Math

Has the Decades-Old Floating Point Error Problem Been Solved? (insidehpc.com) 124

overheardinpdx quotes HPCwire: Wednesday a company called Bounded Floating Point announced a "breakthrough patent in processor design, which allows representation of real numbers accurate to the last digit for the first time in computer history. This bounded floating point system is a game changer for the computing industry, particularly for computationally intensive functions such as weather prediction, GPS, and autonomous vehicles," said the inventor, Alan Jorgensen, PhD. "By using this system, it is possible to guarantee that the display of floating point values is accurate to plus or minus one in the last digit..."

The innovative bounded floating point system computes two limits (or bounds) that contain the represented real number. These bounds are carried through successive calculations. When the calculated result is no longer sufficiently accurate the result is so marked, as are all further calculations made using that value. It is fail-safe and performs in real time.

Jorgensen is described as a cyber bounty hunter and part time instructor at the University of Nevada, Las Vegas teaching computer science to non-computer science students. In November he received US Patent number 9,817,662 -- "Apparatus for calculating and retaining a bound on error during floating point operations and methods thereof." But in a followup, HPCwire reports: After this article was published, a number of readers raised concerns about the originality of Jorgensen's techniques, noting the existence of prior art going back years. Specifically, there is precedent in John Gustafson's work on unums and interval arithmetic both at Sun and in his 2015 book, The End of Error, which was published 19 months before Jorgensen's patent application was filed. We regret the omission of this information from the original article.
Transportation

Challenging Tesla, Ferrari Will Build An Electric Sportscar -- and an SUV (theverge.com) 78

Long-time Slashdot reader Kant shared an article from The Verge: Ferrari will build a battery-electric supercar in a bid to challenge Tesla for a piece of the high-end, eco-conscious luxury market. CEO Sergio Marchionne, who also heads Fiat Chrysler, said that the Italian racecar company would also make a Ferrari SUV -- after previously dismissing the idea as ridiculous. Speaking at the North American International Auto Show in Detroit, Marchionne didn't offer any specifics on the electric Ferrari, but indicated the company would release it before the Tesla Roadster hits the road in 2020.

"If there is an electric supercar to be built, then Ferrari will be the first," Marchionne said, according to Bloomberg. "People are amazed at what Tesla did with a supercar: I'm not trying to minimize what Elon did but I think it's doable by all of us."

BMW and Porsche also have plans to introduce all-electric supercars, and Marchionne says "I don't know of a [business] that is making money selling electric vehicles unless you are selling them at the very, very high end of the spectrum."

His remarks were also "a significant departure" from comments made in 2016 about the Ferrari SUV: 'You have to shoot me first.'"
Open Source

'Is It Time For Open Processors?' (lwn.net) 158

Linux kernel developer (and LWN.net co-founder) Jonathan Corbet recently posted an essay with a tantalizing title: "Is it time for open processors?" He cited several "serious initiatives", including the OpenPOWER effort, OpenSPARC, and OpenRISC, adding that "much of the momentum" appears to be with the RISC-V architecture. An anonymous reader quotes LWN.net: The [RISC-V] project is primarily focused on the instruction-set architecture, rather than on specific implementations, but free hardware designs do exist. Western Digital recently announced that it will be using RISC-V processors in its storage products, a decision that could lead to the shipment of RISC-V by the billion. There is a development kit available for those who would like to play with this processor and a number of designs for cores are available... RISC-V seems to have quite a bit of commercial support behind it -- the RISC-V Foundation has a long list of members. It seems likely that this architecture will continue to progress for some time.
Here's some of the reasons that Corbet argues open souce hardware "would certainly offer some benefits, but it would be no panacea."
Red Hat Software

Red Hat Reverts Spectre Patches to Address Boot Issues (bleepingcomputer.com) 73

An anonymous reader quotes BleepingComputer: Red Hat is releasing updates for reverting previous patches for the Spectre vulnerability (Variant 2, aka CVE-2017-5715) after customers complained that some systems were failing to boot. "Red Hat is no longer providing microcode to address Spectre, variant 2, due to instabilities introduced that are causing customer systems to not boot," the company said yesterday. "The latest microcode_ctl and linux-firmware packages are reverting these unstable microprocessor firmware changes to versions that were known to be stable and well tested, released prior to the Spectre/Meltdown embargo lift date on Jan 3rd," Red Had added.

