Tag - Cuda
A researcher has broken the record for calculating the mathematical constant Pi, by using a number of computers running with Nvidia graphics cards. Ed Karrels of Santa Clara University used the GPUs in the graphics cards instead of normal computer processors in order to calculate pi to eight-quadrillion places.
NVIDIA took a major step towards spurring growth of its CUDA general-purpose code technology for video cards on Tuesday by posting the CUDA source code. Developers and education now have access to a variant on the LLVM compiler that will let them add new processor types and languages. The extension could see CUDA run on AMD's Radeon hardware, Intel's integrated graphics, and even use relatively old code like Fortran.
NVIDIA's is reportedly set to introduce a new flagship graphics card, which is said to carry the label GeForce GTX 590. Corroborating earlier leaks, the card will allegedly integrate dual GF110 GPUs with a combined 1024 CUDA cores and 3GB of memory, sources have told NordicHardware. The latest information suggests separate leak, which was tied to the name GTX 595, may have been an prototype of the 590.
NVIDIA today confirmed its second-ever GeForce 500 series chipset in a push to bring its new graphics to the mainstream. The GTX 570 has the exact same 480 cores as the old GTX 480 but, through the refined architecture, runs at a higher 732MHz main clock speed, 1.46GHz clock for each core and a 1.9GHz memory clock. It uses a narrower 320-bit memory interface (down from 384 bits) but, due to the combined improvements, has a higher texture fill rate bumped up from 42 billion to 43.9 billion pixels per second.
NVIDIA overnight quietly brought out its first 500-series GeForce notebook graphics. The GeForce GT 540M like the GTX 580 is primarily a clock speed increase with an increase in its main and effects core clock speeds to 672MHz and 1.34GHz each. It shares the GeForce GT 435M's 96 cores and 128-bit memory bandwidth.
A US patent filing published today has raised concerns as it could give Microsoft control of hardware-accelerated video encoding. A continuance of an application for "accelerated video encoding using a graphics processing unit" would cover the common technique of calculating motion for video processing with the video chipset in a computer rather than the regular, usually slower main CPU. Its techniques are broad and cover tricks like turning each frame into macroblocks to process them in parallel.
NVIDIA today confirmed its rumored entry-level video chipset, the GeForce GT 430. The design is targeted at home theater computers and other systems where video playback support is more important than raw 3D performance and now supports HDMI with passthrough audio. It can output HDMI 1.4a for full 3D video along with Dolby TrueHD and DTS-HD Master Audio surround sound.
NVIDIA chief Jen-Hsun Huang today at its GPU Technology Conference said his company would bring its CUDA general-purpose computing language directly to x86 chips. The approach developed with the Portland Group will let systems without NVIDIA cards handle the code. It will work best with multi-core processors and is seen as ideal for servers.
NVIDIA's first mainstream GeForce 400 notebook chipset, the GT 425M, has surfaced in leaks earlier this month. Semi-Accurate noted that the graphics core has been listed as showing in a 17-inch ASUS notebook, but with different features. Some list it as only a DirectX 10 chip, implying that it's only a refreshed 300M chip, while others mention DirectX 11 and that it would use a version of the Fermi architecture in the GTX 480M.
NVIDIA today brought out its first more frugal GeForce 400 series chipset in the form of the GeForce GTX 460. The recently leaked hardware uses the new 40 nanometer, GF104 chipset and is actually in some areas faster than the GTX 465. It has fewer stream (visual rendering) processors, at 336 versus 352, but has more texture addresses at 56 compared to 44; it also has a faster clock speeds across the board with a 675MHz core, 1.35GHz shader (effect) clock speeds, and a 900MHz actual speed for its GDDR5 memory.
