Forgot your password?
Close
typodupeerror

Submission + - AMD Ryzen Threadripper Launched: Performance Benchmarks Vs Intel Skylake-X (hothardware.com)

Submitted by MojoKid
MojoKid writes: AMD continues its attack on the desktop CPU market versus Intel today, with the official launch of the company's Ryzen Threadripper processors. Threadripper is AMD's high-end, many-core desktop processor, that leverages the same Zen microarchitecture that debuted with Ryzen 7. The top-end Ryzen Threadripper 1950X is a multi-chip module featuring 16 processor cores (two discrete die), with support for 32 threads. The base frequency for the 1950X is 3.4GHz, with all-core boost clocks of up to 3.7GHz. Four of the cores will regularly boost up to 4GHz, however, and power and temperature permitting, those four cores will reach 4.2GHz when XFR kicks in. The 12-core Threadripper 1920X has very similar clocks and its boost and XFR frequencies are exactly the same. The Threadripper 1920X's base-clock, however, is 100MHz higher than its big brother, at 3.5GHz. In a litany of benchmarks with multi-threaded workloads, Threadripper 1950X and 1920X high core-counts, in addition to strong SMT scaling, result in the best multi-threaded scores seen from any single CPU to date. Threadripper also offers massive amounts of memory bandwidth and more IO than other Intel processors. Though absolute power consumption is somewhat high, Threadrippers are significantly more efficient than AMD's previous-generation processors. In lightly-threaded workloads, Threadripper trails Intel's latest Skylake-X CPUs, however, which translates to lower performance in applications and games that can't leverage all of Threadripper's additional compute resources. Threadripper 1950X and 1920X processors are available starting today at $999 and $799, respectively. On a per-core basis, they're less expensive than Intel Skylake-X and very competitively priced.

Submission + - Maybe Americans Don't Need Fast Home Internet Service, FCC Suggests (arstechnica.com)

Submitted by Anonymous Coward
An anonymous reader writes: Americans might not need a fast home Internet connection, the Federal Communications Commission suggests in a new document. Instead, mobile Internet via a smartphone might be all people need. The suggestion comes in the FCC's annual inquiry into broadband availability. Section 706 of the Telecommunications Act requires the FCC to determine whether broadband (or more formally, "advanced telecommunications capability") is being deployed to all Americans in a reasonable and timely fashion. If the FCC finds that broadband isn't being deployed quickly enough to everyone, it is required by law to "take immediate action to accelerate deployment of such capability by removing barriers to infrastructure investment and by promoting competition in the telecommunications market."

The FCC found during George W. Bush's presidency that fast Internet service was being deployed in a reasonable and timely fashion. But during the Obama administration, the FCC determined repeatedly that broadband isn't reaching Americans fast enough, pointing in particular to lagging deployment in rural areas. These analyses did not consider mobile broadband to be a full replacement for a home (or "fixed") Internet connection via cable, fiber, or some other technology. Last year, the FCC updated its analysis with a conclusion that Americans need home and mobile access. Because home Internet connections and smartphones have different capabilities and limitations, Americans should have access to both instead of just one or the other, the FCC concluded under then-Chairman Tom Wheeler.

Submission + - A true random number generator built from carbon nanotubes (ieee.org)

Submitted by Wave723
Wave723 writes: IEEE Spectrum reports on a true random number generator that was created with single-walled semiconducting carbon nanotubes. Researchers at Northwestern University printed a SRAM cell with special nanotube ink, and used it to generate random bits based on thermal noise. This method could be used to improve the security of flexible or printed electronics.

Submission + - Can Pirmordial Black Holes Alone Account for Dark Matter?

Submitted by thomst
thomst writes: Slashdot stories have reported extensively on the LIGO experiments' initial detection of gravity waves emanating from collisions of primordial black holes, beginning, on February 11, 2016, with the first (and most widely-reported) such detection. Other Slashdot articles have chronicled the second LIGO detection event and the third one. There's even been a Slashdot report on the Synthetic Universe supercompter model that provided support for the conclusion that the first detection event was, indeed, of a collision between two primordial black holes, rather than the more familiar stellar remnant kind that result from more recent supernovae of large-mass stars.

What interests me is the possibility that black holes of all kinds — and particularly primordial black holes — are so commonplace that they may be all that's required to explain the effects of "dark matter". Dark matter, which, according to current models, makes up some 26% of the mass of our Universe, has been firmly established as real, both by calculation of the gravity necessary to hold spiral galaxies like our own together, and by direct observation of gravitational lensing effects produced by the "empty" space between recently-collided galaxies. There's no question that it exists. What is unknown, at this point, is what exactly it consists of.

