages compared to rotational drives - they consume less power, they are more reliable because you don't have moving parts.

"This is the optimal solution for notebooks. The only problem today is the pricing. And for that reason economies of scale will play its game."

Solid state drives are more expensive to manufacture than hard drives as they are built from silicon - and lack the higher storage functionality of a hard drive.

However, Bit Micro are expected to announce a 2.5in 832 Gigabyte solid state drive at CES, closing the gap on hard disks.

For maximum mobility, Toshiba and Samsung both unveiled 1.8in solid state drives that can hold 128 GB of data.

Wireless broadband

Drives like this will start to make their way into devices in the coming months, along with other technologies such as Wimax.

The next generation wireless broadband will be introduced into a device from OQO later this year.

Its current flagship UMPC, the e2, can run Windows Vista operating system and can also connect to the net over wi-fi and 3.5G mobile networks.

At CES on Monday Asus also announced it would release a Wimax-enabled version of its Eee PC.

Mr Otellini said Intel too was looking to roll out Wimax in its chips designed for laptops in 2008.

"Soon you will be able to have a connected experience everywhere you go," said Mr Moore.

"You won't need to worry about finding a wireless hotspot and with improvements in battery life and power efficiency you won't need to worry about recharging," he added.

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Source from: news.bbc.co.uk

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Graphics chips rev up research results

A better graphics card means PC games look more realistic

Every serious PC gamer knows what a difference a good graphics card can make to the fun they have.

But it is not just hardcore gamers who have recognised the worth of a PC graphics card.

Increasing numbers of research scientists have woken up to their potential too.

But the scientists in question are not using the cards to appreciate the detail in PC games such as The Witcher. Instead they are using them as cheap sources of supercomputer-class processing power.

"They give a phenomenal bang for the buck," said Mike Giles, professor of scientific computing at the University of Oxford.

Prof Giles said the way that graphics cards were built made them very good at the repetitive computational tasks many scientists use to test theories, models and predictions.

Spot checks

Professor Susan Hagness from the Department of Electrical and Computer Engineering at the University of Wisconsin-Madison has turned to graphics cards to quickly analyse breast scans to spot cancer in its early stages.

Dr Hagness said official figures suggest x-rays missed 20% of the cancers that were present when a woman underwent screening.

Women want scan results as quickly as possible

Dr Hagness' team is using microwaves to scan tissue and then pumping the results through hardware made by Canadian firm Acceleware which bolts together several graphics cards into a mini computational cluster.

The dedicated hardware meant that results emerged in a matter of hours rather than days, said Dr Hagness.

This was essential when the technique began to be used in a clinical setting, she said.

"Any woman who undergoes screening mammography wants the results straight away."

Hardware helper

Prof Giles, who is using graphics processors to do financial modelling, said the chips were very good at doing the same thing many different times.

By contrast the Intel or AMD chips inside a typical desktop machine were good at doing many different things at the same time.

Graphics cards had far more processing cores - which execute program instructions - than Intel or AMD chips, said Prof Giles, adding that each one of the cores could do one run of the same simple task.

The financial models that Prof Giles is running test the same algorithm on each core but each one gets different random numbers as input.

With the latest graphics processors having more than 100 processing cores that can add up to a lot of number crunching.

Modelling financial markets helps firms weather stock movements

"Each core is logically very simple but its floating point capability is the same as an Intel chip," said Prof Giles.

Developments in methods of writing code to handle the processing was also making graphics processors much more attractive, he said.

"In the early days you could only use graphics cards for graphics," said Prof Giles.

In particular, he said, graphics card maker Nvidia had released software tools called Cuda (Compute Unified Device Architecture) that made it much easier to write code.

"For a while there were only hard-to-use shader languages," said Prof Giles, "Cuda is a much more usable development environment."

Flow control

By harnessing that processing power many scientists are getting results from simulations far faster than before.

PhD student Tobias Brandvik and Dr Graham Pullan in the Whittle Laboratory at the University of Cambridge engineering department had sped up simulations of turbine blade designs by 40 times by using a few graphics cards.

Each blade, said Dr Pullan, was custom designed for the jet or power plant in which they will be used.