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WhatsApp now handles over 100M calls daily
WhatsApp is celebrating that it is being used for over 100 million calls every day. In a brief notice, the Facebook-owned messaging platform advises the voice-calling feature it rolled out to its users last year now deals with an average of over 1,100 calls initiated per second. Earlier this year, it increased the security of its calls and other messages, by introducing end-to-end encryption on all platforms. http://bit.ly/292HqCX
Adele's '25' album now streaming
Recording artist Adele has "pulled a Kanye" after saying that her current album "25" would not be available for streaming. The seven-month-old record, which has yielded a number of hit singles, is now available for streaming on all the major streaming services, such as Apple Music and Spotify, as of today in most major markets, with worldwide distribution to come. Reportedly, the singer had demanded streaming be limited to paid subscribers -- a condition that has hurt some streamers with artists, who aren't paid royalties for free or trial listens . Apple pays performers its normal royalty rates during its free trial, avoiding the issue -- and having repeated success in both signing up exclusives and placing those exclusives into the top of the charts. http://ti.me/28U7NOu
SanDisk iXpand case has battery, storage
A new iPhone 6 and iPhone 6s case from SanDisk appears to be the "holy grail" of accessories: a stylish and protective case that offers both extra storage as well as the option of extra battery power as well. The iXpand Memory case offers either 32GB, 64GB, or 128GB of additional storage incorporated into the case, and an optional add-on battery pack (sold separately) adds up to an extra day or more of charge. Through the associated iXpand app, camera photos and videos can be automatically stored on the extra storage, optionally password-protected, The cost for the case is (in order of storage capacity) $60, $100, and $130. The battery pack's release data has not yet been announced, but the add-on should retail for an additional $30. http://bit.ly/291epHu
Fifth Hong Kong store to open June 30
The 46th official Apple store in what the company calls the "Greater China" region will open at 10AM local time in Hong Kong's New Town Plaza in the Sha Tin district on Thursday, June 30, according to a new page on Apple's retail website. Despite slowing growth due to economic turmoil in China, the country is still Apple's fastest-growing market. The new story will be the fifth for Hong Kong, a lucrative market for Apple thanks to the high concentration of wealth there and a thriving "gray" market. Normal store hours for the new store will be 10AM to 10PM every day. http://apple.co/291diaT
Apple Music bug bites very short songs
There appears to be a reproducible bug in the current version of iTunes -- version 12.4.1, running on OS X 10.11.5, both the current non-beta versions of the respective software -- that causes a streamed song to become "stuck" in endless buffering if the streamed item just before this happened was 60 seconds or less in length. The problem appears to stem from code in iTunes that signals the next track to start downloading one minute before the currently-playing track is done, and thus songs shorter than one minute don't trigger the download. Locally-stored music is unaffected by the bug, and the problem does not appear to exist in either the macOS Sierra developer beta or versions of iTunes earlier than 12.4, and does not affect the iOS Music app at all. http://bit.ly/291cN0l
Walmart Pay expands to 15 states
Walmart, one of the key progenitors of the failed CurrentC mobile payment system that was distinguished from Apple Pay by its ability to collect and share customer financial and buying data among its participants, has expanded the soft rollout of its alternative solution "Walmart Pay" to an additional 15 US states following a pilot program in Arkansas and Texas last month. Walmart continues to resist adding Apple Pay. The system, built into the Walmart app for iOS and Android, works with a complicated system of the camera scanning a purchase code at the register, then generating a QR code which is then scanned by the register. The system is available now in Alabama, Georgia, Indiana, Iowa, Kentucky, Louisiana, Michigan, Mississippi, Missouri, Nebraska, North Carolina, North Dakota, South Carolina, South Dakota, Tennessee, Virginia, and Washington, DC. http://apple.co/28SqZfu
Amazon refreshes entry-level Kindle
Amazon has added a new Kindle to its ebook reader range, one that is thinner and lighter than the previous entry-level model. Offering a six-inch 167-dpi touchscreen display, a doubled 4GB of storage, and an option for a white casing, the new model also adds in the ability to export highlights and notes to an email account as a PDF. Two versions of the all-new Kindle are available, priced at $80 including "Special Offers" and $100 without. http://amzn.to/28Q4c3R