Instead, Red Hat is recommending that each customer contact their OEM hardware provider and inquire about mitigations for CVE-2017-5715 on a per-system basis. Besides Red Hat Enterprise Linux, other RHEL-based distros like CentOS and Scientific Linux are also expected to be affected by Red Hat's decision to revert previous Spectre Variant 2 updates, so these users will also have to contact CPU/OEM vendors.

At least one site "characterized the move as Red Hat washing its hands of the responsibility to provide customers with firmware patches," writes Data Center Knowledge, arguing instead that Red Hat "isn't actually involved in writing the firmware updates. It passes the microcode created by chipmakers to its users 'as a customer convenience.'" "What I would have said if they'd asked us ahead of time is that microcode is something that CPU vendors develop," Jon Masters, chief ARM architect at Red Hat, told Data Center Knowledge in a phone interview Thursday. "It's actually an encrypted, signed binary image, so we don't have the capability, even if we wanted to produce microcode. It's a binary blob that we cannot generate. The only people who can actually generate that are the CPU vendors."
Nintendo

Nintendo's Newest Switch Accessories Are DIY Cardboard Toys (theverge.com) 74

sqorbit writes: Nintendo has announced a new experience for its popular Switch game console, called Nintendo Labo. Nintendo Labo lets you interact with the Switch and its Joy-Con controllers by building things with cardboard. Launching on April 20th, Labo will allow you to build things such as a piano and a fishing pole out of cardboard pieces that, once attached to the Switch, provide the user new ways to interact with the device. Nintendo of America's President, Reggie Fils-Aime, states that "Labo is unlike anything we've done before." Nintendo has a history of non-traditional ideas in gaming, sometimes working and sometimes not. Cardboard cuts may attract non-traditional gamers back to the Nintendo platform. While Microsoft and Sony appear to be focused on 4K, graphics and computing power, Nintendo appears focused on producing "fun" gaming experiences, regardless of how cheesy or technologically outdated they me be. Would you buy a Nintendo Labo kit for $69.99 or $79.99? "The 'Variety Kit' features five different games and Toy-Con -- including the RC car, fishing, and piano -- for $69.99," The Verge notes. "The 'Robot Kit,' meanwhile, will be sold separately for $79.99."
Privacy

Trump Signs Surveillance Extension Into Law (thehill.com) 93

President Trump took to Twitter this afternoon to announce that he has signed a six-year renewal of a powerful government surveillance tool. "Just signed 702 Bill to authorize foreign intelligence collection," Trump tweeted. "This is NOT the same FISA law that was so wrongly abused during the election. I will always do the right thing for our country and put the safety of the American people first!" The Hill reports: Section 702 of the Foreign Intelligence Surveillance Act (FISA), which the Senate voted to renew with a few small tweaks this week, allows the U.S. to spy on foreigners overseas. The intelligence community says the program is a critical tool in identifying and disrupting terror plots. But the broader surveillance law, which governs U.S. spying on foreigners, has become politically entangled with the controversy over the federal investigation into Trump's campaign and Russia. Some Republicans have claimed that the FBI inappropriately obtained a politically motivated FISA warrant to spy on Trump during the transition and on Friday, Capitol Hill was consumed with speculation about a four-page memo produced by House Intelligence Committee Republicans that some GOP lawmakers hinted contained evidence of such wrongdoing.
Printer

You Could Soon Be Manufacturing Your Own Drugs -- Thanks To 3D Printing (sciencemag.org) 97

sciencehabit shares a report from Science Magazine: Forget those long lines at the pharmacy: Someday soon, you might be making your own medicines at home. That's because researchers have tailored a 3D printer to synthesize pharmaceuticals and other chemicals from simple, widely available starting compounds fed into a series of water bottle -- size reactors. The work, they say, could digitize chemistry, allowing users to synthesize almost any compound anywhere in the world.

In today's issue of Science, Leroy Cronin, a chemist at the University of Glasgow in the United Kingdom, and his colleagues report printing a series of interconnected reaction vessels that carry out four different chemical reactions involving 12 separate steps, from filtering to evaporating different solutions. By adding different reagents and solvents at the right times and in a precise order, they were able to convert simple, widely available starting compounds into a muscle relaxant called baclofen. And by designing reactionware to carry out different chemical reactions with different reagents, they produced other medicines, including an anticonvulsant and a drug to fight ulcers and acid reflux. So why not just buy a reactionware kit and scrap the printing? "This approach will allow the on-demand production of chemicals and drugs that are in short supply, hard to make at big facilities, and allow customization to tailor them to the application," Cronin says.