Tiny improvements in efficiency have big rewards in turbine engines

But, he said, even with this formidable level of complexity the design process models the turbulent air rather than accurately representing or resolving it.

"With a cluster of graphical processing units, we could hope to use, say, 10 million cells," he said. The simulation run would take the same amount of time as existing models.

"Then, we would resolve some of the larger turbulent eddies," said Dr Pullan. "In general, the more we resolve and the less we model, the more accurate the theory."

An alternative would be to stick with 500,000 cells and try lots more blade designs or include blades upstream and downstream to get a better overall picture of air flowing through a turbine.

Tiny improvements in design can have a huge payoff, said Dr Pullan.

"It's all about making the absolute best efficiency possible," he said.

"Improvements of even 1% in fuel consumption, for jet engines, or 1% in electricity power generated, for steam or gas turbines for power generation, is highly sought after."Damming concern Science icon Bitter memories

Source from: news.bbc.co.uk

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Graphics chips rev up research results

A better graphics card means PC games look more realistic

Every serious PC gamer knows what a difference a good graphics card can make to the fun they have.

But it is not just hardcore gamers who have recognised the worth of a PC graphics card.

Increasing numbers of research scientists have woken up to their potential too.

But the scientists in question are not using the cards to appreciate the detail in PC games such as The Witcher. Instead they are using them as cheap sources of supercomputer-class processing power.

"They give a phenomenal bang for the buck," said Mike Giles, professor of scientific computing at the University of Oxford.

Prof Giles said the way that graphics cards were built made them very good at the repetitive computational tasks many scientists use to test theories, models and predictions.

Spot checks

Professor Susan Hagness from the Department of Electrical and Computer Engineering at the University of Wisconsin-Madison has turned to graphics cards to quickly analyse breast scans to spot cancer in its early stages.

Dr Hagness said official figures suggest x-rays missed 20% of the cancers that were present when a woman underwent screening.

Women want scan results as quickly as possible

Dr Hagness' team is using microwaves to scan tissue and then pumping the results through hardware made by Canadian firm Acceleware which bolts together several graphics cards into a mini computational cluster.

The dedicated hardware meant that results emerged in a matter of hours rather than days, said Dr Hagness.

This was essential when the technique began to be used in a clinical setting, she said.

"Any woman who undergoes screening mammography wants the results straight away."

Hardware helper

Prof Giles, who is using graphics processors to do financial modelling, said the chips were very good at doing the same thing many different times.

By contrast the Intel or AMD chips inside a typical desktop machine were good at doing many different things at the same time.

Graphics cards had far more processing cores - which execute program instructions - than Intel or AMD chips, said Prof Giles, adding that each one of the cores could do one run of the same simple task.

The financial models that Prof Giles is running test the same algorithm on each core but each one gets different random numbers as input.

With the latest graphics processors having more than 100 processing cores that can add up to a lot of number crunching.

Modelling financial markets helps firms weather stock movements

"Each core is logically very simple but its floating point capability is the same as an Intel chip," said Prof Giles.

Developments in methods of writing code to handle the processing was also making graphics processors much more attractive, he said.

"In the early days you could only use graphics cards for graphics," said Prof Giles.

In particular, he said, graphics card maker Nvidia had released software tools called Cuda (Compute Unified Device Architecture) that made it much easier to write code.

"For a while there were only hard-to-use shader languages," said Prof Giles, "Cuda is a much more usable development environment."

Flow control

By harnessing that processing power many scientists are getting results from simulations far faster than before.

PhD student Tobias Brandvik and Dr Graham Pullan in the Whittle Laboratory at the University of Cambridge engineering department had sped up simulations of turbine blade designs by 40 times by using a few graphics cards.

Each blade, said Dr Pullan, was custom designed for the jet or power plant in which they will be used.

Tiny improvements in efficiency have big rewards in turbine engines

But, he said, even with this formidable level of complexity the design process models the turbulent air rather than accurately representing or resolving it.

"With a cluster of graphical processing units, we could hope to use, say, 10 million cells," he said. The simulation run would take the same amount of time as existing models.

