Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. ×

Comment Re:Oh yawn... (Score 3) 238

He's not telling you what to do with your code. From the same interview:

"Some people love the BSD license. Some people love the proprietary licenses. I understand that. If you want to make a program and you want to feed your kids, it makes a lot of sense to have a proprietary license and sell binaries. I think it makes less sense today, but I really understand the argument. I don't want to judge. I'm just giving my view on licensing."

Submission + - SPAM: China homegrown electronic and world's fastest supercomputer 1

Taco Cowboy writes: Clocked in at 93 Petaflop (or 93,000 trillion calculations per second), the new ShenWei (roughly translates to The Wrath of God in Mandarin) TaihuLight tops the world's fastest supercomputer list

Twice as fast and three times as efficient as the previous leader Tianhe-2, the new ShenWei Installed at the National Supercomputing Centre in Wuxi and comprised of 10.5 million locally-made processing cores grouped into 40,960 nodes (with each node having 260 processor cores) the computer runs on the Linux Operating System

The processor is divided into four core groups, each with 64 computing processing elements (CPE) and a management processing element (MPE). Each core group also includes a memory controller delivering an aggregate memory bandwidth of 136.5 GB/second on each socket. It runs at a relatively modest 1.45 GHz and supports just a single execution thread per core

The chip was manufactured at the National High Performance Integrated Circuit Design Center, in Shanghai. The process technology node has not been revealed

Memory-wise, each node contains 32 GB, adding up to a little over 1.3 PB for the whole machine

Its main applications include advanced manufacturing, weather forecasting and big data analytics, wrote Jack Dongarra in a paper about the new machine ( [spam URL stripped]... )

Pierre Ferragu, tech analyst at Bernstein, said the ranking showed that China was “pulling together all the building blocks of an independent semiconductor value chain”

The system is also rather light on cache. In fact, it really doesn’t have any in the L1-L2-L3 sense. Each core is allocated 12 KB of instruction cache, along with 64 KB of local scratchpad

From a power standpoint though, TaihuLight is quite good. It draws 15.3 megawatts (MW) running Linpack, which, somewhat surprisingly, is less power than its 33-petaflop cousin, Tianhe-2, which uses 17.8 MW. TaihuLight’s energy-efficiency of 6 gigaflops/watt is excellent, which will certainly earn it a place in the upper reaches of the Green500 list

The interconnect, simply known as the Sunway Network, is also a homegrown affair. It’s noteworthy that the older Sunlight BlueLight machine employed QDR InfiniBand for the system network. The TaihuLight one, however, is based on PCIe 3.0 technology, and provides 16 GB/second of node-to-node peak bandwidth, with a latency of around 1 microsecond

Running MPI communications over it slows that down to about 12 GB/second. Such performance is pretty much on par with EDR InfiniBand or even 100G Ethernet, although the latency seems a tad high (it depends on exactly what’s being measured, of course). In any case, it looks like the design team opted for simplicity here, rather than breakneck speeds using exotic technology

“The latest list marks the first time since the inception of the TOP500 that the US is not home to the largest number of systems,” wrote the authors of the ranking. “With a surge in industrial and research installations registered over the last few years, China leads with 167 systems and the US is second with 165”

Info compiled from the following list of url:
[spam URL stripped]...
[spam URL stripped]...
[spam URL stripped]...
[spam URL stripped]...

Link to Original Source

Submission + - PowerVR Wizard GPU does real-time ray tracing on low power PCIe card (imgtec.com)

alexvoica writes: During GDC 2014, Imagination introduced PowerVR Wizard, a new and scalable GPU architecture capable of running high-performance, real-time ray tracing applications in a tiny power budget.

Now Imagination is showing this new GPU working at full speed on a 28nm chip integrated on a PCIe evaluation board.

The PowerVR GR6500 is a mobile GPU that integrates fixed-function hardware for ray tracing workloads. Its die size, GFLOPS performance, bandwidth requirements and power consumption mean that it is comparable to the GPUs already available in smart phones today. But compared with a console GPU or looking towards the smart phones and handheld devices of the future, the Wizard architecture scales in capabilities and performance to more powerful cores.