The leading candidate has, for decades, been something called WMPs (Weakly-Interacting Massive Particles), a theoretical notion that there are atomic-scale particles that interact with "normal" baryonic matter only via gravity. The problem with WIMPs is that, thus far, not a single one has been detected, despite years of searching for evidence that they exist via multiple, multi-billion-dollar detectors.

With the recent publication of a study of black hole populations in our galaxy (article paywalled, more layman-friendly press release at Phys.org) that indicates there may be as many as 100 million stellar-remnant-type black holes in the Milky Way alone, the question arises, "Is the number of primordial and stellar-remnant black holes in our Universe sufficient to account for the calculated mass of dark matter, without having to invoke WIMPs at all?"

I don't personally have the mathematical knowledge to even begn to answer that question, but I'm curious to find out what the professional cosmologists here think of the idea.
User Journal

Journal Journal: The new podcast

Journal by DisownedSky

I'm trying to not let this turn into an obsession, or to dstract from my work on the Wow! Signal, but so far it kind of is. The new podcast is the Unseen Podcast, and it is an uneditted, uncensored, open participation approach. Each episode features a panel, with the panelists drawn from a pool of people who just raise their hands by joining a G+ community. So far, we've done 4 episodes with 5 unique panelists, hoping to hit 30 panelists by Episode 26.

Submission + - What would Minecraft 2 look like under Microsoft? (redbull.com)

Submitted by Anonymous Coward
An anonymous reader writes: Microsoft spent billions purchasing Mojang, the studio behind the game Minecraft, and while it's unlikely to start work on a sequel anytime soon, rather than continue development of the game, it's worth considering what a Minecraft 2 will look like. After all, as a public company with revenues to justify, it doesn't seem beyond unreasonable a few years down the line, especially since a Minecraft-like game was one of the stand-out tech demos shown for the software giant's HoloLens augmented reality headset. As the author points out, Microsoft will have to tread carefully, tackling issues like whether greater graphical fidelity is actually what players will want ever — and whether to continue to support Minecraft on PlayStation.

Submission + - Darkleaks: An Online Black Market For Selling Secrets

Submitted by Anonymous Coward
An anonymous reader writes: Whistleblowers and those individuals that are simply out to make a buck out of any confidential and valuable information, can now offer it for sale on Darkleaks, a decentralized, anonymous black market on the Internet. The Darkleaks project is built on top of the Bitcoin blockchain, and can be used by downloading this software package (source code is open).

Submission + - Resistant Bacterial Infection outbreak at California Hospital (go.com)

Submitted by puddingebola
puddingebola writes: From the article, " A potentially deadly "superbug" resistant to antibiotics has infected seven patients, including two who died, and more than 160 others were exposed at Ronald Reagan UCLA Medical Center through contaminated medical instruments, the hospital revealed. The drug-resistant superbug known as CRE was likely transmitted to the Los Angeles patients by contaminated medical scopes during endoscopic procedures that took place between October 2014 and January 2015, a university statement said. " UCLA says the infections occurred via contaminated endoscopes that were sterilized according to the manufacturer's specifications.

Submission + - Tens of thousands of home routers at risk with duplicate SSH keys

Submitted by alphadogg
alphadogg writes: A setup mistake has apparently left hundreds of thousands of home routers running the SSH (Secure Shell) remote access tool with identical private and public keys. John Matherly, founder of a specialized search engine company whose technology is used for querying Internet-connected devices, found more than 250,000 devices that appear to be deployed by Telefónica de España sharing the same public SSH key. A different search found another 150,000 devices, mostly in China and Taiwan, that have the same problem. Matherly said in a phone interview on Wednesday it is possible the manufacturers copied the same operating system image to all of the routers.

Submission + - Samsung buying LoopPay; competes head-on with Apple Pay and Google Wallet. (cnet.com)

Submitted by Anonymous Coward
An anonymous reader writes: Samsung is buying our major Apple Pay and Google Wallet competitor LoopPay. The major advantage this has over the two alternatives is that this works with existing POS card readers, so it's already accepted everywhere Apple Pay and Google Wallet are trying to get to. Not being an Apple fan and not trusting Google to store all my financial data on their servers, this alone would make me switch to a Samsung phone.

Slashdot Top Deals

Top Ten Things Overheard At The ANSI C Draft Committee Meetings: (1) Gee, I wish we hadn't backed down on 'noalias'.

Close