"Then, we would resolve some of the larger turbulent eddies," said Dr Pullan. "In general, the more we resolve and the less we model, the more accurate the theory."

An alternative would be to stick with 500,000 cells and try lots more blade designs or include blades upstream and downstream to get a better overall picture of air flowing through a turbine.

Tiny improvements in design can have a huge payoff, said Dr Pullan.

"It's all about making the absolute best efficiency possible," he said.

"Improvements of even 1% in fuel consumption, for jet engines, or 1% in electricity power generated, for steam or gas turbines for power generation, is highly sought after."Luxury living Day in pictures It's quiz time!

Source from: news.bbc.co.uk

Read More..

Graphics chips rev up research results

A better graphics card means PC games look more realistic

Every serious PC gamer knows what a difference a good graphics card can make to the fun they have.

But it is not just hardcore gamers who have recognised the worth of a PC graphics card.

Increasing numbers of research scientists have woken up to their potential too.

But the scientists in question are not using the cards to appreciate the detail in PC games such as The Witcher. Instead they are using them as cheap sources of supercomputer-class processing power.

"They give a phenomenal bang for the buck," said Mike Giles, professor of scientific computing at the University of Oxford.

Prof Giles said the way that graphics cards were built made them very good at the repetitive computational tasks many scientists use to test theories, models and predictions.

Spot checks

Professor Susan Hagness from the Department of Electrical and Computer Engineering at the University of Wisconsin-Madison has turned to graphics cards to quickly analyse breast scans to spot cancer in its early stages.

Dr Hagness said official figures suggest x-rays missed 20% of the cancers that were present when a woman underwent screening.

Women want scan results as quickly as possible

Dr Hagness' team is using microwaves to scan tissue and then pumping the results through hardware made by Canadian firm Acceleware which bolts together several graphics cards into a mini computational cluster.

The dedicated hardware meant that results emerged in a matter of hours rather than days, said Dr Hagness.

This was essential when the technique began to be used in a clinical setting, she said.

"Any woman who undergoes screening mammography wants the results straight away."

Hardware helper

Prof Giles, who is using graphics processors to do financial modelling, said the chips were very good at doing the same thing many different times.

By contrast the Intel or AMD chips inside a typical desktop machine were good at doing many different things at the same time.

Graphics cards had far more processing cores - which execute program instructions - than Intel or AMD chips, said Prof Giles, adding that each one of the cores could do one run of the same simple task.

The financial models that Prof Giles is running test the same algorithm on each core but each one gets different random numbers as input.

With the latest graphics processors having more than 100 processing cores that can add up to a lot of number crunching.

Modelling financial markets helps firms weather stock movements

"Each core is logically very simple but its floating point capability is the same as an Intel chip," said Prof Giles.

Developments in methods of writing code to handle the processing was also making graphics processors much more attractive, he said.

"In the early days you could only use graphics cards for graphics," said Prof Giles.

In particular, he said, graphics card maker Nvidia had released software tools called Cuda (Compute Unified Device Architecture) that made it much easier to write code.

"For a while there were only hard-to-use shader languages," said Prof Giles, "Cuda is a much more usable development environment."

Flow control

By harnessing that processing power many scientists are getting results from simulations far faster than before.

PhD student Tobias Brandvik and Dr Graham Pullan in the Whittle Laboratory at the University of Cambridge engineering department had sped up simulations of turbine blade designs by 40 times by using a few graphics cards.

Each blade, said Dr Pullan, was custom designed for the jet or power plant in which they will be used.

Tiny improvements in efficiency have big rewards in turbine engines

But, he said, even with this formidable level of complexity the design process models the turbulent air rather than accurately representing or resolving it.

"With a cluster of graphical processing units, we could hope to use, say, 10 million cells," he said. The simulation run would take the same amount of time as existing models.

"Then, we would resolve some of the larger turbulent eddies," said Dr Pullan. "In general, the more we resolve and the less we model, the more accurate the theory."

An alternative would be to stick with 500,000 cells and try lots more blade designs or include blades upstream and downstream to get a better overall picture of air flowing through a turbine.

Tiny improvements in design can have a huge payoff, said Dr Pullan.