To demonstrate this scalability, Imagination is showing several of the GR6500 boards working inside the same system. This configuration offers a proof point for high throughput ray tracing, in excess of a billion rays per second.

Submission + - New dev kit for IoT includes boards, sensors and open source software (kickstarter.com)

alexvoica writes: Imagination Technologies is using Kickstarter to introduce a new development kit designed for IoT applications. It is called Creator Ci40 and includes all the optimized hardware and open source software required for next-generation connected projects.
Creator Ci40 is a modular system that is easy to assemble and even easier to code. Developers can use it to prototype the hardware needed for an IoT application in five easy steps.
The Kickstarter campaign is aiming to raise £20,000 with pricing for the kit currently set at £80 (a £10 discount is offered to the first 200 backers).
The new Creator comes in a compact box with everything needed to build the next wireless IoT application including:
Hardware
— A high-performance, low-power microcomputer acting as an IoT hub and featuring a new MIPS-based chip optimized for IoT applications; the microcomputer can run a number of Linux-based operating system, including OpenWrt, Debian as well as Brillo from Google
— Two battery-powered 6LoWPAN Clicker expansion boards with a mikroBUS socket for adding sensors
— Three Click companion boards – a temperature sensor, a motion sensor and a relay switch (with hundreds more available from MikroElektronika)
Software
— FlowCloud: a complete cloud platform for connecting devices to the internet, enabling easy product registration and updates as well as access to partner-enabled services
— Open source software frameworks, network stacks and cloud connectivity

Submission + - Imagination's MIPS based Creator Ci40 IoT DevKit on Kickstarter (imgtec.com)

myrrdyn writes: Imagination presented today the new Ci40 IoT development kit, launching a Kickstarter project at the same time.

Recent research from Gartner suggests that by 2020 the Internet of Things market will grow to include billions of connected devices from smart sensors and gateways to data centers and other computing platforms.

To accelerate IoT development, Imagination is today introducing Creator Ci40, the most complete development kit for the Internet of Things.

The package includes three sensors, two battery-powered wireless boards, and a powerful IoT hub, providing the hardware components required to quickly prototype IoT wireless devices. In addition, every kit includes a free subscription to FlowCloud, a robust cloud platform for connecting embedded devices to the Internet.

Comment Re:First request for Slashdot video...EVAR (Score 1) 63

This topic might have warranted a video, considering it's a demo. It would sure beat all the "some dude talks about something for flipping forever" videos Slashdice keeps trying to dump on us instead.

As I already pointed out in a different post, there are some video interviews on Numberphile:
https://www.youtube.com/playli...

Ok, it's not a Slashdot video but hey :-)

Security

Submission + - Anonymous Hacks Vatican Website (zdnet.com)

An anonymous reader writes: Anonymous has hacked the Vatican. The website for the Catholic Church, vatican.va, is currently down. This appears to be a typical Distributed Denial of Service (DDoS) attack, meaning no actual data was compromised: the website was simply overloaded with requests. As such, while the site was hacked, it will likely be back up shortly.
Education

Submission + - How much tech can kids take? (pcpro.co.uk)

Barence writes: "Are today's children facing technology overload, or simply gearing themselves up for life in a digital world? PC Pro has examined the effects of exposing children to technology at a young age. Researchers warn of the potential dangers of too much “screen time”, pointing to alarming (some say scaremongering) research that suggests over-exposure leads to an increased risk of developing autism and Attention Deficit Hyperactivity Disorder (ADHD).

Educators, meanwhile, highlight how technology can improve interaction between child and parent, and provide essential life skills, such as enhanced communication and multitasking. Parents are left with conflicting messages — but how much technology is too much technology for children?"

Submission + - The tunnel between CERN and Central Italy (google.com)

fph il quozientatore writes: The Italian ministry for university and research complimented the researchers for the recent (supposed) discovery of faster-than-light neutrinos. Her press release (Google machine translation) mentions that Italy funded the construction of a "tunnel between the CERN [in Geneva] and Gran Sasso [the labs in Central Italy]". Google maps reports the distance between the two labs as over 900km — but of course once the tunnel is open to traffic the trip will be much faster.

Slashdot Top Deals

Nature always sides with the hidden flaw.

Working...