Power

US Tests Nuclear Power System To Sustain Astronauts On Mars (reuters.com) 194

Initial tests in Nevada on a compact nuclear power system designed to sustain a long-duration NASA human mission on the inhospitable surface on Mars have been successful and a full-power run is scheduled for March, officials said on Thursday. Reuters reports: National Aeronautics and Space Administration and U.S. Department of Energy officials, at a Las Vegas news conference, detailed the development of the nuclear fission system under NASA's Kilopower project. Months-long testing began in November at the energy department's Nevada National Security Site, with an eye toward providing energy for future astronaut and robotic missions in space and on the surface of Mars, the moon or other solar system destinations. A key hurdle for any long-term colony on the surface of a planet or moon, as opposed to NASA's six short lunar surface visits from 1969 to 1972, is possessing a power source strong enough to sustain a base but small and light enough to allow for transport through space. NASA's prototype power system uses a uranium-235 reactor core roughly the size of a paper towel roll. The technology could power habitats and life-support systems, enable astronauts to mine resources, recharge rovers and run processing equipment to transform resources such as ice on the planet into oxygen, water and fuel. It could also potentially augment electrically powered spacecraft propulsion systems on missions to the outer planets.
Operating Systems

Google's Fuchsia OS On the Pixelbook (arstechnica.com) 72

An anonymous reader quotes a report from 9to5Google: Our early look at Fuchsia OS last May provided a glimpse into a number of new interface paradigms. Several months later, we now have an updated hands-on with Google's future operating system that can span various form factors. This look at the in-development OS eight months later comes courtesy of Ars Technica who managed to get Fuchsia installed on the Pixelbook. The Made by Google Chromebook is only the third officially supported "target device" for Fuchsia development. As our last dive into the non-Linux kernel OS was through an Android APK, we did not encounter a lockscreen. The Ars hands-on shows a basic one that displays the time at center and Fuchsia logo in the top-left corner to switch between phone and desktop/tablet mode, while a FAB (of sorts) in the opposite corner lets users bring up WiFi controls, Login, and Guest.

Only Guest is fully functioning at this stage -- at least for non-Google employees. Once in this mode, we encounter an interface similar to the one we spotted last year. The big difference is how Google has filled in demo information and tweaked some elements. On phones and tablets, Fuchsia essentially has three zones. Recent apps are above, at center are controls, and below is a mixture of the Google Feed and Search. The controls swap out the always-displayed profile icon for a Fuchsia button. Tapping still surfaces Quick Settings which actually reflect current device battery levels and IP address. Impressively, Ars found a working web browser that can actually surf the internet. Google.com is the default homepage, with users able to visit other sites through that search bar. Other examples of applications, which are just static images, include a (non-working) phone dialer, video player, and Google Docs. The Google Calendar is notable for having subtle differences to any known version, including the tablet or web app.

XBox (Games)

Microsoft Puts Minecraft Boss In Charge of Xbox Games (theverge.com) 50

Microsoft is promoting its Minecraft boss to the head of the company's games studios. "Matt Booty's new role sees him oversee Microsoft Studios, second only to Microsoft's games chief Phil Spencer," reports The Verge. "Microsoft CEO Satya Nadella previously promoted Phil Spencer from head of Xbox to a new role overseeing all games, associated hardware, and game strategy." From the report: Spencer reports directly to Nadella, with Booty now reporting directly to Spencer. GamesBeat reports that Booty's new role will see Microsoft devoting more resources to its games business. Booty will be looking after Microsoft's relationships with 343 Industries, The Coalition, Mojang, Rare, Turn 10 Studios, and Global Publishing. Booty first joined Microsoft back in 2010, and helped launch games for Windows phones. He's also helped develop Xbox Live Arcade, and oversaw Minecraft maker Mojang after Microsoft acquired the company for $2.5 billion back in 2014.
Businesses

Tim Cook Says Power Management Feature In Older iPhones Will Be Able To Be Turned Off In Future Update (macrumors.com) 153