"It's all about making the absolute best efficiency possible," he said.

"Improvements of even 1% in fuel consumption, for jet engines, or 1% in electricity power generated, for steam or gas turbines for power generation, is highly sought after."Day in pictures Russian viewpoints Entente cordiale?

Source from: news.bbc.co.uk

Read More..

Graphics chips rev up research results

A better graphics card means PC games look more realistic

Every serious PC gamer knows what a difference a good graphics card can make to the fun they have.

But it is not just hardcore gamers who have recognised the worth of a PC graphics card.

Increasing numbers of research scientists have woken up to their potential too.

But the scientists in question are not using the cards to appreciate the detail in PC games such as The Witcher. Instead they are using them as cheap sources of supercomputer-class processing power.

"They give a phenomenal bang for the buck," said Mike Giles, professor of scientific computing at the University of Oxford.

Prof Giles said the way that graphics cards were built made them very good at the repetitive computational tasks many scientists use to test theories, models and predictions.

Spot checks

Professor Susan Hagness from the Department of Electrical and Computer Engineering at the University of Wisconsin-Madison has turned to graphics cards to quickly analyse breast scans to spot cancer in its early stages.

Dr Hagness said official figures suggest x-rays missed 20% of the cancers that were present when a woman underwent screening.

Women want scan results as quickly as possible

Dr Hagness' team is using microwaves to scan tissue and then pumping the results through hardware made by Canadian firm Acceleware which bolts together several graphics cards into a mini computational cluster.

The dedicated hardware meant that results emerged in a matter of hours rather than days, said Dr Hagness.

This was essential when the technique began to be used in a clinical setting, she said.

"Any woman who undergoes screening mammography wants the results straight away."

Hardware helper

Prof Giles, who is using graphics processors to do financial modelling, said the chips were very good at doing the same thing many different times.

By contrast the Intel or AMD chips inside a typical desktop machine were good at doing many different things at the same time.

Graphics cards had far more processing cores - which execute program instructions - than Intel or AMD chips, said Prof Giles, adding that each one of the cores could do one run of the same simple task.

The financial models that Prof Giles is running test the same algorithm on each core but each one gets different random numbers as input.

With the latest graphics processors having more than 100 processing cores that can add up to a lot of number crunching.

Modelling financial markets helps firms weather stock movements

"Each core is logically very simple but its floating point capability is the same as an Intel chip," said Prof Giles.

Developments in methods of writing code to handle the processing was also making graphics processors much more attractive, he said.

"In the early days you could only use graphics cards for graphics," said Prof Giles.

In particular, he said, graphics card maker Nvidia had released software tools called Cuda (Compute Unified Device Architecture) that made it much easier to write code.

"For a while there were only hard-to-use shader languages," said Prof Giles, "Cuda is a much more usable development environment."

Flow control

By harnessing that processing power many scientists are getting results from simulations far faster than before.

PhD student Tobias Brandvik and Dr Graham Pullan in the Whittle Laboratory at the University of Cambridge engineering department had sped up simulations of turbine blade designs by 40 times by using a few graphics cards.

Each blade, said Dr Pullan, was custom designed for the jet or power plant in which they will be used.

Tiny improvements in efficiency have big rewards in turbine engines

But, he said, even with this formidable level of complexity the design process models the turbulent air rather than accurately representing or resolving it.

"With a cluster of graphical processing units, we could hope to use, say, 10 million cells," he said. The simulation run would take the same amount of time as existing models.

"Then, we would resolve some of the larger turbulent eddies," said Dr Pullan. "In general, the more we resolve and the less we model, the more accurate the theory."

An alternative would be to stick with 500,000 cells and try lots more blade designs or include blades upstream and downstream to get a better overall picture of air flowing through a turbine.

Tiny improvements in design can have a huge payoff, said Dr Pullan.

"It's all about making the absolute best efficiency possible," he said.

"Improvements of even 1% in fuel consumption, for jet engines, or 1% in electricity power generated, for steam or gas turbines for power generation, is highly sought after."Street veteran Delhi's dilemma Crisis defused

Source from: news.bbc.co.uk

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