In an interview with Rebecca Jarvis of ABC News, Apple CEO Tim Cook touched on the ongoing controversy over power management features in older iPhones. He says that a future update will allow customers to turn off the power management feature that has caused older iPhones to slow down. Mac Rumors reports: According to Cook, when the power management features were first introduced in iOS 10.2.1, Apple did explain what was going on, but following the controversy, he believes Apple should have been clearer. The company did indeed mention that the shutdown issue was caused by uneven power delivery and explained that its power management system had been tweaked, but there was no clear notice that it could cause devices to operate more slowly at times. Cook says Apple "deeply apologizes" to customers who thought the company had other motivations. Apple is introducing better battery monitoring features in a future iOS update, and Cook says Apple will also allow customers to turn off the power management feature, which is new information that the company has not previously shared. The majority of the interview was focused on the announcements that Apple made today. The company plans to contribute $350 billion in the U.S. economy over the next five years, as well as issue employees a bonus of $2,500 of restricted stock units following the introduction of the new U.S. tax law.
Transportation

LAPD Is Not Using the Electric BMWs It Announced In 2016 (cbslocal.com) 134

mi shares a report from CBS Los Angeles: "In a 2016 well-choreographed press conference, LAPD Chief Charlie Beck got out of an electric BMW driven by Mayor Garcetti to tout the city's ambitious project [to provide electric cars for the department]," reports CBS Los Angeles. "The cost: $10.2 million, which includes charging stations." However, the cars have seen very little use. With the monthly lease payment of a little more than $418, one vehicle ends up costing taxpayers over $15 a mile to use. Some of the use they do get is improper too, alleges CBS Los Angeles, citing footage captured from several hidden cameras. "We followed someone after leaving the downtown police garage; they went to the drive-through at Yoshinoya," reports CBS. "On another day, someone drove from downtown LA to Loyola Marymount University in West LA, picked up someone who appeared to be a student, and went to lunch." The deputy chief is looking into what CBS found and says the cars are to be used for business only.
Security

Many Enterprise Mobile Devices Will Never Be Patched Against Meltdown, Spectre (betanews.com) 103

Mark Wilson shares a report from BetaNews: The Meltdown and Spectre bugs have been in the headlines for a couple of weeks now, but it seems the patches are not being installed on handsets. Analysis of more than 100,000 enterprise mobile devices shows that just a tiny percentage of them have been protected against the vulnerabilities -- and some simply may never be protected. Security firm Bridgeway found that just 4 percent of corporate phones and tablets in the UK have been patched against Spectre and Meltdown. Perhaps more worryingly, however, its research also found that nearly a quarter of enterprise mobile devices will never receive a patch because of their age. Organizations are advised to check for the availability of patches for their devices, and to install them as soon as possible. Older devices that will never be patched -- older than Marshmallow, for example -- should be replaced to ensure security, says Bridgeway.
Wireless Networking

Google Home and Chromecast Could Be Overloading Your Home Wi-Fi (theverge.com) 129

Google Cast products could be to blame for your wonky internet connection. According to TP-Link, "The Cast feature normally sends packets of information at regular intervals to keep a live connection with products like Google Home," reports The Verge. "However, if the device is awakened from a 'sleep' mode, it will sometimes send a burst of information at once, which can overwhelm a router. The longer a Cast device has been in 'sleep' mode, the more information it might send at once." The engineer says that could exceed over 100,000 packets, an amount that "may eventually cause some of [the] router's primary features to shut down -- including wireless connectivity."

TP-Link has reportedly fixed the issue in its C1200 router, but a broader fix from Google's end has not been found.
Businesses

Now Hiring For a Fascinating New Kind of Job That Only a Human Can Do: Babysit a Robot (wired.com) 79

From a report: Book a night at LAX's Residence Inn and you may be fortunate enough to meet an employee named Wally. His gig is relatively pedestrian -- bring you room service, navigate around the hotel's clientele in the lobby and halls -- but Wally's life is far more difficult than it seems. If you put a tray out in front of your door, for instance, he can't get to you. If a cart is blocking the hall, he can't push it out of the way. But fortunately for Wally, whenever he gets into a spot of trouble, he can call out for help. See, Wally is a robot -- specifically, a Relay robot from a company called Savioke. And when the machine finds itself in a particularly tricky situation, it relies on human agents in a call center way across the country in Pennsylvania to bail it out. [...]

The first companies to unleash robots into service sectors have been quietly opening call centers stocked with humans who monitor the machines and help them get out of jams. "It's something that's just starting to emerge, and it's not just robots," says David Poole, CEO and co-founder of Symphony Ventures, which consults companies on automation. "I think there is going to be a huge industry, probably mostly offshore, in the monitoring of devices in general, whether they're health devices that individuals wear or monitoring pacemakers or whatever it might be."

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